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✏️ Editing: errno.rst.txt

:mod:`errno` --- Standard errno system symbols
==============================================

.. module:: errno
   :synopsis: Standard errno system symbols.

This module makes available standard ``errno`` system symbols. The value of each
symbol is the corresponding integer value. The names and descriptions are
borrowed from :file:`linux/include/errno.h`, which should be pretty
all-inclusive.

.. data:: errorcode

Dictionary providing a mapping from the errno value to the string name in the
   underlying system.  For instance, ``errno.errorcode[errno.EPERM]`` maps to
   ``'EPERM'``.

To translate a numeric error code to an error message, use :func:`os.strerror`.

Of the following list, symbols that are not used on the current platform are not
defined by the module.  The specific list of defined symbols is available as
``errno.errorcode.keys()``.  Symbols available can include:

.. data:: EPERM

Operation not permitted

.. data:: ENOENT

No such file or directory

.. data:: ESRCH

No such process

.. data:: EINTR

Interrupted system call

.. data:: EIO

I/O error

.. data:: ENXIO

No such device or address

.. data:: E2BIG

Arg list too long

.. data:: ENOEXEC

Exec format error

.. data:: EBADF

Bad file number

.. data:: ECHILD

No child processes

.. data:: EAGAIN

Try again

.. data:: ENOMEM

Out of memory

.. data:: EACCES

Permission denied

.. data:: EFAULT

Bad address

.. data:: ENOTBLK

Block device required

.. data:: EBUSY

Device or resource busy

.. data:: EEXIST

File exists

.. data:: EXDEV

Cross-device link

.. data:: ENODEV

No such device

.. data:: ENOTDIR

Not a directory

.. data:: EISDIR

Is a directory

.. data:: EINVAL

Invalid argument

.. data:: ENFILE

File table overflow

.. data:: EMFILE

Too many open files

.. data:: ENOTTY

Not a typewriter

.. data:: ETXTBSY

Text file busy

.. data:: EFBIG

File too large

.. data:: ENOSPC

No space left on device

.. data:: ESPIPE

Illegal seek

.. data:: EROFS

Read-only file system

.. data:: EMLINK

Too many links

.. data:: EPIPE

Broken pipe

.. data:: EDOM

Math argument out of domain of func

.. data:: ERANGE

Math result not representable

.. data:: EDEADLK

Resource deadlock would occur

.. data:: ENAMETOOLONG

File name too long

.. data:: ENOLCK

No record locks available

.. data:: ENOSYS

Function not implemented

.. data:: ENOTEMPTY

Directory not empty

.. data:: ELOOP

Too many symbolic links encountered

.. data:: EWOULDBLOCK

Operation would block

.. data:: ENOMSG

No message of desired type

.. data:: EIDRM

Identifier removed

.. data:: ECHRNG

Channel number out of range

.. data:: EL2NSYNC

Level 2 not synchronized

.. data:: EL3HLT

Level 3 halted

.. data:: EL3RST

Level 3 reset

.. data:: ELNRNG

Link number out of range

.. data:: EUNATCH

Protocol driver not attached

.. data:: ENOCSI

No CSI structure available

.. data:: EL2HLT

Level 2 halted

.. data:: EBADE

Invalid exchange

.. data:: EBADR

Invalid request descriptor

.. data:: EXFULL

Exchange full

.. data:: ENOANO

No anode

.. data:: EBADRQC

Invalid request code

.. data:: EBADSLT

Invalid slot

.. data:: EDEADLOCK

File locking deadlock error

.. data:: EBFONT

Bad font file format

.. data:: ENOSTR

Device not a stream

.. data:: ENODATA

No data available

.. data:: ETIME

Timer expired

.. data:: ENOSR

Out of streams resources

.. data:: ENONET

Machine is not on the network

.. data:: ENOPKG

Package not installed

.. data:: EREMOTE

Object is remote

.. data:: ENOLINK

Link has been severed

.. data:: EADV

Advertise error

.. data:: ESRMNT

Srmount error

.. data:: ECOMM

Communication error on send

.. data:: EPROTO

Protocol error

.. data:: EMULTIHOP

Multihop attempted

.. data:: EDOTDOT

RFS specific error

.. data:: EBADMSG

Not a data message

.. data:: EOVERFLOW

Value too large for defined data type

.. data:: ENOTUNIQ

Name not unique on network

.. data:: EBADFD

File descriptor in bad state

.. data:: EREMCHG

Remote address changed

.. data:: ELIBACC

Can not access a needed shared library

.. data:: ELIBBAD

Accessing a corrupted shared library

.. data:: ELIBSCN

.lib section in a.out corrupted

.. data:: ELIBMAX

Attempting to link in too many shared libraries

.. data:: ELIBEXEC

Cannot exec a shared library directly

.. data:: EILSEQ

Illegal byte sequence

.. data:: ERESTART

Interrupted system call should be restarted

.. data:: ESTRPIPE

Streams pipe error

.. data:: EUSERS

Too many users

.. data:: ENOTSOCK

Socket operation on non-socket

.. data:: EDESTADDRREQ

Destination address required

.. data:: EMSGSIZE

Message too long

.. data:: EPROTOTYPE

Protocol wrong type for socket

.. data:: ENOPROTOOPT

Protocol not available

.. data:: EPROTONOSUPPORT

Protocol not supported

.. data:: ESOCKTNOSUPPORT

Socket type not supported

.. data:: EOPNOTSUPP

Operation not supported on transport endpoint

.. data:: EPFNOSUPPORT

Protocol family not supported

.. data:: EAFNOSUPPORT

Address family not supported by protocol

.. data:: EADDRINUSE

Address already in use

.. data:: EADDRNOTAVAIL

Cannot assign requested address

.. data:: ENETDOWN

Network is down

.. data:: ENETUNREACH

Network is unreachable

.. data:: ENETRESET

Network dropped connection because of reset

.. data:: ECONNABORTED

Software caused connection abort

.. data:: ECONNRESET

Connection reset by peer

.. data:: ENOBUFS

No buffer space available

.. data:: EISCONN

Transport endpoint is already connected

.. data:: ENOTCONN

Transport endpoint is not connected

.. data:: ESHUTDOWN

Cannot send after transport endpoint shutdown

.. data:: ETOOMANYREFS

Too many references: cannot splice

.. data:: ETIMEDOUT

Connection timed out

.. data:: ECONNREFUSED

Connection refused

.. data:: EHOSTDOWN

Host is down

.. data:: EHOSTUNREACH

No route to host

.. data:: EALREADY

Operation already in progress

.. data:: EINPROGRESS

Operation now in progress

.. data:: ESTALE

Stale NFS file handle

.. data:: EUCLEAN

Structure needs cleaning

.. data:: ENOTNAM

Not a XENIX named type file

.. data:: ENAVAIL

No XENIX semaphores available

.. data:: EISNAM

Is a named type file

.. data:: EREMOTEIO

Remote I/O error

.. data:: EDQUOT

Quota exceeded

MR SKB