: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
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. This error is mapped to the exception
:exc:`PermissionError`.
.. data:: ENOENT
No such file or directory. This error is mapped to the exception
:exc:`FileNotFoundError`.
.. data:: ESRCH
No such process. This error is mapped to the exception
:exc:`ProcessLookupError`.
.. data:: EINTR
Interrupted system call. This error is mapped to the exception
:exc:`InterruptedError`.
.. 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. This error is mapped to the exception
:exc:`ChildProcessError`.
.. data:: EAGAIN
Try again. This error is mapped to the exception :exc:`BlockingIOError`.
.. data:: ENOMEM
Out of memory
.. data:: EACCES
Permission denied. This error is mapped to the exception
:exc:`PermissionError`.
.. data:: EFAULT
Bad address
.. data:: ENOTBLK
Block device required
.. data:: EBUSY
Device or resource busy
.. data:: EEXIST
File exists. This error is mapped to the exception
:exc:`FileExistsError`.
.. data:: EXDEV
Cross-device link
.. data:: ENODEV
No such device
.. data:: ENOTDIR
Not a directory. This error is mapped to the exception
:exc:`NotADirectoryError`.
.. data:: EISDIR
Is a directory. This error is mapped to the exception
:exc:`IsADirectoryError`.
.. 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. This error is mapped to the exception
:exc:`BrokenPipeError`.
.. 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. This error is mapped to the exception
:exc:`BlockingIOError`.
.. 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:: ENOTSUP
Operation not supported
.. versionadded:: 3.2
.. 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. This error is mapped to the
exception :exc:`ConnectionAbortedError`.
.. data:: ECONNRESET
Connection reset by peer. This error is mapped to the exception
:exc:`ConnectionResetError`.
.. 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. This error is mapped
to the exception :exc:`BrokenPipeError`.
.. data:: ETOOMANYREFS
Too many references: cannot splice
.. data:: ETIMEDOUT
Connection timed out. This error is mapped to the exception
:exc:`TimeoutError`.
.. data:: ECONNREFUSED
Connection refused. This error is mapped to the exception
:exc:`ConnectionRefusedError`.
.. data:: EHOSTDOWN
Host is down
.. data:: EHOSTUNREACH
No route to host
.. data:: EALREADY
Operation already in progress. This error is mapped to the
exception :exc:`BlockingIOError`.
.. data:: EINPROGRESS
Operation now in progress. This error is mapped to the exception
:exc:`BlockingIOError`.
.. 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
.. data:: EQFULL
Interface output queue is full
.. versionadded:: 3.11
.. data:: ENOTCAPABLE
Capabilities insufficient. This error is mapped to the exception
:exc:`PermissionError`.
.. availability:: WASI, FreeBSD
.. versionadded:: 3.11.1
.. data:: ECANCELED
Operation canceled
.. versionadded:: 3.2
.. data:: EOWNERDEAD
Owner died
.. versionadded:: 3.2
.. data:: ENOTRECOVERABLE
State not recoverable
.. versionadded:: 3.2
Codebase Browser
cpython