python - How to create a new `DataFrame` with values obtained from another? -


i have dataframe df1:

  |company name|contact| representatives  |   | xyz-corp   |adam   | mark, john, stacy |

i want create new dataframe df2 looks this:

  | company name | contact  |   | xyz-corp     | adam     |   | xyz-corp     | mark     |   | xyz-corp     | john     |   | xyz-corp     | stacy    |

how do this? want split values representatives column , add new rows.

i can use double loop, 1 iterate through rows , iterate through representative names , add new dataframe. there better way this?

df.set_index('company name', inplace=true) df = pd.concat([df.contact, df.loc[:,'representatives'].str.split(',', expand=true).stack().reset_index(-1, drop=true)]).reset_index() df.rename(columns={0: 'contact'}, inplace=true)     company name  contact 0   xyz-corp     adam    1   xyz-corp        mark 2   xyz-corp        john 3   xyz-corp      stacy

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