增加python文档

web/python-docs/_sources/library/keyword.rst.txt

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+:mod:`keyword` --- Testing for Python keywords
+==============================================
+
+.. module:: keyword
+   :synopsis: Test whether a string is a keyword in Python.
+
+**Source code:** :source:`Lib/keyword.py`
+
+--------------
+
+This module allows a Python program to determine if a string is a
+:ref:`keyword <keywords>`.
+
+
+.. function:: iskeyword(s)
+
+   Return ``True`` if *s* is a Python :ref:`keyword <keywords>`.
+
+
+.. data:: kwlist
+
+   Sequence containing all the :ref:`keywords <keywords>` defined for the
+   interpreter.  If any keywords are defined to only be active when particular
+   :mod:`__future__` statements are in effect, these will be included as well.