How Can I Efficiently Input a List of Numbers in Python?

Alternative Solution for Inputting Numbers as a List in Python

In Python, obtaining a list of numbers from user input can be tricky if the input is not formatted correctly. The code snippet provided, which utilizes input or raw_input to get a list of numbers, faces the issue of interpreting the input as a string instead. This issue arises because the input function returns the input as a string by default.

To address this problem and create a list of numbers from the input, Python provides a more Pythonic solution using list comprehension. Here's how you can modify the code snippet:

a = [int(x) for x in input().split()]

Working Implementation:

This code snippet uses the split() function to split the input string into individual elements by default based on spaces. Each element is then passed to the int() function to convert it into an integer. Finally, these integers are placed into the list using list comprehension.

For instance, if the input is 3 4 5, the code will split it into ['3', '4', '5'], convert each element to an integer [3, 4, 5], and store it in the list a.

Example:

>>> a = [int(x) for x in input().split()]
3 4 5
>>> a
[3, 4, 5]

This solution is more Pythonic and efficient compared to using regular expressions or other complex methods.

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