Python | Ways to combine strings into a list

Michael Zippo 18.07.2021

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When developing an application, many scenarios arise when we need to work with a string and transform it into some kind of changing data structure, say, list . There are several ways to convert strings to list based on requirements. Let’s figure it out better with examples.

Method # 1: Using Ast

# Python code to combine all lines into one list.

# Import

import ast

# Line initialization

str1 = "’ Geeks’, ’for’,’ Geeks’ "

str2 = "’ paras.j’, ’jain.l’ "

str3 = " ’india’ "

# List initialization

list = []

# Expanding to a single list

for x in (str1, str2, str3):

list . extend (ast.literal_eval (x))

# printout

print ( list )

Exit:

 [’Geeks’,’ for’, ’Geeks’,’ paras.j’, ’jain.l’,’ i’, ’n’,’ d’, ’i’,’ a’]

Method # 2: Using Eval

       # Python code to combine all lines into one list.  
  
  # Initializing strings  
   str1   =   "[’ Geeks’, ’for’,’ Geeks’] " 
   str2   =  " [’paras .j’, ’jain.l’]"  
   str3   =   "[’ india’] " 
    
    
   out   =   [str1 , str2, str3] 
  
   out   =   eval   (  ’+’  . join (out)) 
  
  # printout  
   print   (out)

Exit:

 [’Geeks’,’ for’, ’ Geeks’, ’paras.j’,’ jain.l’, ’india’]

       # Python code to combine all lines into one list.  
  
  # Line initialization  
   str1   =   "’ Geeks’, ’for’,’ Geeks’ " 
   str2   =   "’ 121’, ’142’"  
 < p>  str3   =   "’ extend’, ’India’"    
  
   out   =   [str1, str2, str3] 
  
   out   =   eval   ( ’ + ’ . join (out))  
  
  # print out  
   print   (  list   (out) )

Exit:

 [’ Geeks’, ’for’,’ Geeks121’, ’142extend’,’ India’]

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We hope this article has helped you to resolve the problem. Apart from Python | Ways to combine strings into a list, check other ast Python module-related topics.

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Javier Jackson

Milan | 2023-04-01

Maybe there are another answers? What Python | Ways to combine strings into a list exactly means?. Checked yesterday, it works!

Marie Sikorski

London | 2023-04-01

Simply put and clear. Thank you for sharing. Python | Ways to combine strings into a list and other issues with imp Python module was always my weak point 😁. Will use it in my bachelor thesis

Dmitry Ungerschaft

San Francisco | 2023-04-01

Thanks for explaining! I was stuck with Python | Ways to combine strings into a list for some hours, finally got it done 🤗. Checked yesterday, it works!