Method # 1: Using a Lambda
This task can be accomplished using a lambda function. In this we check a string for None or an empty string using the or operator and replace the None values ​​with an empty string.

# Python3 code to demonstrate how it works # Convert None to an empty string # Using lambda   # initialize the list of strings test_list = [ "Geeks" , None , "CS" , None , None ]   # print original list print ( "The original list is:" + str (test_list))   # using lambda # Convert None to an empty string conv = lambda i: i or `` res = [conv (i) for i in test_list]   # print result and print ( "The list after conversion of None values: " + str (res))

Output:

 The original list is: [`Geeks`, None,` CS`, None, None] The list after conversion of None values: [`Geeks`,` `,` CS`, ``, ``] 

Method # 2: Using str()
It`s just that the str function can be used to accomplish this particular task, because None also evaluates to False and, hence, it will not be selected, but instead a string converted to false will be returned, which evaluates to an empty string.

# Python3 code to demonstrate how it works # П convert None to an empty string # Using str ()   # initialize the string list test_list = [ "Geeks" , None , " CS " , None , None ]   # print original list print ( "The original list is:" + str (test_list))    # using str () # Convert None to an empty string res = [ str (i or ` `) for i in test_list]   # print result print ( "The list after conversion of None values:" + str (res))

Output:

 The original list is: [`Geeks`, None,` CS`, None, None] The list after conversion of None va lues: [`Geeks`,` `,` CS`, ``, ``]