How do I create lists in Python in a memory-efficient way?

In Python, you can create lists in a memory-efficient way by using specific techniques and data structures. Here are some methods you can consider:

  • Use List Comprehensions: List comprehensions are more memory-efficient than using 'append' methods in loops.
  • Use Generators: If you don't need to hold the entire list in memory, you can create a generator that yields items one at a time.
  • Use the array module: If you need to store a large number of elements of the same type, consider using the array module for more memory-efficient storage.

Here is an example of creating a list efficiently using a list comprehension:

# Example of creating a list in a memory-efficient way numbers = [x for x in range(1000) if x % 2 == 0]

memory-efficient lists Python lists list comprehension generator array module

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