Function _create_carefully

Lib/mailbox.py:2184–2186

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."""
    return open(path, 'xb+')

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