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Understanding Regular Expressions with `re` in Python

Tutorial October 24, 2024
python

  • [+-]?: Match an optional + or - sign.
  • \d+: Match one or more digits.
  • (\.\d+)?: Match an optional decimal point followed by one or more digits (for floating-point numbers).

Let's first create a pattern that matches both positive and negative integers, with an optional + or - sign.

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