uerrno – 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.args[0] where exc is an instance of OSError. Usage example:

try:
    uos.mkdir("my_dir")
except OSError as exc:
    if exc.args[0] == uerrno.EEXIST:
        print("Directory already exists")

EPERM = 1

ENOENT = 2

EIO = 5

EBADF = 9

EAGAIN = 11

ENOMEM = 12

EACCES = 13

EEXIST = 17

ENODEV = 19

EISDIR = 21

EINVAL = 22

EOPNOTSUPP = 95

EADDRINUSE = 98

ECONNABORTED = 103

ECONNRESET = 104

ENOBUFS = 105

ENOTCONN = 107

ETIMEDOUT = 110

ECONNREFUSED = 111

EHOSTUNREACH = 113

EALREADY = 114

EINPROGRESS = 115

uerrno.errorcode

Dictionary mapping numeric error codes to strings with symbolic error code (see above):

>>> print(uerrno.errorcode[uerrno.EEXIST])
EEXIST