`.grip/settings.py` for https://github.com/joeyespo/grip that populates USERNAME and PASSWORD from invoking `git credential fill` with I/O through a pipe. See https://blog.hcf.dev/article/2021-07-27-grip.

settings.py

# .grip/settings.py

# Uses "git credential fill" to populate USERNAME and PASSWORD

def git_credential_fill():
    import subprocess
    argv = ["git", "credential", "fill"]
    process = subprocess.Popen(argv, text = True, stdin = subprocess.PIPE, stdout = subprocess.PIPE, stderr = subprocess.PIPE)
    output = process.communicate(input = "protocol=https\nhost=github.com\n")[0].strip()
    map = dict(item.split("=") for item in output.splitlines())

    return (map["username"], map["password"])

(USERNAME, PASSWORD) = git_credential_fill()