# Python | Convert list of strings and characters to list of characters

• Last Updated : 23 Jan, 2019

Sometimes we come forward to the problem in which we receive a list that consists of strings and characters mixed and the task we need to perform is converting that mixed list to a list consisting entirely of characters. Let’s discuss certain ways in which this is achieved.

Method #1 : Using List comprehension
In this method, we just consider each list element as string and iterate their each character and append each character to the newly created target list.

Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.

To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course. And to begin with your Machine Learning Journey, join the Machine Learning - Basic Level Course

 `# Python3 code to demonstrate ``# to convert list of string and characters``# to list of characters``# using list comprehension`` ` `# initializing list  ``test_list ``=` `[ ``'gfg'``, ``'i'``, ``'s'``, ``'be'``, ``'s'``, ``'t'``]`` ` `# printing original list``print` `(``"The original list is : "` `+` `str``(test_list))`` ` `# using list comprehension``# to convert list of string and characters``# to list of characters``res ``=` `[i ``for` `ele ``in` `test_list ``for` `i ``in` `ele]`` ` `# printing result ``print` `(``"The list after conversion is : "` `+`  `str``(res))`
Output:

```The original list is : ['gfg', 'i', 's', 'be', 's', 't']
The list after conversion is : ['g', 'f', 'g', 'i', 's', 'b', 'e', 's', 't']
```

Method #2 : Using `join()`

`join `function can be used to open the string and then join each letter with empty string resulting in a single character extraction. The end result has to be type casted to list for desired result.

 `# Python3 code to demonstrate ``# to convert list of string and characters``# to list of characters``# using join()`` ` `# initializing list  ``test_list ``=` `[ ``'gfg'``, ``'i'``, ``'s'``, ``'be'``, ``'s'``, ``'t'``]`` ` `# printing original list``print` `(``"The original list is : "` `+` `str``(test_list))`` ` `# using join()``# to convert list of string and characters``# to list of characters``res ``=` `list``(''.join(test_list))`` ` `# printing result ``print` `(``"The list after conversion is : "` `+`  `str``(res))`
Output:
```The original list is : ['gfg', 'i', 's', 'be', 's', 't']
The list after conversion is : ['g', 'f', 'g', 'i', 's', 'b', 'e', 's', 't']
```

Method #3 : Using `chain.from_iterable()`

`from_iterable `function performs the similar task of firstly opening each string and then joining the characters one by one. This is the most pythonic way to perform this particular task.

 `# Python3 code to demonstrate ``# to convert list of string and characters``# to list of characters``# using chain.from_iterable()``from` `itertools ``import` `chain`` ` `# initializing list  ``test_list ``=` `[ ``'gfg'``, ``'i'``, ``'s'``, ``'be'``, ``'s'``, ``'t'``]`` ` `# printing original list``print` `(``"The original list is : "` `+` `str``(test_list))`` ` `# using chain.from_iterable()``# to convert list of string and characters``# to list of characters``res ``=` `list``(chain.from_iterable(test_list))`` ` `# printing result ``print` `(``"The list after conversion is : "` `+`  `str``(res))`
Output:
```The original list is : ['gfg', 'i', 's', 'be', 's', 't']
The list after conversion is : ['g', 'f', 'g', 'i', 's', 'b', 'e', 's', 't']
```

My Personal Notes arrow_drop_up