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import pandas as pd
from pandas import DataFrame
df=DataFrame([['net',2.2],['net','3.3'],
['at','4.4'],['at','5.5']],columns=['a','b'])
print(df)
list_net=df.a[df['a']=='net'].tolist()
print(list_net)
list_net_b=df.b[df['a']=='net'].tolist()
print(list_net_b)
list_at=df.a[df['a']=='at'].tolist()
print(list_at)
list_at_b=df.b[df['a']=='at'].tolist()
print(list_at_b)