11

对于特定的异常类型（比如说 IOError），我如何提取 Errno 的完整列表和如下描述：

Errno 2：没有这样的文件或目录

Errno 122：超出磁盘配额

...

4

5 回答 5

19

由于错误代码因平台而异，并且用户的语言可能不同，因此通常最好以正常方式打印异常。

但是，如果你真的想要这个列表：

import os
import errno

print {i:os.strerror(i) for i in sorted(errno.errorcode)}

打印（在 OS X 上）：

{1: 'Operation not permitted', 2: 'No such file or directory',
 3: 'No such process', 4: 'Interrupted system call',
 5: 'Input/output error', 6: 'Device not configured',
 7: 'Argument list too long', 8: 'Exec format error',
 9: 'Bad file descriptor', 10: 'No child processes',
 11: 'Resource deadlock avoided', 12: 'Cannot allocate memory',
 13: 'Permission denied', 14: 'Bad address', 15: 'Block device required',
 16: 'Resource busy', 17: 'File exists', 18: 'Cross-device link',
 19: 'Operation not supported by device', 20: 'Not a directory',
 21: 'Is a directory', 22: 'Invalid argument',
 23: 'Too many open files in system', 24: 'Too many open files',
 25: 'Inappropriate ioctl for device', 26: 'Text file busy',
 27: 'File too large', 28: 'No space left on device', 29: 'Illegal seek',
 30: 'Read-only file system', 31: 'Too many links', 32: 'Broken pipe',
 33: 'Numerical argument out of domain', 34: 'Result too large',
 35: 'Resource temporarily unavailable', 36: 'Operation now in progress',
 37: 'Operation already in progress', 38: 'Socket operation on non-socket',
 39: 'Destination address required', 40: 'Message too long',
 41: 'Protocol wrong type for socket', 42: 'Protocol not available',
 43: 'Protocol not supported', 44: 'Socket type not supported',
 46: 'Protocol family not supported',
 47: 'Address family not supported by protocol family',
 48: 'Address already in use', 49: "Can't assign requested address",
 50: 'Network is down', 51: 'Network is unreachable',
 52: 'Network dropped connection on reset',
 53: 'Software caused connection abort', 54: 'Connection reset by peer',
 55: 'No buffer space available', 56: 'Socket is already connected',
 57: 'Socket is not connected', 58: "Can't send after socket shutdown",
 59: "Too many references: can't splice", 60: 'Operation timed out',
 61: 'Connection refused', 62: 'Too many levels of symbolic links',
 63: 'File name too long', 64: 'Host is down', 65: 'No route to host',
 66: 'Directory not empty', 68: 'Too many users',
 69: 'Disc quota exceeded', 70: 'Stale NFS file handle',
 71: 'Too many levels of remote in path', 77: 'No locks available',
 78: 'Function not implemented',
 84: 'Value too large to be stored in data type', 90: 'Identifier removed',
 91: 'No message of desired type', 92: 'Illegal byte sequence',
 94: 'Bad message', 95: 'EMULTIHOP (Reserved)',
 96: 'No message available on STREAM', 97: 'ENOLINK (Reserved)',
 98: 'No STREAM resources', 99: 'Not a STREAM', 100: 'Protocol error',
 101: 'STREAM ioctl timeout', 102: 'Operation not supported on socket'}
于 2013-03-08T23:32:19.577 回答
6

正如其他人所说，您应该检查<errno.h>您的系统。

如果你想在 python 中做到这一点：

import errno
print errno.errorcode

输出将是

{1: 'EPERM', 2: 'ENOENT', 3: 'ESRCH', 4: 'EINTR', 5: 'EIO', 6: 'ENXIO', 7: 'E2BIG', 8: 'ENOEXEC', 9: 'EBADF', 10: 'ECHILD', 11: 'EDEADLK', 12: 'ENOMEM', 13: 'EACCES', 14: 'EFAULT', 15: 'ENOTBLK', 16: 'EBUSY', 17: 'EEXIST', 18: 'EXDEV', 19: 'ENODEV', 20: 'ENOTDIR', 21: 'EISDIR', 22: 'EINVAL', 23: 'ENFILE', 24: 'EMFILE', 25: 'ENOTTY', 26: 'ETXTBSY', 27: 'EFBIG', 28: 'ENOSPC', 29: 'ESPIPE', 30: 'EROFS', 31: 'EMLINK', 32: 'EPIPE', 33: 'EDOM', 34: 'ERANGE', 35: 'EAGAIN', 36: 'EINPROGRESS', 37: 'EALREADY', 38: 'ENOTSOCK', 39: 'EDESTADDRREQ', 40: 'EMSGSIZE', 41: 'EPROTOTYPE', 42: 'ENOPROTOOPT', 43: 'EPROTONOSUPPORT', 44: 'ESOCKTNOSUPPORT', 46: 'EPFNOSUPPORT', 47: 'EAFNOSUPPORT', 48: 'EADDRINUSE', 49: 'EADDRNOTAVAIL', 50: 'ENETDOWN', 51: 'ENETUNREACH', 52: 'ENETRESET', 53: 'ECONNABORTED', 54: 'ECONNRESET', 55: 'ENOBUFS', 56: 'EISCONN', 57: 'ENOTCONN', 58: 'ESHUTDOWN', 59: 'ETOOMANYREFS', 60: 'ETIMEDOUT', 61: 'ECONNREFUSED', 62: 'ELOOP', 63: 'ENAMETOOLONG', 64: 'EHOSTDOWN', 65: 'EHOSTUNREACH', 66: 'ENOTEMPTY', 68: 'EUSERS', 69: 'EDQUOT', 70: 'ESTALE', 71: 'EREMOTE', 77: 'ENOLCK', 78: 'ENOSYS', 84: 'EOVERFLOW', 90: 'EIDRM', 91: 'ENOMSG', 92: 'EILSEQ', 94: 'EBADMSG', 95: 'EMULTIHOP', 96: 'ENODATA', 97: 'ENOLINK', 98: 'ENOSR', 99: 'ENOSTR', 100: 'EPROTO', 101: 'ETIME', 102: 'EOPNOTSUPP'}
于 2013-03-08T23:24:41.093 回答
6

我担心那些直接来自标准 C 库，所以你必须在你的系统文档中查找它。（GLibC、微软、UNIX……）

于 2013-03-08T23:20:31.363 回答
4

在您的系统上查找 errno.h。

于 2013-03-08T23:21:33.727 回答
0

谢谢@the-wolf：我不记得常量是从哪里来的（os.strerror），所以决定把它放在这里以备将来参考。

def error_codes():
    from os import strerror as SE
    from errno import errorcode as EC
    for k in EC.keys():
        print("error: [Errno %i] %s [%s]"%(k,SE(k),EC[k]))
        #print("{%3i: %s}"%(k,EC[k]))
    del SE, EC
    try: del k
    except: pass

# Just print it
error_codes()
于 2021-01-23T17:14:35.057 回答