/Python/Add multiple columns to dataframe if not exist pandas

Add multiple columns to dataframe if not exist pandas

cols = ['B','C','D']

df = df.reindex(df.columns.union(cols, sort=False), axis=1, fill_value=0)
print (df)
   A  B  C  D
0  1  2  3  0
1  4  4  5  0
2  1  2  3  0
3  4  4  6  0

Source: stackoverflow.com

Similar codes

0 vote349 views1 answer
Django from
Python
5 votes330 views3 answers
Open mat python
Python
14 votes321 views2 answers
You-tube
Python
0 vote339 views1 answer
Shared a local host django
Python
0 vote363 views1 answer
Hackerrank python solutions
Python
0 vote345 views1 answer
Python lane angle detection
Python
0 vote326 views1 answer
Python How To Convert a String to Variable Name
Python
0 vote396 views1 answer
Delete multiple dataframes at once in python
Python
0 vote325 views1 answer
Pandan jaya lrt
Python
6 votes352 views1 answer
Print url selenium python
Python