Checking for presence in Python
In conditions, you can also check for the presence of an element. For this, the in operator is used.
Let us have a variable tst and a list lst:
tst = 3
lst = [1, 2, 3]
Let's check if the variable value is in the list:
if tst in lst:
print('+++') # this will work
else:
print('---')
Using the not in construct, you can check whether a variable's value is not in a list:
if tst not in lst:
print('+++')
else:
print('---') # will this work
Given a variable and a list:
tst = 'x'
lst = ['x', 'y', 'z', 'w']
Check if the variable is in the list.
Given a variable and a set:
tst = '1'
st = {1, 2, 3, 4, 5}
Check that the variable is not in the list.
Given a variable and a string:
tst = '3'
txt = '123456'
Check if the variable exists in the string.
The following code is given:
tst = 3
lst = ['a', 'b', 'c', 'd', 'e']
res = lst[tst]
tlp = ('a', 'b', 'c')
if res in tlp:
print('+++')
else:
print('---')
Tell me what will be output to the console.