I have a pandas data frame that contains 2 columns W(number of Wins) and L(number of Losses). I would like to eliminate all rows of data that have a value of 0 for both W and L.
pitching_df.groupby('playerID')['W', 'L'].sum()
playerID W L
aardsda01 2 5
aasedo01 3 8
abbotpa01 0 0
abernte02 8 19
You can try
df[df[['W', 'L']].ne(0).all(1)]
playerID W L
0 aardsda01 2 5
1 aasedo01 3 8
3 abernte02 8 19