Python | Check if a substring presents in a string using \'in\' operator

Program:

# python program to check substring 
# presents in the string or not

# string and substring declaration, initialization
str = "IncludeHelp.Com"
sub_str ="Help"

# checking sub_str presents in str or not
if sub_str in str:
	print("Yes, substring presents in the string.")
else:
	print("No, substring does not present in the string.");

# testing another substring
sub_str = "Hello"	

# checking sub_str presents in str or not
if sub_str in str:
	print("Yes, substring presents in the string.")
else:
	print("No, substring does not present in the string.");

Output

Yes, substring presents in the string. 
No, substring does not present in the string.