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df.set_index('id', inplace=True)
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cols = [1,2,4,5,12]
df.drop(df.columns[cols],axis=1,inplace=True)
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>>> df.reset_index(drop=True)
class max_speed
0 bird 389.0
1 bird 24.0
2 mammal 80.5
3 mammal NaN