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import re import urllib.request import operator # Download wiki page url = "https://en.wikipedia.org/wiki/Diplomatic_history_of_World_War_II" html = urllib.request.urlopen(url).read() # Find all mentioned years in the 20th or 21st century regex = r"\b(? This is another instance where I would strongly recommend using the well-tested libraries and/or services, along with the use of whitelists instead of blacklists, in order to protect your application from malicious inputs.
Error Banner.fade_out.modal_overlay.modal_overlay .modal_wrapper.modal_overlay [email protected](max-width:630px)@media(max-width:630px).modal_overlay .modal_fixed_close.modal_overlay .modal_fixed_close:before.modal_overlay .modal_fixed_close:before.modal_overlay .modal_fixed_close:before.modal_overlay .modal_fixed_close:hover:before. To improve your regex skills and to learn more about these features, I would recommend the following resources.The source code for the examples in this tutorial can be found at the Github repository here - https://github.com/triestpa/You-Should-Learn-Regex Feel free to comment below with any suggestions, ideas, or criticisms regarding this tutorial.Regular expressions can be used in virtually any programming language. Instead of writing scripts to perform these operations, try doing them natively in your text editor of choice.A knowledge of regex is very useful for validating user input, interacting with the Unix shell, searching/refactoring code in your favorite text editor, performing database text searches, and lots more. Nearly every text editor supports regex based find-and-replace. Regex Substitution in Sublime - Regex Substitution in Vim - Regex Substitution in VSCode - https://code.visualstudio.com/docs/editor/codebasics#_advanced-search-options Regex Substitution in Emacs - https://org/software/emacs/manual/html_node/emacs/What if we wanted to find all of the single-line comments within a CSS file?