repeating the rows of a data frame

Question

I\'m trying repeat the rows of a dataframe. Here\'s my original data:

pd.DataFrame([
        {\'col1\': 1, \'col2\': 11, \'col3\': [1, 2] },
        {\'col1\         


        

Answer 1

You can also use reindex and index.repeat

df = df.reindex(df.index.repeat(df.col3.apply(len)))

df = df.reset_index(drop=True).drop("col3", axis=1)
# To reset index and drop col3 

# Output:

   col1  col2
0   1     11
1   1     11
2   2     22
3   2     22
4   2     22
5   3     33
6   4     44
7   4     44
8   4     44
9   4     44