Cython support

Prerequisites

PyCharm provides initial Cython support out-of-the-box. PyCharm recognizes .pyx, .pxd, and .pxi files, and allows you to edit them.

However, if you want to compile and run .pyx files, make sure that the following prerequisites are met:

• Cython is downloaded and installed on your computer.

• C compiler is downloaded and installed on your computer.

Cython support

Cython files are marked with icon.

Cython support includes:

1. Coding assistance:

   • Error and syntax highlighting.

   • Code completion for keywords, fields of structs, and attributes of extension types.

   • Code formatting and folding.

   • Ability to create line comments Ctrl+/.

   • Cython syntax for typed memoryviews.

2. Code inspections. Almost all Python code inspections work for Cython.

3. Refactorings.

4. Numerous ways to navigate through the source code, among them:

   • Navigating with Structure View.

   • Navigate | Declaration Ctrl+B.

   • Navigate | Implementation Ctrl+Alt+B from overridden method / subclassed class.

5. Advanced facilities to search through the source code, in particular, finding usages.

6. Compiling Cython modules:

   • Compilation is done using external tools. The preferred build systems (Makefile, setup.py, and so on) should be configured as external tools.

   • C compiler should be downloaded and installed on your computer.