pandas iterate over rows and columns

Iterate over rows

1. iterrows

for i,r in df_train.iterrows():
    print(r['company'])

3. itertuples (fast)

for r in df_train.itertuples():
    print(getattr(r, "company"))
    break

Iterate over columns

1. iteritems

for i, r in df_train.iteritems():
    print(i, r)