Why is the subprocess.Popen argument length limit smaller than what the OS reports?

Question

I am running Python 3.4.3 on Linux 3.16.0. I want to use subprocess.Popen to run a command with a long single argument (a complex Bash invocation), roughly 200K

Answer 1

This other question is similar to yours, but for Windows. As in that scenario, you can bypass any shell limitations by avoiding the shell=True option.

Otherwise, you can provide a list of files to subprocess.Popen() as done in that scenario, and as suggested by @Aaron Digulla.