python - Why does type checking not work for what type returns? -


i tried test:

if type(model_lines) == 'str':     turn list using split

based on:

in [196]: type('a') out[196]: str

however, x, string:

in [193]: if type(x) == 'str':     print 'string'    .....:    in [195]: if type(x) == type('a'):     print 'string'    .....:      string

i curious why cannot use output check types, seems cleaner , faster read. type return won't allow checking return display?

because, type() returns class object, not string name of class , if below, work -

>>> if type('abcd') == str: ...     print("blah") ... blah >>> type('abcd') <class 'str'>

as note above, checked return of type('abcd') against str class , not string 'str' .

if want string representation of class, use tpye(<something>).__name__ , string name of class, though not needed case, information. example -

>>> type('abcd').__name__ 'str'

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