Major fixes and new features

venv/lib/python3.12/site-packages/mypyc/__main__.py

@@ -0,0 +1,57 @@
+"""Mypyc command-line tool.
+
+Usage:
+
+    $ mypyc foo.py [...]
+    $ python3 -c 'import foo'  # Uses compiled 'foo'
+
+
+This is just a thin wrapper that generates a setup.py file that uses
+mypycify, suitable for prototyping and testing.
+"""
+
+from __future__ import annotations
+
+import os
+import os.path
+import subprocess
+import sys
+
+base_path = os.path.join(os.path.dirname(__file__), "..")
+
+setup_format = """\
+from setuptools import setup
+from mypyc.build import mypycify
+
+setup(name='mypyc_output',
+      ext_modules=mypycify({}, opt_level="{}", debug_level="{}"),
+)
+"""
+
+
+def main() -> None:
+    build_dir = "build"  # can this be overridden??
+    try:
+        os.mkdir(build_dir)
+    except FileExistsError:
+        pass
+
+    opt_level = os.getenv("MYPYC_OPT_LEVEL", "3")
+    debug_level = os.getenv("MYPYC_DEBUG_LEVEL", "1")
+
+    setup_file = os.path.join(build_dir, "setup.py")
+    with open(setup_file, "w") as f:
+        f.write(setup_format.format(sys.argv[1:], opt_level, debug_level))
+
+    # We don't use run_setup (like we do in the test suite) because it throws
+    # away the error code from distutils, and we don't care about the slight
+    # performance loss here.
+    env = os.environ.copy()
+    base_path = os.path.join(os.path.dirname(__file__), "..")
+    env["PYTHONPATH"] = base_path + os.pathsep + env.get("PYTHONPATH", "")
+    cmd = subprocess.run([sys.executable, setup_file, "build_ext", "--inplace"], env=env)
+    sys.exit(cmd.returncode)
+
+
+if __name__ == "__main__":
+    main()