Warning:

To protect the digital assets of creators and enhance system security and stability, the CyberBrick Multi-Function Core Board does not support firmware flashing with any third-party tools! If you need to restore the Multi-Function Core Board to its factory state, please wait for the official recovery tool to be released by CyberBrick. If you proceed to flash the firmware using third-party tools, the firmware of the Multi-Function Core Board will be permanently damaged and cannot be recovered. CyberBrick will not be responsible for any consequences resulting from such operations.

This documentation is adapted from the official MicroPython project. The CyberBrick team has extended the source code with custom interfaces and features to our hardware and application needs.

In addition to these enhancements, certain built-in MicroPython interfaces have been intentionally disabled to protect the system's integrity, and ensure the overall security and reliability of the device. This also facilitates content protection for creators' intellectual property, where applicable.

Portions of the content are derived from the official MicroPython documentation and have been included here under its open-source license to provide users with a consistent and enriched development experience tailored to the CyberBrick platform.

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. A particular inventory of codes depends on MicroPython port.

Constants

EEXIST, EAGAIN, etc.

Error codes, based on ANSI C/POSIX standard. All error codes start with “E”. As mentioned above, inventory of the codes depends on MicroPython port. Errors are usually accessible as exc.errno where 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