Run Python os.system from a sub package

Question

I need to run a python file using an older python 2.6 version installed with an external software. To do this I have resorted to using os.system such as

os.system('""path/old_python.exe" "file.py""')

(note that the odd no. of ('") is due to the path containing a space c:/program files (x86)/.. as I am running on windows.)

This code string works well if run from a root directory. However, I would like to place this os.system call in a module within a sub-package to my root and thereafter run it from a root module. So the hierarchy would look like this:

/root
    call_os_module.py
    /subpack1
        os_module.py
        file.py

If I run this I receive the error:

path/old_python.exe: can't open file 'file.py': [Errno 2] No such file or directory

I have added the full path to subpack1 to sys.path. However, I still receive the same error and os can't find the file. How do I solve this?

Why can't you just use `os.system('""path/old_python.exe" "subpack1/file.py""')` ? — starrify, May 07 '14 at 10:15

score 0 · Answer 1 · edited May 23 '17 at 11:58

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Have a look at these questions:

edited May 23 '17 at 11:58

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answered May 07 '14 at 19:02

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Run Python os.system from a sub package

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