errno
– system error codes
This module implements a subset of the corresponding CPython module,
as described below. For more information, refer to the original
CPython documentation: errno
.
This module provides access to symbolic error codes for OSError
exception.
The codes available may vary per CircuitPython build.
Constants
- EEXIST, EAGAIN, etc.
Error codes, based on ANSI C/POSIX standard. All error codes start with “E”. Errors are usually accessible as
exc.errno
whereexc
is an instance ofOSError
. Usage example:try: os.mkdir("my_dir") except OSError as exc: if exc.errno == errno.EEXIST: print("Directory already exists")
- errno.errorcode
Dictionary mapping numeric error codes to strings with symbolic error code (see above):
>>> print(errno.errorcode[errno.EEXIST]) EEXIST