Get Substring Between Two Characters with Python

To get the substring between two characters in a string with Python, there are a few ways you can do it. The easiest way is with the index() function and string slicing.

string = "Word1aWord2bWord3"

between_a_and_b = string[string.index("a") + 1: string.index("b")]

print(between_a_and_b)

#Output:
Word2

You can also use the regular expression re module to get the substring between two characters.

import re 

string = "Word1aWord2bWord3"

between_a_and_b = re.search('a(.*)b',string).group(1)

print(between_a_and_b)

#Output:
Word2

When working with strings in Python, the ability to extract pieces of information from those strings can be valuable.

One such piece of information which can be useful is a substring between two characters.

With Python, you can easily get the characters between two characters using the string index() function and string slicing.

First, you need to get the position of each of the two characters. Then we can create a slice to get the characters between the two positions.

Below is a simple example of how you can get the substring between two characters in Python.

string = "Word1aWord2bWord3"

between_a_and_b = string[string.index("a") + 1: string.index("b")]

print(between_a_and_b)

#Output:
Word2

Using Regular Expression to Get Substring Between Two Characters in Python

Another way that you can get a substring between two given characters is with the regular expression re module.

With a regular expression, we can create a pattern which looks for substrings in a string that start with the first character and end with the second character.

Then you can use the search() function to find all substrings between the two characters in your string.

Below is an example showing how to use a regular expression to get the substring between two characters using Python.

import re 

string = "Word1aWord2bWord3"

between_a_and_b = re.search('a(.*)b',string).group(1)

print(between_a_and_b)

#Output:
Word2

Hopefully this article has been useful for you to learn how to get the substring between two characters in a string using Python.