cyrun 0.9

compile and run cython in one line

cyrun allows you to write cython code that runs like a scripting language, with compilation happening in the background. Here is an example:

#!/usr/bin/env cyrun
print("Hello World!")

You can use the usual cython build metadata at the beginning of the script to adjust compilation settings:

# distutils: name = test
# distutils: sources =
# distutils: define_macros = TESTMACRO
# distutils: undef_macros = TESTMACRO
# distutils: libraries =
# distutils: library_dirs = test
# distutils: runtime_library_dirs = test
# distutils: include_dirs = test
# distutils: extra_objects =
# distutils: extra_compile_args = -Wall
# distutils: extra_link_args =
# distutils: export_symbols =
# distutils: depends =
# distutils: language = c++

cyrun also adds the following metadata for searching for project-level module folders:

# cyrun: base = modules # starting from script folder, search all
  top-level directories for a folder called modules, and add it to
  the include path and build path
# cyrun: realpath = # if the script is a symlink, resolve it to the
  real path before searching
# cyrun: ignore = # ignore certain folder names during the search

cyrun stores compiled cython libraries in a cache folder:

- if CYTHON_BIN environment variable is set, use that folder
- otherwise, if there is a .cython folder in the script folder, use that
- otherwise, set it to ~/.cache/cython

cyrun uses the following environment variables:

CYTHON_BIN - optional path to cached cython binaries
SKIP - if set, skip compilation step
CHECK - if set, don't run the module after the build step
VERBOSE - if set, enable verbose build output
FORCE - if set, force compilation
DEBUG - if set, run cygdb debugger on the compiled script

Compilation is performed using distutils and cythonize(). Modules will only recompile if source code timestamps are newer than the cached binary file.