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https://docs.python.org/3/howto/regex.html

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Regular Expression HOWTO — Python 3.13.3 documentation

Learn how to use regular expressions in Python with the re module. This tutorial covers the basics of matching characters, classes, sequences, and repetitions with examples and syntax.

https://stackoverflow.com/questions/41294329/how-do-i-get-pythons...

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regex - How do I get python's "in" operator to only yield true word ...

Use a regular expression, with the \b word boundary operator around the pattern. You'll never get those exact code examples to work like that with ordinary strings, because that's not how in works on strings. You'll have to use something else besides plain strings, or something else besides in. You can use regex instead:

https://realpython.com/regex-python/

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Regular Expressions: Regexes in Python (Part 1) – Real Python

There are at least a couple ways to do this. You could use the in operator: If you want to know not only whether '123' exists in s but also where it exists, then you can use .find() or .index(). Each of these returns the character position within s where the substring resides:

https://www.w3schools.com/python/python_regex.asp

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Python RegEx - W3Schools

RegEx can be used to check if a string contains the specified search pattern. Python has a built-in package called re, which can be used to work with Regular Expressions. Import the re module: When you have imported the re module, you can start using regular expressions: Search the string to see if it starts with "The" and ends with "Spain":

https://www.geeksforgeeks.org/pattern-matching-python-regex/

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Pattern matching in Python with Regex - GeeksforGeeks

In this article, we will see how pattern matching in Python works with Regex. Regular expressions, also called regex, are descriptions of a pattern of text. It can detect the presence or absence of a text by matching it with a particular pattern and also can split a pattern into one or more sub-patterns.

https://docs.python.org/3/library/re.html

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re — Regular expression operations — Python 3.13.3 documentation

Learn how to use the re module to perform pattern matching and substitution with regular expressions in Python. See the syntax, flags, functions, and methods of the re module, and how to deal with special characters and quantifiers.

https://regex101.com/

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regex101: build, test, and debug regex

Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.

https://note.nkmk.me/en/python-str-compare/

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String Comparison in Python (Exact/Partial Match, etc.) - nkmk note

To check for partial matches, use the in operator, which determines if one string contains another string. x in y returns True if x is contained in y (i.e., x is a substring of y), and False if it is not. If the characters of x appear in y but not consecutively, False is returned.

https://www.regular-expressions.info/python.html

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Python re Module - Use Regular Expressions with Python - Regex Support

Python’s built-in “re” module provides excellent support for regular expressions, with a modern and complete regex flavor. Two significant missing features, atomic grouping and possessive quantifiers, were added in Python 3.11.

https://www.geeksforgeeks.org/regular-expression-python-examples/

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Python RegEx - GeeksforGeeks

How to Use RegEx in Python? You can use RegEx in Python after importing re module. This Python code uses regular expressions to search for the word "portal" in the given string and then prints the start and end indices of the matched word within the string. Note: Here r character (r’portal’) stands for raw, not regex.

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