When comparing Cython vs V, the Slant community recommends V for most people. In the question“What are the best languages to learn for someone coming from Python?” V is ranked 8th while Cython is ranked 13th. The most important reason people chose V is:
Compile app to run on different OSes.
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Pros
Pro Good for interfacing C/C++/Fortran libs
It's basically C with Python syntax.
Pro Used a lot in the data science community
Pro Full control over the types
Pro Cross-platform
Compile app to run on different OSes.
Pro Sum types
V has sum types.
Pro GUI support
V comes with (simple) GUI support out of the box.
Pro Clear syntax
Highly understandable language.
Pro Safety
V is very safe.
Pro Fast like C
V is easier than C and fast like C.
Pro Closures
V has closures, which gives the user additional options and usefulness.
Pro Generics
V has generics.
Pro Supports concurrency and channels
Can run functions concurrently that communicate over channels.
Pro C Interop
Can import C libraries, structs, and headers.
Pro Fast compile times
Compiles programs fast, less waiting around, so more productive and fun.
Pro Lambdas
Supports using lambdas, which helps write more concise code without having to use so many lines.