[Python] Find available methods and help in REPL

For example your want to know what methods is available in Python for String, you can do:

Dir ("xxx")

Output:

>>> dir ("string")['__add__','__class__','__contains__','__delattr__','__dir__','__doc__','__eq__','__format__','__ge__','__getattribute__','__getitem__','__getnewargs__','__gt__','__hash__','__init__','__init_subclass__','__iter__','__le__','__len__','__lt__','__mod__','__mul__','__ne__','__new__','__reduce__','__reduce_ex__','__repr__','__rmod__','__rmul__','__setattr__','__sizeof__','__str__','__subclasshook__','Capitalize','Casefold','Center','Count','encode','EndsWith','Expandtabs','Find','format','Format_map','Index','isalnum','Isalpha','Isdecimal','IsDigit','Isidentifier','Islower','IsNumeric','isprintable','isspace','Istitle','Isupper','Join','Ljust','Lower','Lstrip','Maketrans','Partition','Replace','RFind','Rindex','Rjust','rpartition','Rsplit','Rstrip','Split','Splitlines','StartsWith','Strip','Swapcase','title','Translate','Upper','Zfill']

Now for the example, we want to the see if ' swapcase ' method:

Help ("foo". Swapcase)

It'll show example and description about the method, which is very useful

[Python] Find available methods and help in REPL