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Iterating over rows and columns in Pandas DataFrame

First let's create a data frame with values.

A simple for loop through Pandas DataFrame using index

Important!!

Iterating through pandas dataFrame objects is generally slow. Iteration beats the whole purpose of using DataFrame. It is an anti-pattern and is something you should only do when you have exhausted every other option. It is better look for a List Comprehensions , vectorized solution or DataFrame.apply() method.

Pandas DataFrame loop using list comprehension

Pandas DataFrame loop using DataFrame.apply()



**Other Pandas DataFrame looping methods (DON'T*!)

Using loc()

Using iloc[]

Using iterrows()

Using itertuples()

Using iteritems()










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