Track cefpython3/__init__.py; gitignore build outputs in cefpython3/

__init__.py is source; .pyd/.dll/.exe/.pak/.dat/.bin/.json/locales/
are build outputs or CEF runtime files and should not be committed.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: linesight

.gitignore

@@ -1,6 +1,14 @@
 .idea/
 build/
 dist/
+cefpython3/*.pyd
+cefpython3/*.dll
+cefpython3/*.exe
+cefpython3/*.pak
+cefpython3/*.dat
+cefpython3/*.bin
+cefpython3/*.json
+cefpython3/locales/
 _cmake_test/
 _skbuild/
 venv/

cefpython3/__init__.py

@@ -0,0 +1,30 @@
+import ctypes
+import importlib
+import os
+import platform
+import sys
+
+__all__ = ["cefpython"]
+__author__ = "The CEF Python authors"
+
+try:
+    from importlib.metadata import version as _pkg_version
+    __version__ = _pkg_version("cefpython3")
+except Exception:
+    __version__ = "unknown"
+
+package_dir = os.path.dirname(os.path.abspath(__file__))
+
+# Let subprocess and the C extension find CEF DLLs / .so files next to this
+# __init__.py regardless of the working directory.
+os.environ["CEFPYTHON3_PATH"] = package_dir
+
+if platform.system() == "Linux":
+    _ld = os.environ.get("LD_LIBRARY_PATH", "")
+    os.environ["LD_LIBRARY_PATH"] = (
+        package_dir + os.pathsep + _ld if _ld else package_dir
+    )
+    ctypes.CDLL(os.path.join(package_dir, "libcef.so"), ctypes.RTLD_GLOBAL)
+
+_pyver = "{0}{1}".format(*sys.version_info[:2])
+cefpython = importlib.import_module(".cefpython_py{}".format(_pyver), package=__name__)