How to remove an element from a list by user input in python?

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I want to remove an element from a list by using a user input and a for loop.

This is as far I got:

patientname = input("Enter the name of the patient: ") 
for x in speclistpatient_peter:                
    del speclistpatient_peter

Just use the remove method for lists:

 l = ["ab", "bc", "ef"]
 l.remove("bc")

removes the elment "bc" from l.

How to remove an element from a list by user input in python , How do I remove a specific element from a list in Python? The remove() function uses the list element as the argument to delete. You have to pass only the single element which you want to delete. The function requires only one element and can delete the only single element from the list. Use the list variable concatenated with the remove() to remove the list element.

Use a list comprehension; altering a list in a for loop while looping can lead to problems as the list size changes and indices shift up:

speclistpatient_peter = [x for x in speclistpatient_peter if x != patientname]

This rebuilds the list but leaves out the elements that match the entered patientname value.

What ways can we use to remove elements from a list in Python , How do I remove a string from a list in Python? The remove () method removes the first occurrence of the element with the specified value. list .remove ( elmnt ) Parameter Values. Required. Any type (string, number, list etc.) The element you want to remove. List Methods.

This line is incorrect:

patientname = input("Enter the name of the patient: ") 

Putting anything in the input() function rather than the specific thing you want to delete or find from the list will cause an error. In your case you added ("Enter the name of the patient: "), so after the execution it will search for "Enter the name of the patient: " in the list but its not there.

Here is how you can delete a specific item from the list. You don't have use loop, instead you can delete it by using the remove() function:

print("Enter the item you want to delete")
patientname = input() # Dont Put anything between the first bracket while using input()
speclistpatient_peter.remove(patientname)
print(speclistpatient_peter)

Python Nested List, How do I remove an element from a nested list in Python? If you need to delete elements based on the index (like the fourth element), you can use the pop() method. Also, you can use the Python del statement to remove items from the list.

Python, . If you don't need the removed value, use the del statement. Python list method remove() searches for the given element in the list and removes the first matching element. Syntax. Following is the syntax for remove() method − list.remove(obj) Parameters. obj − This is the object to be removed from the list. Return Value. This Python list method does not return any value but removes the given object

Python, Given an index, remove the element at that index from the list and print the new list. Examples: Input : list = [10, 20, 30, 40, 50] index = 2 Output : [10, 20  Enter a list element separated by space 2 4 6 9. Calculating sum of element of input list. Sum = 20. Analysis. Now let us breakdown the program and see how the workings behind it. As you already know, whenever we use the input() function in Python, it converts the user input into a string. Therefore in the above program, we accepted a list element from a user in the form of a string which is separated by spaces.

How to remove an item from a list in python, Given a list, the task is to remove all those elements from list which contains the specific digits. Examples: Input: lst = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 13, 15,​  Given an index, remove the element at that index from the list and print the new list. Examples: Using traversal in the list, append all the index values except the given index to a new list and then print the new list. For this we will require a new list where we can append all the values except the given index value.

Comments
  • Presumably speclistpatient_peter is a list of names, all strings?
  • Actually, it will not. input is very special in python, and the argument inside input is the prompt. You could run this in IDLE or any other REPL.