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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 ...

You'll have to use something else besides plain strings, or something else besides in. You can use regex instead: re.match(r"\bbacillus thurungensis\b", "Sentence containing bacillus thurungensis.") And so on. The \b is a word boundary. Also note the usage of the r in the string r"...".

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://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://www.geeksforgeeks.org/python-regex-cheat-sheet/

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Regex Cheat Sheet – Python - GeeksforGeeks

Regex or Regular Expressions are an important part of Python Programming or any other Programming Language. It is used for searching and even replacing the specified text pattern. In the regular expression, a set of characters together form the search pattern. It is also known as the reg-ex pattern.

https://realpython.com/python-in-operator/

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Python's "in" and "not in" Operators: Check for Membership

Python’s membership operators work with several data types like lists, tuples, ranges, and dictionaries. You can use operator.contains() as a function equivalent to the in operator for membership testing. You can support in and not in in custom classes by implementing methods like .__contains__(), .__iter__(), or .__getitem__().

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://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/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.

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