o Ni@sTddlZddlZddlmZddlmZddlmZddlm Z GdddeZdS) N)Optional)AcquireReturnProxy)FileLock) PathOrStrcsLeZdZdZd dededdffdd Z  ddeeffd d Z Z S)ra This is just a subclass of the `FileLock` class from the `filelock` library, except that it adds an additional argument to the `__init__` method: `read_only_ok`. By default this flag is `False`, which an exception will be thrown when a lock can't be acquired due to lack of write permissions. But if this flag is set to `True`, a warning will be emitted instead of an error when the lock already exists but the lock can't be acquired because write access is blocked. F lock_file read_only_okreturnNcstjt||d||_dS)N)timeout)super__init__str _read_only_ok)selfrr r  __class__I/home/ubuntu/.local/lib/python3.10/site-packages/cached_path/file_lock.pyr s zFileLock.__init__皙?c szz tjd||d|WSty<}z#|jdvrtj|jr7|jr7t d|jdt WYd}~dSd}~ww)N)r poll_interval)r z-Lacking permissions required to obtain lock 'zT'. Race conditions are possible if other processes are writing to the same resource.r) r acquireOSErrorerrnoospathisfilerrwarningswarn UserWarning)rr rkwargserrrrrrs  zFileLock.acquire)rF)Nr) __name__ __module__ __qualname____doc__rboolr rrr __classcell__rrrrr s r) rrtypingrfilelockrr _FileLockcommonrrrrrs