/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

5 votes43 views6 answers
Unable to create process using
Python
-2 votes52 views1 answer
How to make discord.py rewrite bot dm someone
Python
4 votes42 views1 answer
How to check opencv version using python
Python
0 vote44 views1 answer
Pytorch freeze layers
Python
1 vote49 views1 answer
Python - removeempy space in a cell
Python
1 vote47 views1 answer
Implement stack using list in python
Python
11 votes48 views6 answers
Append a list to a list python
Python
52 votes53 views2 answers
What is index in list in python
Python
0 vote40 views1 answer
How to encode a string in python
Python
0 vote48 views1 answer
Pandas dataframe to parquet s3
Python