Python · Sets and tuples

set.issubset()

Tests whether every value of a is in b. The <= operator does the same.

pythonRunnable example python course

Syntax

a.issubset(b)

Example

Open in the lab

print({"a"}.issubset({"a", "b"}))

Reference pages are the quick answer. The course explains the why, shows the full example and ends with a challenge.