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Check if license plate number is formatted correctly using Python

Last Updated: 23 July 2025

In various administrative and practical applications, validating the format of a license plate number is crucial. Ensuring that a license plate number adheres to a specifi...read more

Python

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Python Regex-programs

Python program to find the type of IP Address using Regex

Last Updated: 23 July 2025

Prerequisite: Python RegexGiven an IP address as input, write a Python program to find the type of IP address i.e. either IPv4 or IPv6. If the given is neither of them the...read more

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python-regex

Python Regex-programs

Validate an IP address using Python without using RegEx

Last Updated: 23 July 2025

Given an IP address as input, the task is to write a Python program to check whether the given IP Address is Valid or not without using RegEx.What is an IP (Internet Proto...read more

Python

python-regex

Python Regex-programs

Converting a 10 digit phone number to US format using Regex in Python

Last Updated: 23 July 2025

Text preprocessing is one of the most important tasks in Natural Language Processing. You may want to extract number from a string. Writing a manual script for such proces...read more

Python

python-regex

Python Regex-programs

Python program to find Indices of Overlapping Substrings

Last Updated: 31 July 2023

To count the number of overlapping sub-strings in Python we can use the Re module. To get the indices we will use the re.finditer() method. But it returns the count of non...read more

Python string-programs

Python Regex-programs

Python program to extract Strings between HTML Tags

Last Updated: 15 July 2025

Given a String and HTML tag, extract all the strings between the specified tag.Input : 'bGfg/b is bBest/b. I love bReading CS/b from it.' , tag = "br"Output : ['Gfg', 'Bes...read more

Python

Python Programs

python-regex

Python Regex-programs

Python - Check if String Contain Only Defined Characters Using Regex

Last Updated: 19 November 2025

Given a string, the task is to check whether it contains only a specific set of allowed characters. For example:Allowed characters: a-zInput: "hello" - ValidInput: "hi!" -...read more

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python-regex

Python Regex-programs

How to extract date from Excel file using Pandas?

Last Updated: 15 July 2025

Prerequisite: Regular Expressions in PythonIn this article, Let's see how to extract date from the Excel file. Suppose our Excel file looks like below given image then we ...read more

Python pandas-datetime

Python Regex-programs

How to Check if a String Starts with a Substring Using Regex in Python?

Last Updated: 04 November 2025

Given a string and a substring, the task is to check whether the string starts with the specified substring or not using Regex in Python. For example:String: "geeks for ge...read more

Python

python-regex

Python Regex-programs

Python program to find files having a particular extension using RegEx

Last Updated: 04 February 2026

In Python, you can efficiently identify files with a specific extension from a list of different file types using the built-in re module. This allows you to perform patter...read more

Python

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python-regex

Python Regex-programs

Extract punctuation from the specified column of Dataframe using Regex

Last Updated: 15 July 2025

Prerequisite: Regular Expression in PythonIn this article, we will see how to extract punctuation used in the specified column of the Dataframe using Regex.Firstly, we are...read more

Python pandas-dataFrame

Python Pandas-exercise

Python Regex-programs

How to Remove repetitive characters from words of the given Pandas DataFrame using Regex?

Last Updated: 15 July 2025

Prerequisite: Regular Expression in PythonIn this article, we will see how to remove continuously repeating characters from the words of the given column of the given Pand...read more

Python pandas-dataFrame

Python Regex-programs

Extract IP Address from File using Python

Last Updated: 19 January 2026

An IPv4 address is a 32‑bit numerical label used to identify a device on a network. It is written as four decimal numbers (each between 0 and 255) separated by periods (do...read more

Python Regex-programs

Python Program to Count Uppercase, Lowercase, Special Character and Numeric Values Using Regex

Last Updated: 08 November 2025

Given a string, task is to count the number of uppercase letters, lowercase letters, numeric digits, and special characters in a given string using Regular Expressions (Re...read more

Python

Python Programs

python-regex

Python Regex-programs

Categorize Password as Strong or Weak using Regex in Python

Last Updated: 17 November 2025

Given a password string, the task is to check whether it is strong or weak based on a set of conditions. A password is considered strong only if it passes all rules below:...read more

Python

python-regex

Python Regex-programs

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