Distinguish between range and xrange in Python.

1.	Distinguish between range and xrange in Python.
Answer» xrange and range are nearly identical in terms of functionality. They both allow you to generate a list of integers that you may use whatever you WANT. The only difference between range and xrange is that xrange produces an xrange object while range provides a Python list object. This implies that, unlike range, xrange does not create a STATIC list during EXECUTION. It generates the values as needed using a technique known as yielding. Generators, which are a type of object, are employed with this technique. That is, if you have a large range and want to construct a list for a billion people, you should use xrange. This is particularly the case if you're working with a system that demands a lot of memory, such as a cell phone, because range will utilise as MUCH RAM as it can to build your array of numbers, causing a memory problem and crashing your app.

Answer»

xrange and range are nearly identical in terms of functionality. They both allow you to generate a list of integers that you may use whatever you WANT. The only difference between range and xrange is that xrange produces an xrange object while range provides a Python list object.

This implies that, unlike range, xrange does not create a STATIC list during EXECUTION. It generates the values as needed using a technique known as yielding. Generators, which are a type of object, are employed with this technique. That is, if you have a large range and want to construct a list for a billion people, you should use xrange.

This is particularly the case if you're working with a system that demands a lot of memory, such as a cell phone, because range will utilise as MUCH RAM as it can to build your array of numbers, causing a memory problem and crashing your app.

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