Apply function to each cell in DataFrame

You can use applymap() which is concise for your case.

df.applymap(foo_bar)#     A       B       C#0  wow     bar wow bar#1  bar wow wow     bar

Another option is to vectorize your function and then use apply method:

import numpy as npdf.apply(np.vectorize(foo_bar))#     A       B       C#0  wow     bar wow bar#1  bar wow wow     bar

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