Скачать или смотреть Python how can I identify a decimal number in a string

In Python, you can identify a decimal number within a string by using regular expressions or by using built-in functions and methods. In this tutorial, I'll show you both methods with code examples to help you achieve this.
Method 1: Using Regular Expressions
Regular expressions are a powerful tool for pattern matching within strings. You can use the re module in Python to search for decimal numbers within a string. Here's a step-by-step guide:
Here's the complete code:
This code will output:
Method 2: Using Built-In Functions and Methods
You can also identify decimal numbers in a string using built-in Python functions and methods. This method is less flexible than regular expressions but can be more straightforward for simple cases. Here's how you can do it:
In this code, we remove the "$" and "," characters and then check if the cleaned word is a valid decimal number. This method works for simple cases but may not handle all edge cases as effectively as regular expressions.
Here's the complete code for the second method:
The output will be the same as in the first method:
Choose the method that best fits your needs and the complexity of the decimal number detection you require in your specific use case. Regular expressions are more versatile and can handle a wide range of cases, while the second method is simpler and may be more suitable for basic scenarios.
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