subprocess seems not working in pyinstaller exe file

Question

My program in tkinter is working well when I am running it using PyCharm,
when I am creating .exe file using pyinstaller,
pyinstaller -i"icon.ico" -w -F script.py
I have no errors.
I am pasting script.exe in same folder as my script.py, and after running it I think in step where subprocess is, it is not answering, because I haveprint before subprocess line and its working.

Anyone know why?

This is the line with subprocess:

import subprocess
from subprocess import Popen, PIPE
 s = subprocess.Popen([EXE,files,'command'],shell=True, stdout=subprocess.PIPE)

EDIT:

same problem with:

s = subprocess.check_output([EXE,files,'command'],shell=True, stderr=subprocess.STDOUT)

Asked By: sygneto

||

Source

Answer 1

Problem was solved by not using -w command for generating exe file from .py script.

Answered By: sygneto

Answer 2

You can compile your code in -w mode or –windowed, but then you have to assign stdin and stderr as well.

So change:

s = subprocess.Popen([EXE,files,'command'],shell=True, stdout=subprocess.PIPE)

to:

s = subprocess.Popen([EXE,files,'command'],shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE)

Answered By: Daan Wiltenburg

Answer 3

Use this function to get the command’s output instead. Works with -F and -w option:

import subprocess
def popen(cmd: str) -> str:
    """For pyinstaller -w"""
    startupinfo = subprocess.STARTUPINFO()
    startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
    process = subprocess.Popen(cmd,startupinfo=startupinfo, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE)
    return decode_utf8_fixed(process.stdout.read())

Answered By: TheClockTwister

Answer 4

I was getting the error
[WinError 6] The handle is invalid
when running the line

data = subprocess.check_output(['netsh', 'wlan', 'show', 'profiles']).decode('utf-8').split('n')

This solved it for me:
https://stackoverflow.com/a/43606682/12668094

Answered By: Ferris

Answer 5

After tinkering with some of the solutions from this and other threads, found another option, Windows-specific, but works with or without pyinstaller (windowed or console):

if you don’t care about capturing the output of the process and want to run it in a separate console window, allowing the user to interact with it, and wait until it finishes, you can do this:

  import subprocess
  def popen(cmd):
      args = {'stdin' : subprocess.PIPE,
              'stderr': subprocess.PIPE,
              'stdout': subprocess.PIPE,
              'env'   : os.environ}
      process = subprocess.Popen(['start','cmd','/C'] + cmd, close_fds=True, shell=True, **args)
      return process

  def run_subproc(args):
      '''helper method to run a subprocess in a separate console window'''
      p = popen(args)
      output, err = p.communicate() # <- this is the key line to wait for process completion
      status = p.wait()             # <- doesn't actually wait if 'start' used

  if __name__=='__main__':
      run_subproc(['program.exe','arg1','arg2'])

Answered By: Dmytro Bugayev

subprocess seems not working in pyinstaller exe file

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