how to search character plus using pandas.Series.str.contains

Question

How do I search the character \'+\' using \"pandas.Series.str.contains\" in a pandas dataframe column. I tried

df_noplus = df[df[\'column1\'].str.contains(\'+\'         


        

Answer 1

Please use backslash berofe plus:

df = pd.DataFrame({'a': ['+1','+2','-4']})

df['a'].str.contains('\+')

result:

0     True
1     True
2    False
Name: a, dtype: bool