View Category
Fun

produces a copy of its own source code

In computing, a quine is a computer program which produces a copy of its own source code as its only output.
python
# adapted from a Quine by Sean B. Palmer

print (lambda s='print (lambda s=%r: (s %% s))()': (s % s))()
x='x=%r;print(x%%x)';print(x%x)