General: PYTHONPATH may break OpenPype dependencies

[iLLiCiTiT]

Brief description

Environment PYTHONPATH may break dependencies of OpenPype.

Description

This issue was found due to missing implementation of distutils.spawn which is overriden with Python 2 vendor (e.g. from Nuke). This is almost imposible to catch on OpenPype start as importing of defaukt Python module may be also modified with PYTHONPATH.

Changes

• implemented clean_envs_for_openpype_process which modify envs so OpenPype subrpocess won't be affected by current env values (currently only removes PYTHONPATH env)
• implemented run_openpype_process which use clean_envs_for_openpype_process and prepend openpype executable args
• use run_openpype_process in ExtractBurnin plugin
• renamed get_pype_execute_args -> get_openpype_execute_args

[mkolar]

Task linked: OP-2333 PYTHONPATH may break OpenPype

[64qam]

Publishing from Nuke fails on Extract Burnins:

Instance: 
renderCompositingMain
Message: 
Executing arguments was not successful: "(['C:\\Users\\qam\\pypeclub\\OpenPype\\.venv\\Scripts\\python.exe', 'C:\\Users\\qam\\pypeclub\\OpenPype\\start.py', ['run', 'C:\\Users\\qam\\pypeclub\\OpenPype\\openpype\\scripts\\otio_burnin.py', 'c:/users/qam/appdata/local/temp/tmpaede8k.json']],)"

Output:
>>> version set by environment variable 
>>> run disk mapping command ... 
>>> loading environments ... 
  - for Avalon ... 
  - global OpenPype ... 
  - for modules ... 
*** OpenPype [ 3.8.0-nightly.2 ]  
>>> Using OpenPype from [  C:\Users\qam\pypeclub\OpenPype  ] 
... OpenPype variant:      [  production  ] 
... Running OpenPype from: [  C:\Users\qam\pypeclub\OpenPype  ] 
... Using mongodb:         [  localhost  ] 
... Using FTrack at:       [  https://pype.ftrackapp.com  ] 
... Logging to MongoDB:    [  localhost  ] 
...   - port:              [  27017  ] 
...   - database:          [  openpype  ] 
...   - collection:        [  logs  ] 
...   - user:              [  <N/A>  ] 
Error:
>>> [  Skipping module directory because of missing "__init__.py" file. "C:\Users\qam\pypeclub\OpenPype\openpype\modules\default_modules\settings_module"  ]  
Usage: openpype [OPTIONS] COMMAND [ARGS]... 
Try 'openpype --help' for help. 

Error: No such command 'runC:\Users\qam\pypeclub\OpenPype\openpype\scripts\otio_burnin.pyc:/users/qam/appdata/local/temp/tmpaede8k.json'. 

Line: 
136
Traceback: 
Traceback (most recent call last):
  File "C:\Users\qam\pypeclub\OpenPype\.venv\lib\site-packages\pyblish\plugin.py", line 522, in __explicit_process
    runner(*args)
  File "C:\Users\qam\pypeclub\OpenPype\openpype\plugins\publish\extract_burnin.py", line 79, in process
  File "C:\Users\qam\pypeclub\OpenPype\openpype\plugins\publish\extract_burnin.py", line 315, in main_process
  File "C:\Users\qam\pypeclub\OpenPype\openpype\lib\execute.py", line 181, in run_openpype_process
    return run_subprocess(args, env=env, **kwargs)
  File "C:\Users\qam\pypeclub\OpenPype\openpype\lib\execute.py", line 136, in run_subprocess
    raise RuntimeError(exc_msg)
RuntimeError: Executing arguments was not successful: "(['C:\\Users\\qam\\pypeclub\\OpenPype\\.venv\\Scripts\\python.exe', 'C:\\Users\\qam\\pypeclub\\OpenPype\\start.py', ['run', 'C:\\Users\\qam\\pypeclub\\OpenPype\\openpype\\scripts\\otio_burnin.py', 'c:/users/qam/appdata/local/temp/tmpaede8k.json']],)"

Output:
>>> version set by environment variable 
>>> run disk mapping command ... 
>>> loading environments ... 
  - for Avalon ... 
  - global OpenPype ... 
  - for modules ... 
*** OpenPype [ 3.8.0-nightly.2 ]  
>>> Using OpenPype from [  C:\Users\qam\pypeclub\OpenPype  ] 
... OpenPype variant:      [  production  ] 
... Running OpenPype from: [  C:\Users\qam\pypeclub\OpenPype  ] 
... Using mongodb:         [  localhost  ] 
... Using FTrack at:       [  https://pype.ftrackapp.com  ] 
... Logging to MongoDB:    [  localhost  ] 
...   - port:              [  27017  ] 
...   - database:          [  openpype  ] 
...   - collection:        [  logs  ] 
...   - user:              [  <N/A>  ] 
Error:
>>> [  Skipping module directory because of missing "__init__.py" file. "C:\Users\qam\pypeclub\OpenPype\openpype\modules\default_modules\settings_module"  ]  
Usage: openpype [OPTIONS] COMMAND [ARGS]... 
Try 'openpype --help' for help. 

Error: No such command 'runC:\Users\qam\pypeclub\OpenPype\openpype\scripts\otio_burnin.pyc:/users/qam/appdata/local/temp/tmpaede8k.json'. ```

[iLLiCiTiT]

Should be fixed now

[64qam]

Looks good