Rickrolling

Rickrolling refers to the practice of tricking someone into clicking a hyperlink that leads to the music video of "Never Gonna Give You Up" by Rick Astley. This prank became popular in the early 2000s and still continues to this day.

How does it work?

To Rickroll someone, you typically send them a link to something interesting or relevant. When they click on the link, they are then redirected to the infamous Rick Astley music video. The hyperlink can be disguised in a number of ways, such as a shortened URL or embedded in an image.

Rickrolling in Code

Programmers have found ways to incorporate Rickrolling into their code as well. One common method is to hide the lyrics to "Never Gonna Give You Up" in source code comments or variable names. Another approach is to create a hidden Rickroll website that, when accessed, plays the music video.

Here is an example of a code snippet that Rickrolls the user:

def foo():
    """
    This function does something useful.

    Never gonna give you up
    Never gonna let you down
    Never gonna run around and desert you
    """
    print("Hello World!")
    # Never gonna make you cry
    # Never gonna say goodbye
    # Never gonna tell a lie and hurt you
    webbrowser.open('https://www.youtube.com/watch?v=dQw4w9WgXcQ')

As you can see, the lyrics to "Never Gonna Give You Up" are hidden in the function's docstring and comments. When the function is called, it prints "Hello World!" and redirects the user to the Rick Astley music video.

Conclusion

Rickrolling may be a harmless prank, but it's still a popular trend that has been around for over a decade. Programmers have found creative ways to incorporate it into their code, adding a humorous touch to their projects. Remember, if you receive a suspicious link, be careful not to get Rickrolled!