Function _create_carefully

tools/python-3.11.9-amd64/Lib/mailbox.py:2113–2119

Create a file if it doesn't exist and open for reading and writing.

(path)

        os.remove(f.name + '.lock')

def _create_carefully(path):
    """Create a file if it doesn't exist and open for reading and writing."""
    fd = os.open(path, os.O_CREAT | os.O_EXCL | os.O_RDWR, 0o666)
    try:
        return open(path, 'rb+')
    finally:
        os.close(fd)

def _create_temporary(path):
    """Create a temp file based on path and open for reading and writing."""