Delete a list element by value in Python

Problem description

How to delete a list element by its value without knowing its possition?

Problem solution

There is a Python's remove() method for list manipulation which allows you to delete a list element without knowing its index. All you need is element's value. For example:

thislist = ["apple", "banana", "cherry", "banana", "kiwi"]
print(thislist) # output: ["apple", "banana", "banana", "kiwi"]

But what if there are two elements with same value?

thislist = ["apple", "banana", "cherry", "banana", "kiwi"]
print(thislist) # output: ["apple", "cherry", "banana", "kiwi"]

remove() method removes the first occurrence item with the specyfic value.

And what if there aren't any elements with given value?

thislist = ["apple", "banana", "cherry", "banana", "kiwi"]
thislist.remove("oranges") # throws ValueError

What if you want to delete all of elements with specific value? You can rebuild your list without those element, check this:

thislist = ["apple", "banana", "cherry", "banana", "kiwi"]
thislist = [element for element in thislist if element != 'banana'] # rebuild the list
print(thislist) # output: ['apple', 'cherry', 'kiwi']