cwltool crashes when run by more than one person on the same host

[drjrm3]

Expected Behavior

cwltool should run when more than one person on a host have used it.

Actual Behavior

Instead of running it crashes with

[jmichael(BASH)@c-head001]: cwltool
Traceback (most recent call last):
  File "/hpcf/apps/python/install/3.5.2a/bin/cwltool", line 7, in <module>
    from cwltool.main import main
  File "/hpcf/apps/python/install/3.5.2a/lib/python3.5/site-packages/cwltool/main.py", line 18, in <module>
    import schema_salad.validate as validate
  File "/hpcf/apps/python/install/3.5.2a/lib/python3.5/site-packages/schema_salad/__init__.py", line 38, in <module>
    import avro
  File "<frozen importlib._bootstrap>", line 969, in _find_and_load
  File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 664, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 634, in _load_backward_compatible
  File "/hpcf/apps/python/install/3.5.2a/lib/python3.5/site-packages/past/translation/__init__.py", line 396, in load_module
    if detect_python2(source, self.pathname):
  File "/hpcf/apps/python/install/3.5.2a/lib/python3.5/site-packages/past/translation/__init__.py", line 222, in detect_python2
    with open('/tmp/original_code.py', 'w') as f:
PermissionError: [Errno 13] Permission denied: '/tmp/original_code.py'
[jmichael(BASH)@c-head001]: 

Workflow Code

N/A. Not even a help message shows.

Full Traceback

[jmichael(BASH)@c-head001]: cwltool
Traceback (most recent call last):
  File "/hpcf/apps/python/install/3.5.2a/bin/cwltool", line 7, in <module>
    from cwltool.main import main
  File "/hpcf/apps/python/install/3.5.2a/lib/python3.5/site-packages/cwltool/main.py", line 18, in <module>
    import schema_salad.validate as validate
  File "/hpcf/apps/python/install/3.5.2a/lib/python3.5/site-packages/schema_salad/__init__.py", line 38, in <module>
    import avro
  File "<frozen importlib._bootstrap>", line 969, in _find_and_load
  File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 664, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 634, in _load_backward_compatible
  File "/hpcf/apps/python/install/3.5.2a/lib/python3.5/site-packages/past/translation/__init__.py", line 396, in load_module
    if detect_python2(source, self.pathname):
  File "/hpcf/apps/python/install/3.5.2a/lib/python3.5/site-packages/past/translation/__init__.py", line 222, in detect_python2
    with open('/tmp/original_code.py', 'w') as f:
PermissionError: [Errno 13] Permission denied: '/tmp/original_code.py'
[jmichael(BASH)@c-head001]: 

Your Environment

• cwltool version:
  version is unable to print.

Notes:

This is related to #499. The issue is in https://github.com/PythonCharmers/python-future/blob/master/src/past/translation/__init__.py where hardcoding of /tmp/original_code.py forces multiple users to attempt to overwrite the same file on multi-tenant servers.

[mr-c]

Thank you @drjrm3
Looks like it is time to fork python-future and apply PythonCharmers/python-future#335