10 Fun One‑Line Python Programs (Quine, Web Server, FizzBuzz, and More)

A program that can print its own source code is called a Quine.

Below is a one‑line Python Quine:

Some say that without a semicolon it is not a line; here is a version without a semicolon:

If you search for "language name + quine" you can find many implementations. For language enthusiasts, writing an elegant quine is an important achievement.

Similarly, each new language must achieve bootstrapping (implementing its own compiler or interpreter) to be considered respectable.

One line of code outputs “The Zen of Python”:

From “The Zen of Python” we see Python promotes principles such as Beautiful, Explicit, and Simple; the following one‑liners may even violate the Explicit principle.

1. One‑line code to start a web service:

2. One‑line code to swap variable values:

3. One‑line code to solve the FizzBuzz problem (print numbers 1‑100, replacing multiples of 3 with “Fizz”, multiples of 5 with “Buzz”, and multiples of both with “FizzBuzz”):

4. One‑line code to output a heart shape made of the characters “Love”:

5. One‑line code to generate a Mandelbrot image (each pixel corresponds to a complex number N = x + y*i):

6. One‑line code to print the multiplication table (九九乘法表):

7. One‑line code to compute prime numbers between 1 and 100 (two versions):

8. One‑line code to output the Fibonacci sequence:

9. One‑line code to implement the quicksort algorithm:

10. One‑line code to solve the eight‑queen problem:

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