python __doc__ 文档说明

摘要: 1.__doc__
2.help()
3.pydoc

一： __doc__使用

1.import sys
print sys.doc

2.In [3]: print sys.getrefcount.doc
getrefcount(object) -> integer

Return the reference count of object. The count returned is generally
one higher than you might expect, because it includes the (temporary)
reference as an argument to getrefcount().

3.In [4]: print(int.doc)
int(x=0) -> int or long
int(x, base=10) -> int or long

Convert a number or string to an integer, or return 0 if no arguments
are given. If x is floating point, the conversion truncates towards zero.
If x is outside the integer range, the function returns a long instead.

If x is not a number or if base is given, then x must be a string or
Unicode object representing an integer literal in the given base. The
literal can be preceded by '+' or '-' and be surrounded by whitespace.
The base defaults to 10. Valid bases are 0 and 2-36. Base 0 means to
interpret the base from the string as an integer literal.
int('0b100', base=0)

二：help
使用help()方法查看
help(int)

三：pydoc
主要演示生存ＨＴＭＬ和浏览器查看