Python Comments
Comments are very important while writing a program. It describes what’s going on inside a program so that a person looking at the source code does not have a hard time figuring it out. You might forget the key details of the program you just wrote in a month’s time. So taking the time to explain these concepts in form of comments is always fruitful.
In Python, we use the hash (#) symbol to start writing a comment.
It extends up to the newline character. Comments are for programmers for better understanding of a program. Python Interpreter ignores comment.
#This is a comment
#print out Hello
print(‘Hello’)
#This is a comment
#print out Hello
print('Hello')
# calculate and print sum of two numbers
a=int(input("Enter 1st no "))
b=int(input("Enter 2nd no "))
c=a+b
print("Sum = ",c)
Output:
Enter 1st no 10 Enter 2nd no 20 Sum = 30 >>>
Multi-line comments
If we have comments that extend multiple lines, one way of doing it is to use hash (#) in the beginning of each line.
For example:
#This is a long comment
#and it extends
#to multiple lines
Another way of doing this is to use triple quotes, either ”’ or “”” .
These triple quotes are generally used for multi-line strings. But they can be used as multi-line comment as well. Unless they are not docstrings, they do not generate any extra code.
”’This is also a
perfect example of
multi-line comments”’
or
“””his is also a
perfect example of
multi-line comments”””
"""
calculate and print sum of two numbers
"""
a=int(input("Enter 1st no "))
b=int(input("Enter 2nd no "))
c=a+b
print("Sum = ",c)
Output:
Enter 1st no 10 Enter 2nd no 20 Sum = 30 >>>
