Generate .pyc files from .hy files on install

.gitignore

@@ -10,3 +10,4 @@ dist
 build/
 /.cache
 /.pytest_cache
+/.eggs

NEWS.rst

@@ -64,6 +64,7 @@ Bug Fixes
   in string and bytes literals.
 * ``defmacro`` no longer allows arguments after ``#* args``
 * Tracebacks from code parsed with `hy.read` now show source positions.
+* Hy now pre-compiles .hy files during setup/installation.
 
 New Features
 ------------------------------

setup.py

@@ -5,6 +5,7 @@
 import fastentrypoints  # Monkey-patches setuptools.
 from get_version import __version__
 from setuptools import find_packages, setup
+from setuptools.command.install import install
 
 os.chdir(os.path.split(os.path.abspath(__file__))[0])
 
@@ -14,14 +15,34 @@
 make things work nicer, and lets Python and the Hy lisp variant play
 nice together. """
 
+
+class install(install):
+    def run(self):
+        super().run()
+        import py_compile
+        from glob import glob
+
+        import hy  # for compile hooks
+
+        for path in glob(os.path.join(self.install_lib, "**/*.hy"), recursive=True):
+            py_compile.compile(
+                path, invalidation_mode=py_compile.PycInvalidationMode.CHECKED_HASH
+            )
+
+
+# both setup_requires and install_requires
+# since we need to compile .hy files during setup
+requires = [
+    "funcparserlib ~= 1.0",
+    "colorama",
+    'astor>=0.8 ; python_version < "3.9"',
+]
+
 setup(
     name=PKG,
     version=__version__,
-    install_requires=[
-        "funcparserlib ~= 1.0",
-        "colorama",
-        'astor>=0.8 ; python_version < "3.9"',
-    ],
+    setup_requires=requires,
+    install_requires=requires,
     python_requires=">= 3.7, < 3.11",
     entry_points={
         "console_scripts": [
@@ -35,10 +56,7 @@
     },
     packages=find_packages(exclude=["tests*"]),
     package_data={
-        "hy": ["*.hy", "__pycache__/*"],
-        "hy.contrib": ["*.hy", "__pycache__/*"],
-        "hy.core": ["*.hy", "__pycache__/*"],
-        "hy.extra": ["*.hy", "__pycache__/*"],
+        "": ["*.hy"],
     },
     data_files=[("get_version", ["get_version.py"])],
     author="Paul Tagliamonte",
@@ -69,4 +87,7 @@
         "Documentation": "https://docs.hylang.org/",
         "Source": "https://github.com/hylang/hy",
     },
+    cmdclass={
+        "install": install,
+    },
 )