Intro to Python Programming

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Range()

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Intro to Python Programming

Definition

range() is a built-in Python function used to generate a sequence of numbers. It is commonly used in for loops to iterate over a series of values.

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5 Must Know Facts For Your Next Test

  1. The range() function can take one, two, or three arguments.
  2. range(stop) generates numbers from 0 up to, but not including, stop.
  3. range(start, stop) generates numbers from start up to, but not including, stop.
  4. range(start, stop, step) generates numbers from start up to, but not including, stop, incrementing by step.
  5. The range() function returns an immutable sequence object of type 'range'.

Review Questions

  • How does the range() function differ when provided with one argument versus two?
  • What will be the output of list(range(1, 10, 2))?
  • Why might you use range() in a for loop?

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