Split and Parse a string in Python

In this article, we'll look at different ways to split and parse strings in Python. Let's understand this with the help of a basic example:

s = "geeks,for,geeks"

# Split the string by commas
res = s.split(',')

# Parse the list and print each element
for item in res:
    print(item)

geeks
for
geeks

Let's understand different methods to split and parse a string in Python.

Using re.split()

re.split() uses regular expressions to split a string based on patterns, making it highly flexible for complex cases with multiple delimiters.

import re

# Given string
s = "geeks;for,geeks"

# Split `s` at ';', ',', or space
res= re.split(r'[;, ]',s)

# Parse and print each item
for item in res:
    print(item)

['geeks', 'for', 'geeks']

Using map()

We can use the map() function to split a string into parts and then change each part, like turning all words into uppercase. It helps us process each piece of the string easily.

s = "geeks,for,geeks"


# Split and convert each item to uppercase using map
res = list(map(str.upper, s.split(',')))

# Print each item
for item in res:
    print(item)

GEEKS
FOR
GEEKS

Using partition

partition() method splits a string into three parts. Part before the first delimiter, the delimiter itself, and the part after it. It’s useful when we only need to split at the first occurrence of a specific character.

s = "geeks,for,geeks"

# Split at the first comma using partition
a, _, b = s.partition(',')

print(a)  # Part before the first comma ('geeks')
print(b)  # Part after the first comma ('for,geeks')

geeks
for,geeks