Let's assume, you have a seq. of strings such as,
# List of string
list_of_strings = ['Sonia' , 'limo', 'karl', 'jhon', 'john', 'shawn']
Now, we'll check if the input list contains a string element 'john'.
Check if the list has the element — using python IN Operator
# check if the list has the element using 'in'
if 'john' in list_of_strings :
print("Yes, 'john' found in List:", list_of_strings)
if 'walter' not in list_of_strings :
print("Yes, 'walter' NOT found in List: " , list_of_strings)
Check if the list has the element — using list.count()
# check if the list has the element using list.count()
if list_of_strings.count('john') > 0 :
print("Yes, 'john' found in List : " , list_of_strings)
Check if the list has the element — using list comprehension
# check if the list has the element using list comprehension
res = [x for x in list_of_strings if x == 'john']
if res:
print("Yes, '{}' found in List: {}".format(res[0], list_of_strings))
Ref:- 1) What is a list in Python 2) Python list comprehension
