In [3]: df = pd.DataFrame([['GD', 'GX', 'FJ'], ['SD', 'SX', 'BJ'], ['HN', 'HB' ...: , 'AH'], ['HEN', 'HEN', 'HLJ'], ['SH', 'TJ', 'CQ']], columns=['p1', 'p2 ...: ', 'p3']) In [4]: df Out[4]: p1 p2 p3 0 GD GX FJ 1 SD SX BJ 2 HN HB AH 3 HEN HEN HLJ 4 SH TJ CQ
In [8]: df[df.p1.isin(['GD', 'HN'])] Out[8]: p1 p2 p3 0 GD GX FJ 2 HN HB AH
In [9]: ex_list = list(df.p1)
In [10]: ex_list.remove('GD')
In [11]: ex_list.remove('HN')
In [12]: ex_list
Out[12]: ['SD', 'HEN', 'SH']
In [13]: df[df.p1.isin(ex_list)]
Out[13]:
p1 p2 p3
1 SD SX BJ
3 HEN HEN HLJ
4 SH TJ CQ
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