Cast environment variables to integers

doc/src/contributors.md

@@ -7,3 +7,4 @@ The following people have contributed to the development of **row**:
 * Joseph Burkhart, University of Michigan
 * Kate Jensen, University of Michigan
 * Tim Moore, University of Michigan
+* Corwin Kerr, University of Michigan

doc/src/guide/concepts/hoomd-example.py

@@ -17,7 +17,7 @@ def action_implementation(job, communicator):
 
 def action(*jobs):
     """Execute actions on directories in parallel using HOOMD-blue."""
-    processes_per_directory = os.environ['ACTION_PROCESSES_PER_DIRECTORY']
+    processes_per_directory = int(os.environ['ACTION_PROCESSES_PER_DIRECTORY'])
     communicator = hoomd.communicator.Communicator(ranks_per_partition=processes_per_directory)
     action_implementation(jobs[communicator.partition], communicator)
     # ANCHOR_END: action

doc/src/guide/concepts/multiprocessing-example.py

@@ -15,7 +15,7 @@ def action_implementation(job):
 
 def action(*jobs):
     """Process any number of jobs in parallel with the multiprocessing package."""
-    processes = os.environ.get('ACTION_THREADS_PER_PROCESS', multiprocessing.cpu_count())
+    processes = int(os.environ.get('ACTION_THREADS_PER_PROCESS', multiprocessing.cpu_count()))
     if hasattr(os, 'sched_getaffinity'):
         processes = len(os.sched_getaffinity(0))
 

doc/src/release-notes.md

@@ -19,6 +19,7 @@
   properly escaped in the bash script output.
 * Typographical errors in the documentation.
 * The documentation now builds correctly with mdbook 0.4.43.
+* Example code converts environment variables to ints where needed.
 
 ## 0.3.1 (2024-10-04)