.join() method is used for what purpose in Python?

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May 14 in Python by Shabnam
• 760 points

1 answer to this question.

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join() method is used to concatenate or join all the iterables into one string, and this string must be specified as the separator.




Lets join a list with ','.

>>mylist = ['1', '2', '3', '4', '5']
>>S = ","
#joins elements of mylist with S and store it in string S
>>S = S.join(mylist)

Now let's join two dataframes using join() method

>>import numpy as np
>>import pandas as pd 
>>df1 = pd.DataFrame({'A': ['A0', 'A1', 'A2', 'A3']})                   
>>df2 = pd.DataFrame({'B': ['B0', 'B1', 'B2', 'B3']}) 
0 A0 B0
1 A1 B1
2 A2 B2
3 A3 B3
answered May 14 by Taj
• 840 points

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