temporalio · Sushisource · Apr 16, 2025 · Apr 7, 2025 · Apr 7, 2025 · Apr 8, 2025
@@ -15,6 +15,10 @@ jobs:
         python: ["3.9", "3.13"]
         os: [ubuntu-latest, ubuntu-arm, macos-intel, macos-arm, windows-latest]
         include:
+          # On 3.9 there is a problem with import errors caused by pytests' loader that surface due
+          # to a bug in CPython, so we avoid using the assert rewriter.
+          - python: "3.9"
+            pytestExtraArgs: "--assert=plain"
           - os: ubuntu-latest
             python: "3.13"
             docsTarget: true
@@ -54,13 +58,13 @@ jobs:
       - run: poe lint
       - run: poe build-develop
       - run: mkdir junit-xml
-      - run: poe test -s --junit-xml=junit-xml/${{ matrix.python }}--${{ matrix.os }}.xml
+      - run: poe test ${{matrix.pytestExtraArgs}} -s --junit-xml=junit-xml/${{ matrix.python }}--${{ matrix.os }}.xml
       # Time skipping doesn't yet support ARM
       - if: ${{ !endsWith(matrix.os, '-arm') }}
-        run: poe test -s --workflow-environment time-skipping --junit-xml=junit-xml/${{ matrix.python }}--${{ matrix.os }}--time-skipping.xml
+        run: poe test ${{matrix.pytestExtraArgs}} -s --workflow-environment time-skipping --junit-xml=junit-xml/${{ matrix.python }}--${{ matrix.os }}--time-skipping.xml
       # Check cloud if proper target and not on fork
       - if: ${{ matrix.cloudTestTarget && (github.event.pull_request.head.repo.full_name == '' || github.event.pull_request.head.repo.full_name == 'temporalio/sdk-python') }}
-        run: poe test -s -k test_cloud_client --junit-xml=junit-xml/${{ matrix.python }}--${{ matrix.os }}--cloud.xml
+        run: poe test ${{matrix.pytestExtraArgs}} -s -k test_cloud_client --junit-xml=junit-xml/${{ matrix.python }}--${{ matrix.os }}--cloud.xml
         env:
           TEMPORAL_CLIENT_CLOUD_API_KEY: ${{ secrets.TEMPORAL_CLIENT_CLOUD_API_KEY }}
           TEMPORAL_CLIENT_CLOUD_API_VERSION: 2024-05-13-00

@@ -510,7 +510,7 @@ class GreetingWorkflow:
                 start_to_close_timeout=timedelta(seconds=5),
             )
             workflow.logger.debug("Greeting set to %s", self._current_greeting)
-            
+
             # Wait for salutation update or complete signal (this can be
             # cancelled)
             await asyncio.wait(
@@ -536,7 +536,7 @@ class GreetingWorkflow:
     @workflow.query
     def current_greeting(self) -> str:
         return self._current_greeting
-    
+
     @workflow.update
     def set_and_get_greeting(self, greeting: str) -> str:
       old = self._current_greeting
@@ -622,7 +622,7 @@ Here are the decorators that can be applied:
   * May mutate workflow state, and make calls to other workflow APIs like starting activities, etc.
   * Also accepts the `name` and `dynamic` parameters like signal, with the same semantics.
   * Update handlers may optionally define a validator method by decorating it with `@update_handler_method.validator`.
-    To reject an update before any events are written to history, throw an exception in a validator. Validators cannot 
+    To reject an update before any events are written to history, throw an exception in a validator. Validators cannot
     be `async`, cannot mutate workflow state, and return nothing.
   * See [Signal and update handlers](#signal-and-update-handlers) below
 * `@workflow.query` - Defines a method as a query
@@ -994,7 +994,7 @@ To run an entire workflow outside of a sandbox, set `sandboxed=False` on the `@w
 it. This will run the entire workflow outside of the workflow which means it can share global state and other bad
 things.
 
-To disable the sandbox entirely for a worker, set the `Worker` init's `workflow_runner` keyword argument to 
+To disable the sandbox entirely for a worker, set the `Worker` init's `workflow_runner` keyword argument to
 `temporalio.worker.UnsandboxedWorkflowRunner()`. This value is defaulted to
 `temporalio.worker.workflow_sandbox.SandboxedWorkflowRunner()` so by changing it to the unsandboxed runner, the sandbox
 will not be used at all.