Python中关键字有多少个？

Help on module keyword:

NAME

  keyword - Keywords (from "graminit.c")

FILE

  /usr/lib64/python2.6/keyword.py

DESCRIPTION

  This file is automatically generated; please don't muck it up!

  To update the symbols in this file, 'cd' to the top directory of

  the python source tree after building the interpreter and run:

    python Lib/keyword.py

FUNCTIONS

  iskeyword = __contains__(...)

    x.__contains__(y)  y in x.

DATA

  __all__ = ['iskeyword', 'kwlist']

  kwlist = ['and', 'as', 'assert', 'break', 'class', 'continue', 'def', ...

>>> keyword.kwlist

['and', 'as', 'assert', 'break', 'class', 'continue', 'def', 'del', 'elif', 'else', 'except', 'exec',

'finally', 'for', 'from', 'global', 'if', 'import', 'in', 'is', 'lambda', 'not', 'or', 'pass', 'print',

 'raise', 'return', 'try', 'while', 'with', 'yield']

>>> keyword.iskeyword('and')

True

>>>

>>> keyword.iskeyword('has')

False