The process cannot access the file because it is being used by another process.

Author: ChengYen-Tang

azure_templates/install-msmpi.yml

@@ -6,4 +6,4 @@ steps:
         Invoke-WebRequest "https://github.com/microsoft/Microsoft-MPI/releases/download/v10.1.1/msmpisetup.exe" -OutFile $pwd\msmpisetup.exe ;
         Start-Process $pwd\msmpisetup.exe -ArgumentList '-unattend' -Wait ;
         Remove-Item $pwd\msmpisetup.exe -Force ;
-        Get-CimInstance -Class Win32_Product
+        Get-CimInstance -Class Win32_Product | Where-Object Name -like "Microsoft MPI*"

azure_templates/run-test.yml

@@ -6,6 +6,5 @@ jobs:
       versionSpec: ${{ parameters.PYTHON_VERSION }}
   - template: install-msmpi.yml
   - template: install-python-package.yml
-  - task: CmdLine@2
-    inputs:
-      script: bash -c "python -m pytest --cov-config .coveragerc --cov-report term --cov=. -v tests/test_${{ parameters.GLOB }}"
+  - script: bash -c "python -m pytest --cov-config .coveragerc --cov-report term --cov=. -v tests/test_${{ parameters.GLOB }}"
+    displayName: 'Run test'

tests/test_monitor.py

@@ -1,6 +1,8 @@
 import uuid
 import json
 import os
+import sys
+import warnings
 
 import pandas
 import gym
@@ -34,7 +36,10 @@ def test_monitor():
     last_logline = pandas.read_csv(file_handler, index_col=None)
     assert set(last_logline.keys()) == {'l', 't', 'r'}, "Incorrect keys in monitor logline"
     file_handler.close()
-    os.remove(mon_file)
+    try:
+        os.remove(mon_file)
+    except PermissionError:
+        warnings.warn(str(sys.exc_info()[1]))
 
 def test_monitor_load_results(tmp_path):
     """
@@ -82,5 +87,8 @@ def test_monitor_load_results(tmp_path):
 
     assert results_size2 == (results_size1 + episode_count2)
 
-    os.remove(monitor_file1)
-    os.remove(monitor_file2)
+    try:
+        os.remove(monitor_file1)
+        os.remove(monitor_file2)
+    except PermissionError:
+        warnings.warn(str(sys.exc_info()[1]))