Python’s lead narrows again, C holds the runner-up spot, C++ returns to third, and SQL climbs back above R in June’s top 10 ...
Every Python developer knows some or all of these libraries, because they’re stable, reliable, and excellent at what they do.
June 2026 TIOBE Index shows Python slipping below 19%, C++ moving back ahead of Java, and Rust reaching #12 as Paul Jansen revises his plateau call.