check pandas variable type

[cools0607]

I am trying to check variable's data type is list or dataframe.
When I got type(df_c) is Out[155]: pandas.core.frame.DataFrame.
Checking it again by type(df_c) == 'pandas.core.frame.DataFrame', it showed False, not True. <-- I think it should print "True" rather than "False".

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import pandas as pd   c=[1,2,3]   df_c=pd.DataFrame(c)   type(df_c) Out[155]: pandas.core.frame.DataFrame   type(df_c) == 'pandas.core.frame.DataFrame' Out[156]: False

[buran]

you compare type of the object with str object - that's why it's false.
As per the docs and also PEP8 recommendation, the isinstance() built-in function is recommended for testing the type of an object, because it takes subclasses into account.

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import pandas as pd    spam = [1,2,3] df = pd.DataFrame(spam)   # better use isinstance() print(isinstance(df, pd.DataFrame)) print(isinstance(spam, list))

[cools0607]

Oh! I just got a lesson by isinstance this function.
Thank for your assistance.

you compare type of the object with str object - that's why it's false.
As per the docs and also PEP8 recommendation, the isinstance() built-in function is recommended for testing the type of an object, because it takes subclasses into account.

1 2 3 4 5 6 7 8

import pandas as pd    spam = [1,2,3] df = pd.DataFrame(spam)   # better use isinstance() print(isinstance(df, pd.DataFrame)) print(isinstance(spam, list))

[buran]

just for brevity, although not recommended using type will work like this

1	print(type(df_c) == pd.DataFrame)