1、查看所有的關鍵字

>>> help(‘keywords‘)

Here is a list of the Python keywords.  Enter any keyword to get more help.

False               def                 if                  raise
None                del                 import              return
True                elif                in                  try
and                 else                is                  while
as                  except              lambda              with
assert              finally             nonlocal            yield
break               for                 not
class               from                or
continue            global              pass

>>> import keyword
>>> keyword.iskeyword(‘if‘)
True
>>> keyword.kwlist
[‘False‘, ‘None‘, ‘True‘, ‘and‘, ‘as‘, ‘assert‘, ‘break‘, ‘class‘, ‘continue‘,

 ‘def‘, ‘del‘, ‘elif‘, ‘else‘, ‘except‘, ‘finally‘, ‘for‘, ‘from‘, ‘global‘, 

‘if‘, ‘import‘, ‘in‘, ‘is‘, ‘lambda‘, ‘nonlocal‘, ‘not‘, ‘or‘, ‘pass‘, 

‘raise‘, ‘return‘, ‘try‘, ‘while‘, ‘with‘, ‘yield‘]
>>> keyword.iskeyword(‘of‘)
False
>>>

2、查看其它幫助

• help(‘modules‘) # 查看Python所有的modules
• help(‘modules b ‘) # 查看Python所有的modules中包含指定字符串的modules
• help(‘topics‘) # 查看Python中常見的topics
• help(‘os.path‘) # 查看Python標準庫中的module
• help(‘list‘) # 查看Python內置的類型
• heop(‘str.find‘) # 查看Python類型的成員方法
• help(‘open‘) # 查看Python內置函數

Python查看關鍵字和幫助信息