python regex for extracting number in string

Regular expressions (regex) are powerful tools for pattern matching and text manipulation in Python. In this tutorial, we'll explore how to use regex to extract numbers from strings.
Regex patterns are sequences of characters that define a search pattern. To extract numbers from a string, we'll use the \d character class, which represents any digit (0-9), along with other regex elements.
Here are some common regex elements:
Python's re module provides support for regular expressions. Let's start with a basic example:
If you want to extract decimal numbers, you can modify the pattern to include the decimal point:
In this pattern, (\.\d+)? matches an optional group containing a period (\.) followed by one or more digits. This allows us to capture both integer and decimal numbers.
Regex is a versatile tool for text pattern matching, and it can be particularly useful for extracting numbers from strings in Python. Experiment with different patterns based on your specific requirements, and don't forget to test your regex on various input strings to ensure its robustness.
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