/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

9 votes293 views1 answer
How to save image opencv
Python
0 vote277 views3 answers
Click on button tag with only class selenium python
Python
1 vote272 views1 answer
Python convert list of lists of strings to int
Python
0 vote252 views1 answer
How to let someone select a folder in python
Python
0 vote272 views1 answer
Drawing diff circles with random radius in diff positions .
Python
0 vote259 views1 answer
Python tkinter get image size
Python
0 vote248 views1 answer
Python recursion print statement
Python
2 votes247 views1 answer
Find element by title selenium python
Python
10 votes274 views3 answers
How to make a rect in pygame
Python
1 vote243 views1 answer
Update label text after pressing a button in Tkinter
Python