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 linux/include/errno.h, which should be all-inclusive.
errno.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 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:
errno.EPERM Operation not permitted. This error is mapped to the exception PermissionError.
errno.ENOENT No such file or directory. This error is mapped to the exception FileNotFoundError.
errno.ESRCH No such process. This error is mapped to the exception ProcessLookupError.
errno.EINTR Interrupted system call. This error is mapped to the exception InterruptedError.
errno.EIO I/O error
errno.ENXIO No such device or address
errno.E2BIG Arg list too long
errno.ENOEXEC Exec format error
errno.EBADF Bad file number
errno.ECHILD No child processes. This error is mapped to the exception ChildProcessError.
errno.EAGAIN Try again. This error is mapped to the exception BlockingIOError.
errno.ENOMEM Out of memory
errno.EACCES Permission denied. This error is mapped to the exception PermissionError.
errno.EFAULT Bad address
errno.ENOTBLK Block device required
errno.EBUSY Device or resource busy
errno.EEXIST File exists. This error is mapped to the exception FileExistsError.
errno.EXDEV Cross-device link
errno.ENODEV No such device
errno.ENOTDIR Not a directory. This error is mapped to the exception NotADirectoryError.
errno.EISDIR Is a directory. This error is mapped to the exception IsADirectoryError.
errno.EINVAL Invalid argument
errno.ENFILE File table overflow
errno.EMFILE Too many open files
errno.ENOTTY Not a typewriter
errno.ETXTBSY Text file busy
errno.EFBIG File too large
errno.ENOSPC No space left on device
errno.ESPIPE Illegal seek
errno.EROFS Read-only file system
errno.EMLINK Too many links
errno.EPIPE Broken pipe. This error is mapped to the exception BrokenPipeError.
errno.EDOM Math argument out of domain of func
errno.ERANGE Math result not representable
errno.EDEADLK Resource deadlock would occur
errno.ENAMETOOLONG File name too long
errno.ENOLCK No record locks available
errno.ENOSYS Function not implemented
errno.ENOTEMPTY Directory not empty
errno.ELOOP Too many symbolic links encountered
errno.EWOULDBLOCK Operation would block. This error is mapped to the exception BlockingIOError.
errno.ENOMSG No message of desired type
errno.EIDRM Identifier removed
errno.ECHRNG Channel number out of range
errno.EL2NSYNC Level 2 not synchronized
errno.EL3HLT Level 3 halted
errno.EL3RST Level 3 reset
errno.ELNRNG Link number out of range
errno.EUNATCH Protocol driver not attached
errno.ENOCSI No CSI structure available
errno.EL2HLT Level 2 halted
errno.EBADE Invalid exchange
errno.EBADR Invalid request descriptor
errno.EXFULL Exchange full
errno.ENOANO No anode
errno.EBADRQC Invalid request code
errno.EBADSLT Invalid slot
errno.EDEADLOCK File locking deadlock error
errno.EBFONT Bad font file format
errno.ENOSTR Device not a stream
errno.ENODATA No data available
errno.ETIME Timer expired
errno.ENOSR Out of streams resources
errno.ENONET Machine is not on the network
errno.ENOPKG Package not installed
errno.EREMOTE Object is remote
errno.ENOLINK Link has been severed
errno.EADV Advertise error
errno.ESRMNT Srmount error
errno.ECOMM Communication error on send
errno.EPROTO Protocol error
errno.EMULTIHOP Multihop attempted
errno.EDOTDOT RFS specific error
errno.EBADMSG Not a data message
errno.EOVERFLOW Value too large for defined data type
errno.ENOTUNIQ Name not unique on network
errno.EBADFD File descriptor in bad state
errno.EREMCHG Remote address changed
errno.ELIBACC Can not access a needed shared library
errno.ELIBBAD Accessing a corrupted shared library
errno.ELIBSCN .lib section in a.out corrupted
errno.ELIBMAX Attempting to link in too many shared libraries
errno.ELIBEXEC Cannot exec a shared library directly
errno.EILSEQ Illegal byte sequence
errno.ERESTART Interrupted system call should be restarted
errno.ESTRPIPE Streams pipe error
errno.EUSERS Too many users
errno.ENOTSOCK Socket operation on non-socket
errno.EDESTADDRREQ Destination address required
errno.EMSGSIZE Message too long
errno.EPROTOTYPE Protocol wrong type for socket
errno.ENOPROTOOPT Protocol not available
errno.EPROTONOSUPPORT Protocol not supported
errno.ESOCKTNOSUPPORT Socket type not supported
errno.EOPNOTSUPP Operation not supported on transport endpoint
errno.ENOTSUP Operation not supported
New in version 3.2.
errno.EPFNOSUPPORT Protocol family not supported
errno.EAFNOSUPPORT Address family not supported by protocol
errno.EADDRINUSE Address already in use
errno.EADDRNOTAVAIL Cannot assign requested address
errno.ENETDOWN Network is down
errno.ENETUNREACH Network is unreachable
errno.ENETRESET Network dropped connection because of reset
errno.ECONNABORTED Software caused connection abort. This error is mapped to the exception ConnectionAbortedError.
errno.ECONNRESET Connection reset by peer. This error is mapped to the exception ConnectionResetError.
errno.ENOBUFS No buffer space available
errno.EISCONN Transport endpoint is already connected
errno.ENOTCONN Transport endpoint is not connected
errno.ESHUTDOWN Cannot send after transport endpoint shutdown. This error is mapped to the exception BrokenPipeError.
errno.ETOOMANYREFS Too many references: cannot splice
errno.ETIMEDOUT Connection timed out. This error is mapped to the exception TimeoutError.
errno.ECONNREFUSED Connection refused. This error is mapped to the exception ConnectionRefusedError.
errno.EHOSTDOWN Host is down
errno.EHOSTUNREACH No route to host
errno.EALREADY Operation already in progress. This error is mapped to the exception BlockingIOError.
errno.EINPROGRESS Operation now in progress. This error is mapped to the exception BlockingIOError.
errno.ESTALE Stale NFS file handle
errno.EUCLEAN Structure needs cleaning
errno.ENOTNAM Not a XENIX named type file
errno.ENAVAIL No XENIX semaphores available
errno.EISNAM Is a named type file
errno.EREMOTEIO Remote I/O error
errno.EDQUOT Quota exceeded
errno.EQFULL Interface output queue is full
New in version 3.11.
errno.ENOTCAPABLE Capabilities insufficient. This error is mapped to the exception PermissionError.
Availability: WASI, FreeBSD
New in version 3.11.1.
errno.ECANCELED Operation canceled
New in version 3.2.
errno.EOWNERDEAD Owner died
New in version 3.2.
errno.ENOTRECOVERABLE State not recoverable
New in version 3.2.
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