errno – system error codes — Adafruit CircuitPython 1 documentation (original) (raw)

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. Some codes are not available on the smallest CircuitPython builds, such as SAMD21, for space reasons.

Constants

EEXIST, EAGAIN, etc.

Error codes, based on ANSI C/POSIX standard. All error codes start with “E”. Errors are usually accessible as exc.errnowhere exc is an instance of OSError. 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