CreateProcess: space in a python command passed with -c

Question

I am trying to port muon (a C99 implementation of meson) to Windows, and i have some problem with one of its unit tests. This unit test calls python3 with an array of C string, this array being:

"-c"
"print("some output")"

Note that this array can be any python script passed to the interpreter.

So I call CreateProcess() with lpApplicationName being the string "C:Documentsmsys2mingw64bin/python3.exe" and lpCommandLine being "-c print("some output")" (I have prepended before each " that I find in the string in the above array)

My problem is the space that is in the print() function. I get this error message:

err failed to run python3:   File "<string>", line 1
    print("some
          ^
SyntaxError: unterminated string literal (detected at line 1)

I can’t find a way to modify the string print("some output") so that lpCommandLine is correctly built.

Does someone have an idea how to do this ?

thank you

Asked By: vtorri

||

Source

Answer 1

Have you tried "print('some output')" or 'print("some output")'?

Answered By: OM222O

Answer 2

A user (I can’t remember the name) removed his answer and suggested to add " around each option, and it worked. So I built the C string :

""-c" "print(\"some output\")""

and the tests were successful (except the last one, but this latter is related to lpEnvironment argument of CreateProcess())

Answered By: vtorri

CreateProcess: space in a python command passed with -c

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