查看“Python的帮助与调试”的源代码

[[文件:Python file.gif|缩略图]]

*在python中直接输入debug

*run -d test.py

*程序中设置断点，debug
:pdb.set_trace()

*重新载入程序
:imp.reload(myfun)

*函数locals(),vars(),globals()
:python中检测某个变量是否有定义
# 'var'   in   locals().keys()
# 'var'   in   dir()
# 
  try: 
    print   var
  except   NameError: 
    print   'var   not   defined'

==帮助==
*help(copy.copy)  #def 之后'''帮助'''
*print(copy.__doc__)
*print(copy.__file__) #源文件地址
*print?
*import module之后运行dir(module)

===如何自己写帮助===

 def average(a, b):
    """
    Return the average value (arithmetic mean) of two numbers.

    Parameters
    ----------
    a : numeric
        A number to average.
    b : numeric
        Another number to average.

    Returns
    -------
    result : numeric
        The average of a and b, computed using ``0.5 * (a + b)``.

    Example
    -------
    >>> average(5, 10)
    7.5

    """