Appending a list or series to a pandas DataFrame as a row?

Question

So I have initialized an empty pandas DataFrame and I would like to iteratively append lists (or Series) as rows in this DataFrame. What is the best way of doing this?

Answer 1

Just, create the DataFrame:.

 import pandas as pd

 simple_list=[['a','b']]

 simple_list.append(['e','f'])

 df=pd.DataFrame(simple_list,columns=['col1','col2'])

    col1  col2

0    a      b

1    e      f

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