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Current implementation


  • Cython is a superset of Python
  • Mature codebases for example usage and best practices
  • Lower overhead to call C/C++ code
  • NumPy integration
  • Nice gradual path to migrate performance-intensive code from Python to C/C++


  • Cython C++ integration has some corner cases and missing features
  • Need to rewrite header declarations (pxd file)
  • Errors can be cryptic (do they happen at the C/C++, Cython or Python level?)
  • Many C/C++ build system combinations
  • Vendored dependencies (no package mgmt)
  • One wheel per OS and Python version

Further reading