Md Waqar Tabish has Published 11 Articles

What are regular expression repetition cases in Python?

Md Waqar Tabish

Md Waqar Tabish

Updated on 23-Nov-2022 10:04:57

We can build regular expressions that recognise repeated character groups using a few special characters. The following metacharacters can be used to search for a character or set of repeated characters. The question mark was the first repeating operator or quantifier developed. It effectively makes it optional by instructing the ... Read More

How to extract date from text using Python regular expression?

Md Waqar Tabish

Md Waqar Tabish

Updated on 23-Nov-2022 09:54:12

We must first understand some regular expression fundamentals as we will use them. There are various ways to declare patterns in regular expressions, which might make them appear complex but are pretty simple. Regular expressions are patterns that can be used to match strings that adhere to that pattern. You ... Read More

How can I use Python regex to split a string by multiple delimiters?

Md Waqar Tabish

Md Waqar Tabish

Updated on 23-Nov-2022 09:52:25

Classes that encompass a collection of characters are known as regular expression classes. One of these classes, d, which matches any decimal digit, will be used. Learning how to split data may be valuable. Data arrives in various kinds and sizes, and it's sometimes not as clean as we'd like. ... Read More

How to optimize the performance of Python regular expression?

Md Waqar Tabish

Md Waqar Tabish

Updated on 23-Nov-2022 09:47:08

Introduction A regular expressions-specific built-in library named re exists in Python. You only need to import it to use its features (such as search, match, findall, etc.). They'll provide you back a Match object with helpful techniques for modifying your outcomes. According to Wikipedia, regular expressions (also known as regexp) ... Read More

How do we use Python regular expression to match a date string?

Md Waqar Tabish

Md Waqar Tabish

Updated on 23-Nov-2022 09:45:20

Introduction Programming languages frequently employ date inputs to obtain user data, such as birthdates, travel dates, reservation dates, etc. These dates given by the user may be immediately verified as legitimate using regular expressions. To determine whether a text has a valid date format and to extract a valid date ... Read More

What is Raw String Notation in Python regular expression?

Md Waqar Tabish

Md Waqar Tabish

Updated on 23-Nov-2022 09:44:13

Introduction A regular expression is a word that is frequently abbreviated as regex. Regex is a set of characters that specifies a search pattern and is mostly used in text processors and search engines to execute find and replace operations. When a string in Python is prefixed with the letter ... Read More

How can I subtract a day from a Python date?

Md Waqar Tabish

Md Waqar Tabish

Updated on 23-Nov-2022 09:41:05

Introduction It is essential to have a module that can modify date and time since, as we all know, they are utilized in applications where we must keep track of date and time. A DateTime module in Python deals with dates and times. Python comes with a built-in datetime module. ... Read More

Why do we use question mark literal in Python regular expression?

Md Waqar Tabish

Md Waqar Tabish

Updated on 20-Sep-2022 07:15:56

Introduction The question mark makes the previous token in the regular expression optional. For example: colou?r is complementary to both colour and colour. A quantifier is what the question mark is known as. You may make multiple tokens optional by combining numerous tokens in parentheses and adding the question mark ... Read More

How to print a calendar for a month in Python

Md Waqar Tabish

Md Waqar Tabish

Updated on 20-Sep-2022 07:14:28

Introduction Your helpful garden snake language python has you covered if you want to put up a personal calendar or even practise your daily coding challenge. How so? The Calendar module in Python is a built-in module that you may use to execute date, month, and calendar-related actions and ... Read More

How to match whitespace in python using regular expressions

Md Waqar Tabish

Md Waqar Tabish

Updated on 20-Sep-2022 07:09:49

Regular expressions, often known as RegEx, are a string of characters corresponding to letters, words, or character patterns in text strings. It implies that you may use regular expressions to match and retrieve any string pattern from the text. Search and replace procedures benefit from the usage of regular expressions. ... Read More

Advertisements