In [1]:

    

import pandas as pd


    

In [2]:

    

col1 = [1, 2, 3]
col2 = ["A", "B", "C"]
db = pd.DataFrame({"COL1": col1, "COL2": col2})


    

In [3]:

    

db


    

    
Out[3]:






  

    

      

      
COL1
      
COL2
    
  
  

    

      
0
      
1
      
A
    
    

      
1
      
2
      
B
    
    

      
2
      
3
      
C
    
  

In [4]:

    

db2 = db.copy(deep = True)


    

In [5]:

    

db2["COL3"] = pd.Series(["XX", "YY", "ZZ"])


    

In [6]:

    

db2


    

    
Out[6]:






  

    

      

      
COL1
      
COL2
      
COL3
    
  
  

    

      
0
      
1
      
A
      
XX
    
    

      
1
      
2
      
B
      
YY
    
    

      
2
      
3
      
C
      
ZZ
    
  

In [ ]: