How to Remove All Instances of a Value from a Python List?

Removing All Occurrences of a Value in a List

Unlike Python's remove() method, which only eliminates the first appearance of a value, the task at hand involves removing all occurrences of a specified value from a given list. To achieve this, various approaches can be employed.

Functional Approach

Leveraging Python's functional programming capabilities, one can utilize the filter() function to selectively remove elements based on a given condition. The following examples demonstrate various ways to approach this:

In Python 3.x:

>>> x = [1, 2, 3, 2, 2, 2, 3, 4]
>>> list(filter((2).__ne__, x))
[1, 3, 3, 4]

>>> list(filter(lambda a: a != 2, x))
[1, 3, 3, 4]

>>> [i for i in x if i != 2]

In Python 2.x:

>>> x = [1, 2, 3, 2, 2, 2, 3, 4]
>>> filter(lambda a: a != 2, x)

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