python check if exist in list code example

Example 1: python check string not exist in array

arr_test = ["thetung1","thetung2","thetung3"]
title = "thetung"
if title not in arr_test:
	arr_test.append(title)

Example 2: Check if element in list Python

listA = [item1, item2, item3]
if item4 in listA:
  print('yes, item4 is in the list')
else:
  print('no, item4 is not in the list')

Example 3: python check if list contains value

if value in list:
  #do stuff

#Also to check if it doesn't contain
if value not in list:
  #do stuff

Example 4: python how to check in a list

# app.py

listA = ['Stranger Things', 'S Education', 'Game of Thrones']

if 'Dark' in listA:
    print("Yes, 'S Eductation' found in List : ", listA)
else:
    print("Nope, 'Dark' not found in the list")

Example 5: check if list contains string python

some_list = ['abc-123', 'def-456', 'ghi-789', 'abc-456']
if any("abc" in s for s in some_list):
    # whatever