errno.rst 6.65 KB
Newer Older
1 2 3 4 5 6
:mod:`errno` --- Standard errno system symbols
==============================================

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

7
----------------
8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44

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

45 46 47 48
   Interrupted system call.

   .. seealso::
      This error is mapped to the exception :exc:`InterruptedError`.
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639


.. 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