for item in list_of_lists:
isinstance(item, list)
if isinstance(ini_list1, list):
print("your object is a list !")
else:
print("your object is not 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")