Running a process in pythonw with Popen without a console

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I have a program with a GUI that runs an external program through a Popen call:

p = subprocess.Popen("<commands>" , stdout=subprocess.PIPE , stderr=subprocess.PIPE , cwd=os.getcwd())
p.communicate()

But a console pops up, regardless of what I do (I've also tried passing it NUL for the file handle). Is there any way to do that without getting the binary I call to free its console?

pythonw popen console user-interface python
5 Answers

According to Python 2.7 documentation and Python 3.7 documentation, you can influence how Popen creates the process by setting creationflags. In particular, the CREATE_NO_WINDOW flag would be useful to you.

variable = subprocess.Popen(
   "CMD COMMAND", 
   stdout = subprocess.PIPE, creationflags = subprocess.CREATE_NO_WINDOW
)
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