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Python Regex: The 5 Exclusive Examples

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 Regular expressions (regex) are powerful tools for pattern matching and text manipulation in Python. Here are five Python regex examples with explanations: 01 Matching a Simple Pattern import re text = "Hello, World!" pattern = r"Hello" result = re.search(pattern, text) if result:     print("Pattern found:", result.group()) Output: Output: Pattern found: Hello This example searches for the pattern "Hello" in the text and prints it when found. 02 Matching Multiple Patterns import re text = "The quick brown fox jumps over the lazy dog." patterns = [r"fox", r"dog"] for pattern in patterns:     if re.search(pattern, text):         print(f"Pattern '{pattern}' found.") Output: Pattern 'fox' found. Pattern 'dog' found. It searches for both "fox" and "dog" patterns in the text and prints when they are found. 03 Matching Any Digit   import re text = "The price of the
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The Easy Way to Split String Python Partition Method

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Here's a way without the Split function you can split (or extract) a substring. In Python the method is Partition. You'll find here how to use this method with an example. 


Split string using the Partition

How to Split the string using Partition method

 

Returns Left side part

Example-1

my_string='ABCDEFGH||10||123456.25|'

my_partition=my_string.partition('|')[0]

print(my_partition)


Output

|10||123456.25|


** Process exited - Return Code: 0 **
Press Enter to exit terminal

Example-2

Returns from the separator to last of the string.

my_string='ABCDEFGH||10||123456.25|'
my_partition=my_string.partition('|')[-1]
print(my_partition)

Output

|10||123456.25|


** Process exited - Return Code: 0 **
Press Enter to exit terminal


The use of Rpartition to split a string in Python


Example-1

Returns except right side last separator.

my_string='ABCDEFGH||10||123456.25|'
my_partition=my_string.rpartition('|')[0]
print(my_partition)

Output

ABCDEFGH||10||123456.25


** Process exited - Return Code: 0 **
Press Enter to exit terminal

Example-2

Returns no string

my_string='ABCDEFGH||10||123456.25|'
my_partition=my_string.rpartition('|')[-1]
print(my_partition)


Output




** Process exited - Return Code: 0 **
Press Enter to exit terminal


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