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Regular Expressions in Python Exercises
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Regular Expressions in Python Exercises

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Questions and Answers

What does the regular expression m\w\w represent?

  • Words or strings with three alphanumeric characters and 'm' as the first character (correct)
  • Words or strings with two alphanumeric characters
  • Words or strings with one alphanumeric character
  • Words or strings with four alphanumeric characters
  • What is the function of the compile() method?

  • To compile the regular expression into a pattern (correct)
  • To replace strings
  • To search for strings
  • To split strings
  • What does the search() method return if the matching string is not found?

  • None (correct)
  • An empty list
  • An error message
  • An empty string
  • What is the purpose of the group() method?

    <p>To access the matched string</p> Signup and view all the answers

    What is the difference between the match() and search() methods?

    <p><code>match()</code> searches from the beginning, while <code>search()</code> searches the entire string</p> Signup and view all the answers

    What does the findall() method return if the matching strings are not found?

    <p>An empty list</p> Signup and view all the answers

    What is the purpose of the re module?

    <p>To work with regular expressions</p> Signup and view all the answers

    What is the function of the regular expression \w?

    <p>To match any alphanumeric character</p> Signup and view all the answers

    What is the purpose of the Prog=re.compile(r'm\w\w') line of code?

    <p>To compile the regular expression into a pattern</p> Signup and view all the answers

    What is the function of the Result=Prog.search(Str) line of code?

    <p>To search for strings</p> Signup and view all the answers

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