Original seen in Programmer Humor on Reddit.

It’s not even a joke.

This shit can happen when the application redirects the print output to something else.

@Lensflare or in a docker container if you didn't enable the PYTHONUNBUFFERED=1 env var. Other solution is to do print("xoxo", flush=True).
Also, forgetting a new line if your language doesn't add one automatically (printf c).
Also, if you're editing on the production server by accident.
Also, if you forgot to commit / push when debugging something remote and it requires deploy.
Also, when you get pyc'd.

I remember adding fflush() everywhere when using C

@cafecortado did you also hear a toilet sound in your head like I did? :)

@Lensflare lol yes

Learn how to use a debugger you peasants!

@Lensflare how does this randomly happen again ?

This guy remains creepy

@Lensflare or when print statements are only enabled for debug builds, but you're running in release mode.