Python内置模块：pprint

>>> import pprint
>>> type(pprint)
<class 'module'>
>>> dir(pprint)
['PrettyPrinter', '_StringIO', '__all__', '__builtins__', '__cached__', '__doc__', '__file__', '__loader__', '__name__', '__package__', '__spec__', '_builtin_scalars', '_collections', '_perfcheck', '_recursion', '_safe_key', '_safe_repr', '_safe_tuple', '_sys', '_types', '_wrap_bytes_repr', 'isreadable', 'isrecursive', 'pformat', 'pp', 'pprint', 're', 'saferepr']
>>> pprint.__file__
'C:\\Python38\\lib\\pprint.py'
>>> import sys
>>> pprint.pprint(sys.path)
['',
'C:\\Python38\\python38.zip',
'C:\\Python38\\DLLs',
'C:\\Python38\\lib',
'C:\\Python38',
'C:\\Python38\\lib\\site-packages']
>>>