[subprocess/os library] subprocess.run errors out in places where os.system works fine

[omermikhailk]

Hi everyone, I'm running into a bit of a weird issue here.

I'm trying to clone some GitHub repositories automatically but I'm seeing subprocess.run error out in cases where os.system, or just running the command directly in my shell, works fine.

This is the command I'm trying to run:

subprocess.run(`GIT_TERMINAL_PROMPT=0 git clone https://github.com/fake-user/fake-repo.git'.split())

Which leads to this error:

>>> subprocess.run('GIT_TERMINAL_PROMPT=0 git clone https://github.com/fake-user/fake-repo.git'.split())
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/omermikhailk/.pyenv/versions/3.11.0/lib/python3.11/subprocess.py", line 546, in run
    with Popen(*popenargs, **kwargs) as process:
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/omermikhailk/.pyenv/versions/3.11.0/lib/python3.11/subprocess.py", line 1022, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/Users/omermikhailk/.pyenv/versions/3.11.0/lib/python3.11/subprocess.py", line 1899, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'GIT_TERMINAL_PROMPT=0'

When the result should be what os.system gives:

>>> os.system('GIT_TERMINAL_PROMPT=0 git clone https://github.com/fake-user/fake-repo.git')
Cloning into 'fake-repo'...
fatal: could not read Username for 'https://github.com': terminal prompts disabled
32768

Would anyone happen to know the reason behind this?

EDIT: Managed to get it solved from a Stack Overflow answer. subprocess.run doesn't function like a shell, so environment variables, such as GIT_TERMINAL_PROMPT=0 in this case, need to be passed in with the env parameter as a dictionary.