What is mypy written in?
mypy is a general-purpose programming language, first released in 2012.
Implementation
| Layer | Written in | Notes |
|---|---|---|
| Compiler | Python (since 2012) | mypy type checker written in Python |
Compiler implementation
The mypy compiler, written in Python, translates mypy source code into an executable or intermediate format. The choice of implementation language affects the compiler's portability, build-time dependencies, and the path toward mypy eventually becoming self-hosting.
Many language compilers are written in C or C++ for maximum portability and performance. When a compiler is written in a higher-level language, it can leverage that language's abstractions for clearer compiler code, at the cost of a longer bootstrap dependency chain.
Explore in the Graph
See mypy's full lineage, including all implementation and influence relationships, in the interactive graph.
Open Interactive Graph →Or view the mypy language page for the complete record.