Difference Between Range And Xrange In Python
In Python 2, `range()` generates a list containing arithmetic progressions, which can consume a lot of memory for large ranges. On the other hand, `xrange()` returns an xrange object representing an arithmetic progression, consuming very little memory as it generates only the elements needed on-the-fly. In Python 3, `range()` behaves like `xrange()` of Python 2, so the distinction is no longer relevant in Python 3.
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1 - The `range` function in Python is used to generate a list of numbers, while the `xrange` function does not actually generate a list but returns an xrange object that behaves similar to a generator.
2) `range` returns a list containing the specified range of numbers, while `xrange` returns an xrange object which generates numbers on the fly.
3) In terms of memory usage, `range` generates the entire list of numbers upfront, while `xrange` generates numbers dynamically, saving memory.
4) When using `range`, the entire list of numbers is stored in memory, which might not be efficient for a large range of numbers. In such cases, `xrange` can be more memory efficient.
5) In Python 3, the `xrange` function has been removed and the `range` function behaves like the `xrange` function, providing the benefits of memory efficiency.
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