[arvados] created: 2.5.0-5-ga924a9ff6

git repository hosting git at public.arvados.org
Mon Jan 2 20:33:11 UTC 2023


        at  a924a9ff66b1b7a1b32e9dcb638ddf64bca39101 (commit)


commit a924a9ff66b1b7a1b32e9dcb638ddf64bca39101
Author: Brett Smith <brett.smith at curii.com>
Date:   Mon Jan 2 15:27:07 2023 -0500

    19792: Revamp the Python SDK cookbook
    
    * Organize the recipes into related sections based on what they work
      on.
    
    * Add a preface to each recipe to explain when you might use it, give
      API background, etc.
    
    * Write the recipes in a style that emphasizes readability with long
      variable names, lots of line breaks, and comments highlighting
      key mechanics and variations.
    
    * Modernize SDK usage in the recipes.
    
    * Add links to supporting documentation where available.
    
    As much as practical, I have maintained existing anchor names, even when
    I updated header names for more consistent style.
    
    Arvados-DCO-1.1-Signed-off-by: Brett Smith <brett.smith at curii.com>

diff --git a/doc/_config.yml b/doc/_config.yml
index 2a1ba0002..35dfe03ae 100644
--- a/doc/_config.yml
+++ b/doc/_config.yml
@@ -79,10 +79,10 @@ navbar:
     - Python:
       - sdk/python/sdk-python.html.textile.liquid
       - sdk/python/api-client.html.textile.liquid
+      - sdk/python/cookbook.html.textile.liquid
       - sdk/python/python.html.textile.liquid
       - sdk/python/arvados-fuse.html.textile.liquid
       - sdk/python/arvados-cwl-runner.html.textile.liquid
-      - sdk/python/cookbook.html.textile.liquid
       - sdk/python/events.html.textile.liquid
     - CLI:
       - sdk/cli/install.html.textile.liquid
diff --git a/doc/sdk/python/cookbook.html.textile.liquid b/doc/sdk/python/cookbook.html.textile.liquid
index 53330dcbe..a98d32460 100644
--- a/doc/sdk/python/cookbook.html.textile.liquid
+++ b/doc/sdk/python/cookbook.html.textile.liquid
@@ -10,365 +10,671 @@ Copyright (C) The Arvados Authors. All rights reserved.
 SPDX-License-Identifier: CC-BY-SA-3.0
 {% endcomment %}
 
-# "Cancel a container request":#cancel-a-container-request
-# "Cancel all container requests":#cancel-all-container-requests
-# "List completed container requests":#list-completed-container-requests
-# "Get input of a CWL workflow":#get-input-of-a-cwl-workflow
-# "Get output of a CWL workflow":#get-output-of-a-cwl-workflow
-# "Get state of a CWL workflow":#get-state-of-a-cwl-workflow
-# "List input of child requests":#list-input-of-child-requests
-# "List output of child requests":#list-output-of-child-requests
-# "List failed child requests":#list-failed-child-requests
-# "Get log of a child request":#get-log-of-a-child-request
-# "Create a collection sharing link":#sharing-link
-# "Combine two or more collections":#combine-two-or-more-collections
-# "Upload a file into a new collection":#upload-a-file-into-a-new-collection
-# "Download a file from a collection":#download-a-file-from-a-collection
-# "Copy files from a collection to a new collection":#copy-files-from-a-collection-to-a-new-collection
-# "Copy files from a collection to another collection":#copy-files-from-a-collection-to-another-collection
-# "Delete a file from an existing collection":#delete-a-file-from-an-existing-collection
-# "Listing records with paging":#listing-records-with-paging
-# "Querying the vocabulary definition":#querying-the-vocabulary-definition
-# "Translating between vocabulary identifiers and labels":#translating-between-vocabulary-identifiers-and-labels
-# "Create a Project":#create-a-project
-
-h2(#cancel-a-container-request). Cancel a container request
+# "Introduction":#introduction
+# "Working with the current user":#working-with-current-user
+## "Fetch the current user":#fetch-current-user
+## "List objects shared with the current user":#list-shared-objects
+# "Working with projects":#working-with-projects
+## "Create a project":#create-a-project
+## "List the contents of a project":#list-project-contents
+# "Working with collections":#working-with-collections
+## "Load and update an existing collection":#load-collection
+## "Create and save a new collection":#create-collection
+## "Read a file from a collection":#download-a-file-from-a-collection
+## "Write a file to a collection":#upload-a-file-into-a-new-collection
+## "Delete a file from a collection":#delete-a-file-from-an-existing-collection
+## "Copy a file between collections":#copy-files-from-a-collection-to-another-collection
+## "Combine two or more collections":#combine-two-or-more-collections
+## "Create a collection sharing link":#sharing-link
+# "Working with containers and workflow runs":#working-with-containers
+## "Get input of a container or CWL workflow run":#get-input-of-a-cwl-workflow
+## "Get output of a container or CWL workflow run":#get-output-of-a-cwl-workflow
+## "Get logs of a container or CWL workflow run":#get-log-of-a-child-request
+## "Get status of a container or CWL workflow run":#get-state-of-a-cwl-workflow
+## "List child requests of a container or CWL workflow run":#list-failed-child-requests
+# "Working with the container request queue":#working-with-container-request-queue
+## "List completed container requests":#list-completed-container-requests
+## "Cancel a container request":#cancel-a-container-request
+# "Working with vocabularies":#working-with-vocabularies
+## "Query the vocabulary definition":#querying-the-vocabulary-definition
+## "Translate between vocabulary identifiers and labels":#translating-between-vocabulary-identifiers-and-labels
+
+h2(#introduction). Introduction
+
+This page assumes you've already read the "API client documentation":{{ site.baseurl }}/sdk/python/api-client.html and understand the basics of using the Python SDK client. You don't have to have the details of every API method memorized, but you should at least be comfortable with the pattern of calling a resource type, API method, and @execute()@, as well as the dictionaries these methods return.
+
+The code examples assume you've built the @arv_client@ object by doing something like:
 
 {% codeblock as python %}
 import arvados
-arvados.api().container_requests().update(uuid=container_request_uuid, body={"priority": 0}).execute()
+arv_client = arvados.api('v1', ...)
 {% endcodeblock %}
 
-h2(#cancel-all-container-requests). Cancel all container requests
+These examples work no matter how you call @arvados.api()@, or if you use another constructor from "@arvados.api@ module":{{ site.baseurl }}/sdk/python/arvados/api.html. Just understand that @arv_client@ represents your client object, no matter how you built it.
+
+Whenever you see the Ellipsis object @...@ in these examples, that means you may need or want to fill something in. That might be list items, function arguments, or your own code. Comments will provide additional guidance.
+
+Whenever you see the example UUID @zzzzz-zzzzz-12345abcde67890@, you should provide your own UUID from input.
+
+h2(#working-with-current-user). Working with the current user
+
+h3(#fetch-current-user). Fetch the current user
+
+The API provides a "dedicated users method named @current@":{{ site.baseurl }}/api/methods/users.html#current. It returns the user object that is authenticated by your current API token. Use this method to get the current user's UUID to use in other API calls, or include user details like name in your output.
 
 {% codeblock as python %}
-import arvados
-api = arvados.api()
-result = api.container_requests().list(filters=[["state", "=", "Committed"], ["priority", ">", "0"]]).execute()["items"]
-for container_request in result:
-    api.container_requests().update(uuid=container_request["uuid"], body={"priority": 0}).execute()
+current_user = arv_client.users().current().execute()
 {% endcodeblock %}
 
-h2(#list-completed-container-requests). List completed container requests
+h3(#list-shared-objects). List objects shared with the current user
+
+The API provides a "dedicated groups method named @shared@":{{ site.baseurl }}/api/methods/groups.html#shared to do this. Call it like you would any other list method. This example illustrates some popular arguments. Check the API reference for full details of all possible arguments.
 
 {% codeblock as python %}
-import arvados
-api = arvados.api()
-result = api.container_requests().list(filters=[["name", "like", name], ["state", "=", "Final"]]).execute()["items"]
-container_uuids = [cr["container_uuid"] for cr in result]
-containers = api.containers().list(filters=[["uuid", "in", container_uuids]]).execute()["items"]
-container_dict = {c["uuid"]: c for c in containers}
+for item in arvados.util.keyset_list_all(
+    # Do *not* call the method here, just pass it.
+    arv_client.groups().shared,
+    # Pass filters to limit what objects are returned.
+    # This example returns only subprojects.
+    filters=[
+        ['uuid', 'is_a', 'arvados#group'],
+        ['group_class', '=', 'project'],
+    ],
+    # Pass order_key and ascending to control how the contents are sorted.
+    # This example lists projects in ascending creation time (the default).
+    order_key='created_at',
+    ascending=True,
+):
+    ...  # Work on item as desired
+{% endcodeblock %}
+
+h2(#working-with-projects). Working with projects
+
+h3(#create-a-project). Create a project
+
+A project is represented in the Arvados API as a group with its @group_class@ field set to @"project"@.
 
-for container_request in result:
-    container = container_dict[container_request["container_uuid"]]
-    print("%s, %s, %s" % (container_request["uuid"], container_request["name"], "Success" if container["exit_code"] == 0 else "Failed"))
+{% codeblock as python %}
+new_project = arv_client.groups().create(
+    body={
+        'group': {
+            'group_class': 'project',
+            'name': 'Python SDK Test Project',
+            # owner_uuid can be the UUID for an Arvados user or group.
+            # Specify the UUID of an existing project to make a subproject.
+            # If not specified, the current user is the default owner.
+            'owner_uuid': 'zzzzz-j7d0g-12345abcde67890',
+        },
+    },
+    ensure_unique_name=True,
+).execute()
 {% endcodeblock %}
 
-h2(#get-input-of-a-cwl-workflow). Get input of a CWL workflow
+h3(#list-project-contents). List the contents of a project
+
+The API provides a "dedicated groups method named @contents@":{{ site.baseurl }}/api/methods/groups.html#contents to do this. Call it like you would any other list method. This example illustrates some popular arguments. Check the API reference for full details of all possible arguments.
 
 {% codeblock as python %}
-import arvados
-api = arvados.api()
-container_request_uuid="zzzzz-xvhdp-zzzzzzzzzzzzzzz"
-container_request = api.container_requests().get(uuid=container_request_uuid).execute()
-print(container_request["mounts"]["/var/lib/cwl/cwl.input.json"])
+current_user = arv_client.users().current().execute()
+for item in arvados.util.keyset_list_all(
+    # Do *not* call the method here, just pass it.
+    arv_client.groups().contents,
+    # The UUID of the project whose contents we're listing.
+    # Pass a user UUID to list their home project.
+    # This example lists the current user's home project.
+    uuid=current_user['uuid'],
+    # Pass filters to limit what objects are returned.
+    # This example returns only subprojects.
+    filters=[
+        ['uuid', 'is_a', 'arvados#group'],
+        ['group_class', '=', 'project'],
+    ],
+    # Pass recursive=True to include results from subprojects in the listing.
+    recursive=False,
+    # Pass include_trash=True to include objects in the listing whose
+    # trashed_at time is passed.
+    include_trash=False,
+):
+    ...  # Work on item as desired
 {% endcodeblock %}
 
-h2(#get-output-of-a-cwl-workflow). Get output of a CWL workflow
+h2(#working-with-collections). Working with collections
+
+The "@arvados.collection.Collection@ class":{{ site.baseurl }}/sdk/python/arvados/collection.html#arvados.collection.Collection provides a high-level interface to read, create, and update collections. It orchestrates multiple requests to API and Keep so you don't have to worry about the low-level details of keeping everything in sync. It uses threads to make multiple requests to Keep in parallel.
+
+This page only shows you how to perform common tasks using the @Collection@ class. To see all the supported constructor arguments and methods, refer to "the @Collection@ class documentation":{{ site.baseurl }}/sdk/python/arvados/collection.html#arvados.collection.Collection.
+
+h3(#load-collection). Load and update an existing collection
+
+Construct the @Collection@ class with the UUID of a collection you want to read. You can pass additional constructor arguments as needed.
 
 {% codeblock as python %}
-import arvados
 import arvados.collection
-api = arvados.api()
-container_request_uuid="zzzzz-xvhdp-zzzzzzzzzzzzzzz"
-container_request = api.container_requests().get(uuid=container_request_uuid).execute()
-collection = arvados.collection.CollectionReader(container_request["output_uuid"])
-print(collection.open("cwl.output.json").read())
+collection = arvados.collection.Collection('zzzzz-4zz18-12345abcde67890', ...)
 {% endcodeblock %}
 
-h2(#get-state-of-a-cwl-workflow). Get state of a CWL workflow
+If you make changes to the collection and want to update the existing collection, call the "@Collection.save@ method":{{ site.baseurl }}/sdk/python/arvados/collection.html#arvados.collection.Collection.save:
 
 {% codeblock as python %}
-import arvados
-def get_cr_state(cr_uuid):
-    api = arvados.api()
-    cr = api.container_requests().get(uuid=cr_uuid).execute()
-    if cr['container_uuid'] is None:
-        return cr['state']
-    c = api.containers().get(uuid=cr['container_uuid']).execute()
-    if cr['state'] == 'Final' and c['state'] != 'Complete':
-        return 'Cancelled'
-    elif c['state'] in ['Locked', 'Queued']:
-        if c['priority'] == 0:
-            return 'On hold'
-        else:
-            return 'Queued'
-    elif c['state'] == 'Complete' and c['exit_code'] != 0:
-        return 'Failed'
-    elif c['state'] == 'Running':
-        if c['runtime_status'].get('error', None):
-            return 'Failing'
-        elif c['runtime_status'].get('warning', None):
-            return 'Warning'
-    return c['state']
-container_request_uuid = 'zzzzz-xvhdp-zzzzzzzzzzzzzzz'
-print(get_cr_state(container_request_uuid))
+collection.save()
 {% endcodeblock %}
 
-h2(#list-input-of-child-requests). List input of child requests
+If you would rather save your changes as a new collection object, call the "@Collection.save_new@ method":{{ site.baseurl }}/sdk/python/arvados/collection.html#arvados.collection.Collection.save_new. This example illustrates some popular arguments. Check the API reference for full details of all possible arguments.
 
 {% codeblock as python %}
-import arvados
-api = arvados.api()
-parent_request_uuid = "zzzzz-xvhdp-zzzzzzzzzzzzzzz"
-namefilter = "bwa%"  # the "like" filter uses SQL pattern match syntax
-container_request = api.container_requests().get(uuid=parent_request_uuid).execute()
-parent_container_uuid = container_request["container_uuid"]
-child_requests = api.container_requests().list(filters=[
-    ["requesting_container_uuid", "=", parent_container_uuid],
-    ["name", "like", namefilter]]).execute()
-for c in child_requests["items"]:
-    print("%s" % c["name"])
-    for m in c["mounts"].values():
-        if "portable_data_hash" in m:
-            print("  %s" % m["portable_data_hash"])
+collection.save_new(
+    name='Collection updated by Python SDK',
+    # owner_uuid can be the UUID for an Arvados user or group.
+    # Specify the UUID of a project to add this collection to it.
+    owner_uuid='zzzzz-j7d0g-12345abcde67890',
+)
 {% endcodeblock %}
 
-h2(#list-output-of-child-requests). List output of child requests
+h3(#create-collection). Create and save a new collection
+
+Construct the @Collection@ class without an existing collection UUID or manifest text. You can pass additional constructor arguments as needed.
 
 {% codeblock as python %}
-import arvados
-api = arvados.api()
-parent_request_uuid = "zzzzz-xvhdp-zzzzzzzzzzzzzzz"
-namefilter = "bwa%"  # the "like" filter uses SQL pattern match syntax
-container_request = api.container_requests().get(uuid=parent_request_uuid).execute()
-parent_container_uuid = container_request["container_uuid"]
-child_requests = api.container_requests().list(filters=[
-    ["requesting_container_uuid", "=", parent_container_uuid],
-    ["name", "like", namefilter]]).execute()
-output_uuids = [c["output_uuid"] for c in child_requests["items"]]
-collections = api.collections().list(filters=[["uuid", "in", output_uuids]]).execute()
-uuid_to_pdh = {c["uuid"]: c["portable_data_hash"] for c in collections["items"]}
-for c in child_requests["items"]:
-    print("%s -> %s" % (c["name"], uuid_to_pdh[c["output_uuid"]]))
+import arvados.collection
+new_collection = arvados.collection.Collection(...)
 {% endcodeblock %}
 
-h2(#list-failed-child-requests). List failed child requests
+Usually you'll upload or copy files to the new collection. Once you're done with that and ready to save your changes, call the "@Collection.save_new@ method":{{ site.baseurl }}/sdk/python/arvados/collection.html#arvados.collection.Collection.save_new. This example illustrates some popular arguments. Check the API reference for full details of all possible arguments.
 
 {% codeblock as python %}
-import arvados
-api = arvados.api()
-parent_request_uuid = "zzzzz-xvhdp-zzzzzzzzzzzzzzz"
-container_request = api.container_requests().get(uuid=parent_request_uuid).execute()
-parent_container_uuid = container_request["container_uuid"]
-child_requests = api.container_requests().list(filters=[
-    ["requesting_container_uuid", "=", parent_container_uuid]], limit=1000).execute()
-child_containers = {c["container_uuid"]: c for c in child_requests["items"]}
-cancelled_child_containers = api.containers().list(filters=[
-    ["exit_code", "!=", "0"],
-    ["uuid", "in", list(child_containers.keys())]], limit=1000).execute()
-for c in cancelled_child_containers["items"]:
-    print("%s (%s)" % (child_containers[c["uuid"]]["name"], child_containers[c["uuid"]]["uuid"]))
+new_collection.save_new(
+    name='Collection created by Python SDK',
+    # owner_uuid can be the UUID for an Arvados user or group.
+    # Specify the UUID of a project to add this collection to it.
+    owner_uuid='zzzzz-j7d0g-12345abcde67890',
+)
 {% endcodeblock %}
 
-h2(#get-log-of-a-child-request). Get log of a child request
+h3(#download-a-file-from-a-collection). Read a file from a collection
+
+Once you have a @Collection@ object, the "@Collection.open@ method":{{ site.baseurl }}/sdk/python/arvados/collection.html#arvados.collection.RichCollectionBase.open lets you open files from a collection the same way you would open files from disk using Python's built-in @open@ function. It returns a file-like object that you can use in many of the same ways you would use any other file object.
 
 {% codeblock as python %}
-import arvados
 import arvados.collection
-api = arvados.api()
-container_request_uuid = "zzzzz-xvhdp-zzzzzzzzzzzzzzz"
-container_request = api.container_requests().get(uuid=container_request_uuid).execute()
-collection = arvados.collection.CollectionReader(container_request["log_uuid"])
-for c in collection:
-    if isinstance(collection.find(c), arvados.arvfile.ArvadosFile):
-        print(collection.open(c).read())
+collection = arvados.collection.Collection(...)
+with collection.open('ExampleFile') as my_file:
+    ...
 {% endcodeblock %}
 
-h2(#sharing_link). Create a collection sharing link
+For a low-level example, this code prints all non-empty lines from @ExampleFile@ in your collection:
 
 {% codeblock as python %}
-import arvados
-api = arvados.api()
-download="https://your.download.server"
-collection_uuid="zzzzz-4zz18-zzzzzzzzzzzzzzz"
-token = api.api_client_authorizations().create(body={"api_client_authorization":{"scopes": [
-    "GET /arvados/v1/collections/%s" % collection_uuid,
-    "GET /arvados/v1/collections/%s/" % collection_uuid,
-    "GET /arvados/v1/keep_services/accessible"]}}).execute()
-print("%s/c=%s/t=%s/_/" % (download, collection_uuid, token["api_token"]))
+with collection.open('ExampleFile') as my_file:
+    for line in my_file:
+        if not line.isspace():
+            print(line, end='')
 {% endcodeblock %}
 
-h2(#combine-two-or-more-collections). Combine two or more collections
+For a higher-level example, you can pass the returned file object as a source for Python's standard "@shutil.copyfileobj@ function":https://docs.python.org/3/library/shutil.html#shutil.copyfileobj to download it. This code downloads @ExampleFile@ from your collection and saves it to the current working directory as @ExampleDownload@:
 
-Note, if two collections have files of the same name, the contents will be concatenated in the resulting manifest.
+{% codeblock as python %}
+import shutil
+with (
+  collection.open('ExampleFile') as src_file,
+  open('ExampleDownload', 'w') as dst_file,
+):
+    shutil.copyfileobj(src_file, dst_file)
+{% endcodeblock %}
+
+h3(#upload-a-file-into-a-new-collection). Write a file to a collection
+
+Once you have a @Collection@ object, the "@Collection.open@ method":{{ site.baseurl }}/sdk/python/arvados/collection.html#arvados.collection.RichCollectionBase.open lets you open files from a collection the same way you would open files from disk using Python's built-in @open@ function. Pass a second mode argument like @'w'@ or @'a'@ to write a file in the collection. It returns a file-like object that you can use in many of the same ways you would use any other file object.
 
 {% codeblock as python %}
-import arvados
 import arvados.collection
-api = arvados.api()
-project_uuid = "zzzzz-j7d0g-zzzzzzzzzzzzzzz"
-collection_uuids = ["zzzzz-4zz18-aaaaaaaaaaaaaaa", "zzzzz-4zz18-bbbbbbbbbbbbbbb"]
-combined_manifest = ""
-for u in collection_uuids:
-    c = api.collections().get(uuid=u).execute()
-    combined_manifest += c["manifest_text"]
-newcol = arvados.collection.Collection(combined_manifest)
-newcol.save_new(name="My combined collection", owner_uuid=project_uuid)
+collection = arvados.collection.Collection(...)
+with collection.open('ExampleFile', 'w') as my_file:
+    ...
 {% endcodeblock %}
 
-h2(#upload-a-file-into-a-new-collection). Upload a file into a new collection
+For a low-level example, this code writes @Hello, world!@ to a file named @ExampleHello@ in your collection:
 
 {% codeblock as python %}
-import arvados
-import arvados.collection
+with collection.open('ExampleHello', 'w') as my_file:
+    print("Hello, world!", file=my_file)
+collection.save_new(...)  # or collection.save() to update an existing collection
+{% endcodeblock %}
 
-project_uuid = "zzzzz-j7d0g-zzzzzzzzzzzzzzz"
-collection_name = "My collection"
-filename = "file1.txt"
+For a higher-level example, you can pass the returned file object as a destination for Python's standard "@shutil.copyfileobj@ function":https://docs.python.org/3/library/shutil.html#shutil.copyfileobj to upload a file to a collection. This code reads @ExampleFile@ from the current working directory and uploads it into your collection as @ExampleUpload@:
 
-api = arvados.api()
-c = arvados.collection.Collection()
-with open(filename, "rb") as reader:
-    with c.open(filename, "wb") as writer:
-        content = reader.read(128*1024)
-        while content:
-            writer.write(content)
-            content = reader.read(128*1024)
-c.save_new(name=collection_name, owner_uuid=project_uuid)
-print("Saved %s to %s" % (collection_name, c.manifest_locator()))
+{% codeblock as python %}
+import shutil
+with (
+  open('ExampleFile') as src_file,
+  collection.open('ExampleUpload', 'w') as dst_file,
+):
+    shutil.copyfileobj(src_file, dst_file)
+collection.save_new(...)  # or collection.save() to update an existing collection
 {% endcodeblock %}
 
-h2(#download-a-file-from-a-collection). Download a file from a collection
+h3(#delete-a-file-from-an-existing-collection). Delete a file from a collection
+
+Once you have a @Collection@ object, call the "@Collection.remove@ method":{{ site.baseurl }}/sdk/python/arvados/collection.html#arvados.collection.Collection.remove with a file path to remove that file or directory from the collection.
+
+{% codeblock as python %}
+import arvados.collection
+collection = arvados.collection.Collection(...)
+collection.remove('ExamplePath')
+collection.save_new(...)  # or collection.save() to update an existing collection
+{% endcodeblock %}
+
+Like most Unix tools, @Collection.remove@ will raise an error if you try to remove a non-empty directory. Pass @recursive=True@ to delete everything under that directory from the collection:
 
 {% codeblock as python %}
-import arvados
 import arvados.collection
+collection = arvados.collection.Collection(...)
+collection.remove('ExampleDirectoryPath', recursive=True)
+collection.save_new(...)  # or collection.save() to update an existing collection
+{% endcodeblock %}
+
+h3(#copy-files-from-a-collection-to-another-collection). Copy a file between collections
 
-collection_uuid = "zzzzz-4zz18-zzzzzzzzzzzzzzz"
-filename = "file1.txt"
+Once you have one or more @Collection@ objects, call the "@Collection.copy@ method":{{ site.baseurl }}/sdk/python/arvados/collection.html#arvados.collection.RichCollectionBase.copy on the destination collection to copy files to it. This method doesn't re-upload data, so it's very efficient.
 
-api = arvados.api()
-c = arvados.collection.CollectionReader(collection_uuid)
-with c.open(filename, "rb") as reader:
-    with open(filename, "wb") as writer:
-        content = reader.read(128*1024)
-        while content:
-            writer.write(content)
-            content = reader.read(128*1024)
-print("Finished downloading %s" % filename)
+{% codeblock as python %}
+import arvados.collection
+src_collection = arvados.collection.Collection(...)
+dst_collection = arvados.collection.Collection(...)
+dst_collection.copy(
+    # The path of the source file or directory to copy
+    'ExamplePath',
+    # The path where the source file or directory will be copied.
+    # Pass the empty string like this to copy it to the same path.
+    '',
+    # The collection where the source file or directory comes from.
+    # If not specified, the default is the current collection (so you'll
+    # make multiple copies of the same data in the same collection).
+    source_collection=src_collection,
+    # Pass overwrite=True to force the method to overwrite any data
+    # that already exists at the given path in the current collection.
+    overwrite=False,
+)
+dst_collection.save_new(...)  # or dst_collection.save() to update an existing collection
 {% endcodeblock %}
 
-h2(#copy-files-from-a-collection-to-a-new-collection). Copy files from a collection to a new collection
+h3(#combine-two-or-more-collections). Combine two or more collections
+
+You can concatenate manifest texts from multiple collections to create a single collection that contains all the data from the source collections. Note that if multiple source collections have data at the same path, the merged collection will have a single file at that path with concatenated data from the source collections.
 
 {% codeblock as python %}
 import arvados.collection
 
-source_collection = "zzzzz-4zz18-zzzzzzzzzzzzzzz"
-target_project = "zzzzz-j7d0g-zzzzzzzzzzzzzzz"
-target_name = "Files copied from source_collection"
-files_to_copy = ["folder1/sample1/sample1_R1.fastq",
-                 "folder1/sample2/sample2_R1.fastq"]
+# Retrieve all of the source collection manifest texts
+src_collection_uuid_list = [
+    'zzzzz-4zz18-111111111111111',
+    'zzzzz-4zz18-222222222222222',
+    ...,
+]
+manifest_texts = [
+    arvados.collection.Collection(uuid).manifest_text()
+    for uuid in src_collection_uuid_list
+]
+
+# Initialize a new collection object from the concatenated manifest text
+new_collection = arvados.collection.Collection(''.join(manifest_texts), ...)
+
+# Record the new collection in Arvados
+new_collection.save_new(
+    name='Collection merged by Python SDK',
+    owner_uuid='zzzzz-j7d0g-12345abcde67890',
+)
+{% endcodeblock %}
 
-source = arvados.collection.CollectionReader(source_collection)
-target = arvados.collection.Collection()
+h3(#sharing-link). Create a collection sharing link
 
-for f in files_to_copy:
-    target.copy(f, "", source_collection=source)
+You can create a sharing link for a collection by creating a new API token that is only allowed to read that collection; then constructing a link to your Keep web server that includes the collection UUID and the new token.
 
-target.save_new(name=target_name, owner_uuid=target_project)
-print("Created collection %s" % target.manifest_locator())
+{% codeblock as python %}
+import urllib.parse
+
+# The UUID of the collection you want to share
+collection_uuid = 'zzzzz-4zz18-12345abcde67890'
+
+sharing_token_scopes = [
+    'GET /arvados/v1/keep_services/accessible',
+    f'GET /arvados/v1/collections/{collection_uuid}',
+    f'GET /arvados/v1/collections/{collection_uuid}/',
+]
+sharing_token = arv_client.api_client_authorizations().create(
+    body={
+        'api_client_authorization': {
+            'scopes': sharing_token_scopes,
+        },
+    },
+).execute()
+
+sharing_url_parts = (
+    # The scheme your Keep web server uses. Change this to 'http' if you must.
+    'https',
+    # The hostname, and optionally port, your Keep web server uses
+    'collections.zzzzz.example.com',
+    # You shouldn't need to change any other items
+    f'/c={collection_uuid}/t={sharing_token["api_token"]}/_/',
+    None,
+    None,
+)
+sharing_url = urllib.parse.urlunsplit(sharing_url_parts)
+print(sharing_url)
 {% endcodeblock %}
 
-h2(#copy-files-from-a-collection-to-another-collection). Copy files from a collection to another collection
+h2(#working-with-containers). Working with containers
+
+If you haven't already, start by reading the "Computing with Crunch":{{ site.baseurl }}/api/execution.html guide. It provides a high-level overview of how users submit work to Arvados as container requests; how Arvados dispatches that work to containers; and how Arvados records the association and results back on the original container request record.
+
+If you have experience running CWL workflows on Workbench 2, it runs through this same API. When you start that workflow run, Workbench 2 creates a small container request to run a "CWL runner" tool with the specific inputs you gave it. Once Crunch dispatches a container for it, the CWL runner creates additional container requests to run each step of the workflow, and oversees the process until the workflow runs to completion. The UUID of this container is recorded in the @container_uuid@ field of the container request you submitted.
+
+The UUID of the CWL runner container is recorded in the @requesting_container_uuid@ field of each container request it creates. You can list container requests with a filter on this field to inspect each step of the workflow individually, as shown below.
+
+The next few sections include two examples: a high-level example that describes how to work with any container request, and a more specific example that provides more detail about how to work with CWL workflow runs.
+
+h3(#get-input-of-a-cwl-workflow). Get input of a container or CWL workflow run
+
+A container request's most varied inputs are recorded in the @mounts@ field, which can include data from Keep, specific collections, Git checkouts, and static files. You might also be interested in the @environment@, @command@, @container_image@, and @secret_mounts@ fields. Refer to the "container requests API documentation":{{ site.baseurl }}/api/methods/container_requests.html for details.
 
 {% codeblock as python %}
-import arvados.collection
+container_request = arv_client.container_requests().get(
+    uuid='zzzzz-xvhdp-12345abcde67890',
+).execute()
+# From here, you can process any of the container request's input fields.
+# Below is an example of listing all the mounts.
+import pprint
+for mount_name, mount_source in container_request['mounts'].items():
+    mount_summary = []
+    # These are the fields that define different types of mounts.
+    # Try to collect them all. Just skip any that aren't set.
+    for key in ['kind', 'uuid', 'portable_data_hash', 'commit', 'path']:
+        try:
+            mount_summary.append(mount_source[key])
+        except KeyError:
+            pass
+    print(f"{mount_name}: {' '.join(mount_summary)}")
+    if mount_source.get('kind') == 'json':
+        pprint.pprint(mount_source.get('content'))
+{% endcodeblock %}
+
+When you run a CWL workflow, the CWL inputs are stored in a JSON mount named @/var/lib/cwl/cwl.input.json at .
 
-source_collection = "zzzzz-4zz18-zzzzzzzzzzzzzzz"
-target_collection = "zzzzz-4zz18-aaaaaaaaaaaaaaa"
-files_to_copy = ["folder1/sample1/sample1_R1.fastq",
-                 "folder1/sample2/sample2_R1.fastq"]
+{% codeblock as python %}
+container_request = arv_client.container_requests().get(
+    uuid='zzzzz-xvhdp-12345abcde67890',
+).execute()
+cwl_input = container_request['mounts']['/var/lib/cwl/cwl.input.json']['content']
+...  # Work with the cwl_input dictionary
+{% endcodeblock %}
 
-source = arvados.collection.CollectionReader(source_collection)
-target = arvados.collection.Collection(target_collection)
+h3(#get-output-of-a-cwl-workflow). Get output of a container or CWL workflow run
 
-for f in files_to_copy:
-    target.copy(f, "", source_collection=source)
+A container's output files are saved in a collection. The UUID of that collection is recorded in the @output_uuid@ of the container request, which you can load as you like.
 
-target.save()
+{% codeblock as python %}
+import arvados.collection
+container_request = arv_client.container_requests().get(
+    uuid='zzzzz-xvhdp-12345abcde67890',
+).execute()
+container_output = arvados.collection.Collection(
+    container_request.get('output_uuid'),
+)
+...  # Work with the container_output collection object
 {% endcodeblock %}
 
-h2(#delete-a-file-from-an-existing-collection). Delete a file from an existing collection
+When you run a CWL workflow, the output collection includes a file named @cwl.output.json@ that provides additional information about other files in the output.
 
 {% codeblock as python %}
-import arvados
+import arvados.collection
+import json
+cwl_container_request = arv_client.container_requests().get(
+    uuid='zzzzz-xvhdp-12345abcde67890',
+).execute()
+cwl_output_collection = arvados.collection.Collection(
+    cwl_container_request['output_uuid'],
+)
+with cwl_output_collection.open('cwl.output.json') as cwl_output_file:
+    cwl_output = json.load(cwl_output_file)
+...  # Work with the cwl_output dictionary
+{% endcodeblock %}
+
+h3(#get-log-of-a-child-request). Get logs of a container or CWL workflow run
+
+A container's log files are saved in a collection. The UUID of that collection is recorded in the @log_uuid@ of the container request, which you can load as you like.
+
+{% codeblock as python %}
+import arvados.collection
+container_request = arv_client.container_requests().get(
+    uuid='zzzzz-xvhdp-12345abcde67890',
+).execute()
+log_collection = arvados.collection.Collection(
+    container_request['log_uuid'],
+)
+# From here, you can process the container's log collection any way you like.
+# Below is an example that writes the container's stderr to this process' stderr.
+import shutil
+import sys
+with log_collection.open('stderr.txt') as containter_stderr:
+    shutil.copyfileobj(container_stderr, sys.stderr)
+{% endcodeblock %}
 
-c = arvados.collection.Collection("zzzzz-4zz18-zzzzzzzzzzzzzzz")
-c.remove("file2.txt")
-c.save()
+h3(#get-state-of-a-cwl-workflow). Get status of a container or CWL workflow run
+
+Workbench shows users a single status badge for container requests. This status is synthesized from different fields on the container request and associated container. This code shows how to do analogous reporting using the Python SDK.
+
+{% codeblock as python %}
+container_request = arv_client.container_requests().get(
+    uuid='zzzzz-xvhdp-12345abcde67890',
+).execute()
+if container_request['container_uuid'] is None:
+    status = container_request['state']
+else:
+    container = arv_client.containers().get(
+        uuid=container_request['container_uuid'],
+    ).execute()
+    container_state = container['state']
+    if container_state == 'Queued' or container_state == 'Locked':
+        status = "On hold" if container['priority'] == 0 else "Queued"
+    elif container_state == 'Running':
+        if container['runtime_status'].get('error'):
+            status = "Failing"
+        elif container['runtime_status'].get('warning'):
+            status = "Warning"
+        else:
+            status = container_state
+    elif container_state == 'Cancelled':
+        status = container_state
+    elif container_state == 'Complete':
+        status = "Completed" if container['exit_code'] == 0 else "Failed"
+...  # Report status as desired
 {% endcodeblock %}
 
-h2(#listing-records-with-paging). Listing records with paging
+h3(#list-failed-child-requests). List child requests of a container or CWL workflow run
 
-Use the @arvados.util.keyset_list_all@ helper method to iterate over all the records matching an optional filter.  This method handles paging internally and returns results incrementally using a Python iterator.  The first parameter of the method takes a @list@ method of an Arvados resource (@collections@, @container_requests@, etc).
+When a running container creates a container request to do additional work, the UUID of the source container is recorded in the @requesting_container_uuid@ field of the new container request. You can list container requests with this filter to find requests created by a specific container.
 
 {% codeblock as python %}
 import arvados.util
+for child_container_requests in arvados.util.keyset_list_all(
+    arv_client.container_requests().list,
+    filters=[
+        # Note this is a container UUID, *not* a container request UUID
+        ['requesting_container_uuid', '=', 'zzzzz-dz642-12345abcde67890'],
+        # You may add other filters for your listing.
+        # For example, you could filter by 'name' to find specific kinds
+        # of steps of a CWL workflow.
+        ...,
+    ],
+):
+    ...  # Work with each child container request
+{% endcodeblock %}
+
+If your input only provides the UUID for a container request rather than a container, you can get that container request, then follow the @container_uuid@ field if it is set. (It might not be if the container request has not been dispatched yet.)
 
-api = arvados.api()
-for c in arvados.util.keyset_list_all(api.collections().list, filters=[["name", "like", "%sample123%"]]):
-    print("got collection " + c["uuid"])
+{% codeblock as python %}
+import arvados.util
+parent_container_request = arv_client.container_requests().get(
+    uuid='zzzzz-xvhdp-12345abcde67890',
+).execute()
+parent_container_uuid = parent_container_request['container_uuid']
+if parent_container_uuid is None:
+    # No container has run for this request yet, so there cannot be child requests.
+    child_container_requests = ()
+else:
+    child_container_requests = arvados.util.keyset_list_all(
+        arv_client.container_requests().list,
+        filters=[
+            ['requesting_container_uuid', '=', parent_container_uuid],
+            # You may add other filters for your listing.
+            # For example, you could filter by 'name' to find specific kinds
+            # of steps of a CWL workflow.
+            ...,
+        ],
+    )
+for child_container_request in child_container_requests:
+    ...  # Work with each child container request
 {% endcodeblock %}
 
-h2(#querying-the-vocabulary-definition). Querying the vocabulary definition
+With each child container request, you could repeat any of the recipes listed earlier in this section: examine their status, inputs, outputs, logs, and so on.
 
-The Python SDK provides facilities to interact with the "active metadata vocabulary":{{ site.baseurl }}/admin/metadata-vocabulary.html in the system. The developer can do key and value lookups in a case-insensitive manner:
+h2(#working-with-container-request-queue). Working with the container request queue
 
-{% codeblock as python %}
-from arvados import api, vocabulary
-voc = vocabulary.load_vocabulary(api('v1'))
+h3(#list-completed-container-requests). List completed container requests
 
-[k.identifier for k in set(voc.key_aliases.values())]
-# Example output: ['IDTAGCOLORS', 'IDTAGFRUITS', 'IDTAGCOMMENT', 'IDTAGIMPORTANCES', 'IDTAGCATEGORIES', 'IDTAGSIZES', 'IDTAGANIMALS']
-voc['IDTAGSIZES'].preferred_label
-# Example output: 'Size'
-[v.preferred_label for v in set(voc['size'].value_aliases.values())]
-# Example output: ['S', 'M', 'L', 'XL', 'XS']
-voc['size']['s'].aliases
-# Example output: ['S', 'small']
-voc['size']['Small'].identifier
-# Example output: 'IDVALSIZES2'
+Completed container requests have their @state@ field set to @"Final"@. You can list container requests with this filter to find completed requests.
+
+{% codeblock as python %}
+import arvados.util
+import datetime
+time_filter = datetime.datetime.utcnow()
+time_filter -= datetime.timedelta(days=7)
+
+for container_request in arvados.util.keyset_list_all(
+    # Do *not* call the method here, just pass it.
+    arv_client.container_requests().list,
+    filters=[
+        # This is the filter you need to find completed container requests.
+        ['state', '=', 'Final'],
+        # There could be many completed container requests, so you should
+        # provide additional filters. This example limits the listing to
+        # container requests from the past week.
+        ['created_at', '>=', f'{time_filter.isoformat()}Z'],
+        ...,
+    ],
+):
+    # Work with each container_request as desired.
+    # This example provides a basic status table with the container request
+    # UUID, time the request was created, and time the container finished
+    # (both in UTC).
+    print(
+        container_request['uuid'],
+        container_request['created_at'],
+        container_request['modified_at'],
+    )
 {% endcodeblock %}
 
-h2(#translating-between-vocabulary-identifiers-and-labels). Translating between vocabulary identifiers and labels
+h3(#cancel-a-container-request). Cancel a container request
 
-Client software might need to present properties to the user in a human-readable form or take input from the user without requiring them to remember identifiers. For these cases, there're a couple of conversion methods that take a dictionary as input like this:
+To cancel a container request, update it to set its @priority@ field to 0. See the "containers API reference":{{ site.baseurl }}/api/methods/containers.html for details.
 
 {% codeblock as python %}
-from arvados import api, vocabulary
-voc = vocabulary.load_vocabulary(api('v1'))
+cancelled_container_request = arv_client.container_requests().update(
+    uuid='zzzzz-xvhdp-12345abcde67890',
+    body={
+        'container_request': {
+            'priority': 0,
+        },
+    },
+).execute()
+{% endcodeblock %}
+
+p(#cancel-all-container-requests). If you want to cancel many container requests, you can list container requests with the @state@ field set to @"Committed"@, a @priority@ greater than zero, and any other filters you like. Then update each container request in turn.
 
-voc.convert_to_labels({'IDTAGIMPORTANCES': 'IDVALIMPORTANCES1'})
-# Example output: {'Importance': 'Critical'}
-voc.convert_to_identifiers({'creature': 'elephant'})
-# Example output: {'IDTAGANIMALS': 'IDVALANIMALS3'}
+{% codeblock as python %}
+import arvados.util
+for container_request in arvados.util.keyset_list_all(
+    # Do *not* call the method here, just pass it.
+    arv_client.container_requests().list,
+    filters=[
+        # These are the filters you need to find cancellable container requests.
+        ['state', '=', 'Committed'],
+        ['priority', '>', 0],
+        # You can add other filters as desired.
+        # For example, you might filter on `requesting_container_uuid` to
+        # cancel only steps of one specific workflow.
+        ...,
+    ],
+):
+    cancelled_container_request = arv_client.container_requests().update(
+        uuid=container_request['uuid'],
+        body={
+            'container_request': {
+                'priority': 0,
+            },
+        },
+    ).execute()
 {% endcodeblock %}
 
-h2(#create-a-project). Create a Project
+h2(#working-with-vocabularies). Working with vocabularies
+
+h3(#querying-the-vocabulary-definition). Query the vocabulary definition
+
+The @arvados.vocabulary@ module provides facilities to interact with the "active metadata vocabulary":{{ site.baseurl }}/admin/metadata-vocabulary.html in the system. The "@Vocabulary@ class":{{ site.baseurl }}/sdk/python/arvados/vocabulary.html#arvados.vocabulary.Vocabulary provides a mapping-like view of a cluster's configured vocabulary.
 
 {% codeblock as python %}
-import arvados
+import arvados.vocabulary
+vocabulary = arvados.vocabulary.load_vocabulary(arv_client)
+
+# You can use the vocabulary object to access specific keys and values by
+# case-insensitive mapping, like this:
+#   vocabulary_value = vocabulary[key_alias][value_alias]
+# You can also access the `key_aliases` and `value_aliases` mapping
+# attributes directly to view the entire vocabulary. The example below
+# writes a plaintext table of the vocabulary.
+for vocabulary_key in set(vocabulary.key_aliases.values()):
+    print(
+        vocabulary_key.identifier,
+        vocabulary_key.preferred_label,
+        ', '.join(vocabulary_key.aliases[1:]),
+        sep='\t',
+    )
+    for vocabulary_value in set(vocabulary_key.value_aliases.values()):
+        print(
+            f'↳ {vocabulary_value.identifier}',
+            vocabulary_value.preferred_label,
+            ', '.join(vocabulary_value.aliases[1:]),
+            sep='\t',
+        )
+{% endcodeblock %}
 
-parent_project_uuid = "zzzzz-j7d0g-zzzzzzzzzzzzzzz"
-project_name = "My project"
+h3(#translating-between-vocabulary-identifiers-and-labels). Translate between vocabulary identifiers and labels
 
-g = arvados.api().groups().create(body={
-  "group": {
-    "group_class": "project",
-    "owner_uuid": parent_project_uuid,
-    "name": project_name,
-  }}).execute()
+Client software might need to present properties to the user in a human-readable form or take input from the user without requiring them to remember identifiers. The "@Vocabulary.convert_to_labels@":{{ site.baseurl }}/sdk/python/arvados/vocabulary.html#arvados.vocabulary.Vocabulary.convert_to_labels and "@Vocabulary.convert_to_identifiers@":{{ site.baseurl }}/sdk/python/arvados/vocabulary.html#arvados.vocabulary.Vocabulary.convert_to_identifiers methods help with these tasks, respectively.
 
-print("New project uuid is", g["uuid"])
+{% codeblock as python %}
+import arvados.vocabulary
+vocabulary = arvados.vocabulary.load_vocabulary(arv_client)
+
+# The argument should be a mapping of vocabulary keys and values using any
+# defined aliases, like this:
+#   {'Creature': 'Human', 'Priority': 'Normal'}
+# The return value will be an analogous mapping where all the aliases have
+# been translated to identifiers, like this:
+#   {'IDTAGANIMALS': 'IDVALANIMALS2', 'IDTAGIMPORTANCES': 'IDTAGIMPORTANCES1'}
+properties_by_identifier = vocabulary.convert_to_identifiers({...})
+
+# You can use this to set metadata properties on objects that support them.
+project = arv_client.groups().update(
+    uuid='zzzzz-j7d0g-12345abcde67890',
+    body={
+        'group': {
+            'properties': properties_by_identifier,
+        },
+    },
+).execute()
+
+# You can report properties to the user by their preferred name.
+print(f"{project['name']} ({project['group_class']} {project['uuid']}) updated with properties:")
+for key, value in vocabulary.convert_to_labels(project['properties']).items():
+    print(f"↳ {key}: {value}")
 {% endcodeblock %}

commit 850187ccf9d944ba7867bedf3b5e3528250eed91
Author: Brett Smith <brett.smith at curii.com>
Date:   Mon Jan 2 15:24:32 2023 -0500

    19792: Add anchors to some dedicated API methods
    
    Arvados-DCO-1.1-Signed-off-by: Brett Smith <brett.smith at curii.com>

diff --git a/doc/api/methods/groups.html.textile.liquid b/doc/api/methods/groups.html.textile.liquid
index 72fca4856..af14c56f4 100644
--- a/doc/api/methods/groups.html.textile.liquid
+++ b/doc/api/methods/groups.html.textile.liquid
@@ -99,7 +99,7 @@ See "Common resource methods":{{site.baseurl}}/api/methods.html for more informa
 
 Required arguments are displayed in %{background:#ccffcc}green%.
 
-h3. contents
+h3(#contents). contents
 
 Retrieve a list of items owned by the group.  Use "recursive" to list objects within subprojects as well.
 
@@ -196,7 +196,7 @@ table(table table-bordered table-condensed).
 {background:#ccffcc}.|uuid|string|The UUID of the Group to untrash.|path||
 |ensure_unique_name|boolean (default false)|Rename project uniquely if untrashing it would fail with a unique name conflict.|query||
 
-h3. shared
+h3(#shared). shared
 
 This endpoint returns the toplevel set of groups to which access is granted through a chain of one or more permission links rather than through direct ownership by the current user account.  This is useful for clients which wish to browse the list of projects the user has permission to read which are not part of the "home" project tree.  Similar behavior is also available with the @exclude_home_project@ option of the "contents" endpoint.
 
diff --git a/doc/api/methods/users.html.textile.liquid b/doc/api/methods/users.html.textile.liquid
index 5861ddbf7..cd61bfa36 100644
--- a/doc/api/methods/users.html.textile.liquid
+++ b/doc/api/methods/users.html.textile.liquid
@@ -51,7 +51,7 @@ table(table table-bordered table-condensed).
 |_. Argument |_. Type |_. Description |_. Location |_. Example |
 |user|object||query||
 
-h3. current
+h3(#current). current
 
 Get the user associated with the provided API token.
 

commit 80bf9246b51a1d6207a29cf3d2e20093d1e9f697
Author: Brett Smith <brett.smith at curii.com>
Date:   Wed Dec 28 16:10:18 2022 -0500

    19791: Remove Python SDK "Notes" section
    
    This is now covered more helpfully, and in more detail, in the API
    client overview.
    
    Arvados-DCO-1.1-Signed-off-by: Brett Smith <brett.smith at curii.com>

diff --git a/doc/sdk/python/sdk-python.html.textile.liquid b/doc/sdk/python/sdk-python.html.textile.liquid
index e0dcc5ad2..bf6619406 100644
--- a/doc/sdk/python/sdk-python.html.textile.liquid
+++ b/doc/sdk/python/sdk-python.html.textile.liquid
@@ -97,31 +97,3 @@ Type "help", "copyright", "credits" or "license" for more information.
 h2. Usage
 
 Check out the "API client overview":api-client.html and "cookbook":cookbook.html.
-
-h3. Notes
-
-The general form of an API call is:
-
-<notextile>
-<pre><code class="userinput">arvados.api(<i>api_version</i>).<i>plural_resource_type</i>().<i>api_method</i>(<i>parameter</i>=<i>value</i>, ...).execute()
-</code></pre>
-</notextile>
-
-Many API methods accept a parameter whose name is the same as the resource type. For example, @links.create@ accepts a parameter called @link at . This parameter should be given as @body at .
-
-<notextile>
-<pre><code class="userinput">arvados.api('v1').links().create(
-    uuid=test_link['uuid'],
-    body={'properties':{'foo':'bar'}}).execute()
-</code></pre>
-</notextile>
-
-One way to make API calls slightly less verbose is:
-
-<notextile>
-<pre><code class="userinput">arv = arvados.api('v1')
-j = arv.jobs().list().execute()
-</code></pre>
-</notextile>
-
-The SDK retrieves the list of API methods from the server at run time. Therefore, the set of available methods is determined by the server version rather than the SDK version.

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