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Google App Engine Python Library Support

Many Native C Python modules are disabled with Google App Engine. The Python 2.7 runtime supports more modules than the Python 2.5 runtime. A list of Python modules can be found on Python.org .

C Modules NOT Supported in Python 2.7

The following is a list of those C modules that are not allowed with the Python 2.7 runtime:

  • ctypes
  • sqlite
  • ssl/_ssl
  • fcntl
  • spwd
  • pwd
  • grp
  • syslog
  • select
  • _socket

C Modules Supported in Python 2.5

The following is a list of those C modules that are allowed with the Python 2.5 runtime:

  • array
  • binascii
  • bz2
  • cmath
  • collections
  • crypt
  • cStringIO
  • datetime
  • errno
  • exceptions
  • gc
  • itertools
  • math
  • md5
  • operator
  • posix
  • posixpath
  • pyexpat
  • sha
  • struct
  • sys
  • time
  • timing
  • unicodedata
  • zlib
  • _bisect
  • _codecs
  • _codecs_cn
  • _codecs_hk
  • _codecs_iso2022
  • _codecs_jp
  • _codecs_kr
  • _codecs_tw
  • _csv
  • _elementtree
  • _functools
  • _hashlib
  • _heapq
  • _locale
  • _lsprof
  • _md5
  • _multibytecodec
  • _random
  • _sha
  • _sha256
  • _sha512
  • _sre
  • _struct
  • _types
  • _weakref
  • __main__
The following is a list of modules that are partially enabled:
  • gc
    • 'enable',
    • disable
    • isenabled
    • collect
    • get_debug
    • set_threshold
    • get_threshold
    • get_count
  • os
    • altsep
    • curdir
    • defpath
    • devnull
    • environ
    • error
    • extsep
    • EX_NOHOST
    • EX_NOINPUT
    • EX_NOPERM
    • EX_NOUSER
    • EX_OK
    • EX_OSERR
    • EX_OSFILE
    • EX_PROTOCOL
    • EX_SOFTWARE
    • EX_TEMPFAIL
    • EX_UNAVAILABLE
    • EX_USAGE
    • F_OK
    • getcwd
    • getcwdu
    • getenv
    • listdir
    • lstat
    • name
    • NGROUPS_MAX
    • O_APPEND
    • O_CREAT
    • O_DIRECT
    • O_DIRECTORY
    • O_DSYNC
    • O_EXCL
    • O_LARGEFILE
    • O_NDELAY
    • O_NOCTTY
    • O_NOFOLLOW
    • O_NONBLOCK
    • O_RDONLY
    • O_RDWR
    • O_RSYNC
    • O_SYNC
    • O_TRUNC
    • O_WRONLY
    • pardir
    • path
    • pathsep
    • R_OK
    • SEEK_CUR
    • SEEK_END
    • SEEK_SET
    • sep
    • stat
    • stat_float_times
    • stat_result
    • strerror
    • TMP_MAX
    • urandom
    • walk
    • WCOREDUMP
    • WEXITSTATUS
    • WIFEXITED
    • WIFSIGNALED
    • WIFSTOPPED
    • WNOHANG
    • WSTOPSIG
    • WTERMSIG
    • WUNTRACED
    • W_OK
    • X_OK

The following modules can be imported, but are empty:

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