Repeat values in a column n times

Question

I have the following dataframe

 Code 
   1
   3
   4
   5

I want to repeat each code value 5 times so that output is:

 Code 
   1
   1
   1
   1
   1
   3
   3
   3
   3
   3
   4
   4
   4
   4
   4
   5
   5
   5
   5
   5

np.repeat does not seem to work on dataframes

Answer 1

You can repeat the index:

df.loc[df.index.repeat(5)]