Python Typing Survey 2025: Code Quality and Flexibility As Top Reasons for Typing Adoption

The 2025 Typed Python Survey (1,241 responses) examines adoption trends, pain points, and tooling preferences across the Python typing ecosystem.

• •86% of respondents use type hints "always" or "often", consistent with last year; developers with 5–10 years of experience show the highest adoption at 93%
• •Top reasons for adoption: improved readability/documentation, enhanced IDE tooling (autocomplete, jump-to-definition), and early bug detection
• •Key pain points include poor third-party library type support (NumPy, Pandas, Django), complexity of generics/TypeVar, and fragmentation between Mypy and Pyright
• •Most requested features: TypeScript-style intersection/mapped/conditional types, runtime type enforcement, higher-kinded types, and an official built-in type checker
• •Mypy remains dominant at 58% usage, but Rust-based checkers (Pyrefly, Ty, Zuban) collectively reached 20%; VS Code is the most popular IDE