Accessing every 1st element of Pandas DataFrame column containing lists

Question

I have a Pandas DataFrame with a column containing lists objects

      A
0   [1,2]
1   [3,4]
2   [8,9] 
3   [2,6]

How can I access the firs

Answer 1

You can use map and a lambda function

df.loc[:, 'new_col'] = df.A.map(lambda x: x[0])

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