Re-organize directory structure (#4971)

See discussion in #2491

Co-authored-by: Ivan Levkivskyi <ilevkivskyi@dropbox.com>

stdlib/compileall.pyi

@@ -0,0 +1,108 @@
+import sys
+from _typeshed import AnyPath
+from typing import Any, Optional, Pattern
+
+if sys.version_info >= (3, 7):
+    from py_compile import PycInvalidationMode
+
+if sys.version_info >= (3, 9):
+    def compile_dir(
+        dir: AnyPath,
+        maxlevels: Optional[int] = ...,
+        ddir: Optional[AnyPath] = ...,
+        force: bool = ...,
+        rx: Optional[Pattern[Any]] = ...,
+        quiet: int = ...,
+        legacy: bool = ...,
+        optimize: int = ...,
+        workers: int = ...,
+        invalidation_mode: Optional[PycInvalidationMode] = ...,
+        *,
+        stripdir: Optional[str] = ...,  # TODO: change to Optional[AnyPath] once https://bugs.python.org/issue40447 is resolved
+        prependdir: Optional[AnyPath] = ...,
+        limit_sl_dest: Optional[AnyPath] = ...,
+        hardlink_dupes: bool = ...,
+    ) -> int: ...
+    def compile_file(
+        fullname: AnyPath,
+        ddir: Optional[AnyPath] = ...,
+        force: bool = ...,
+        rx: Optional[Pattern[Any]] = ...,
+        quiet: int = ...,
+        legacy: bool = ...,
+        optimize: int = ...,
+        invalidation_mode: Optional[PycInvalidationMode] = ...,
+        *,
+        stripdir: Optional[str] = ...,  # TODO: change to Optional[AnyPath] once https://bugs.python.org/issue40447 is resolved
+        prependdir: Optional[AnyPath] = ...,
+        limit_sl_dest: Optional[AnyPath] = ...,
+        hardlink_dupes: bool = ...,
+    ) -> int: ...
+
+elif sys.version_info >= (3, 7):
+    def compile_dir(
+        dir: AnyPath,
+        maxlevels: int = ...,
+        ddir: Optional[AnyPath] = ...,
+        force: bool = ...,
+        rx: Optional[Pattern[Any]] = ...,
+        quiet: int = ...,
+        legacy: bool = ...,
+        optimize: int = ...,
+        workers: int = ...,
+        invalidation_mode: Optional[PycInvalidationMode] = ...,
+    ) -> int: ...
+    def compile_file(
+        fullname: AnyPath,
+        ddir: Optional[AnyPath] = ...,
+        force: bool = ...,
+        rx: Optional[Pattern[Any]] = ...,
+        quiet: int = ...,
+        legacy: bool = ...,
+        optimize: int = ...,
+        invalidation_mode: Optional[PycInvalidationMode] = ...,
+    ) -> int: ...
+
+else:
+    # rx can be any object with a 'search' method; once we have Protocols we can change the type
+    def compile_dir(
+        dir: AnyPath,
+        maxlevels: int = ...,
+        ddir: Optional[AnyPath] = ...,
+        force: bool = ...,
+        rx: Optional[Pattern[Any]] = ...,
+        quiet: int = ...,
+        legacy: bool = ...,
+        optimize: int = ...,
+        workers: int = ...,
+    ) -> int: ...
+    def compile_file(
+        fullname: AnyPath,
+        ddir: Optional[AnyPath] = ...,
+        force: bool = ...,
+        rx: Optional[Pattern[Any]] = ...,
+        quiet: int = ...,
+        legacy: bool = ...,
+        optimize: int = ...,
+    ) -> int: ...
+
+if sys.version_info >= (3, 7):
+    def compile_path(
+        skip_curdir: bool = ...,
+        maxlevels: int = ...,
+        force: bool = ...,
+        quiet: int = ...,
+        legacy: bool = ...,
+        optimize: int = ...,
+        invalidation_mode: Optional[PycInvalidationMode] = ...,
+    ) -> int: ...
+
+else:
+    def compile_path(
+        skip_curdir: bool = ...,
+        maxlevels: int = ...,
+        force: bool = ...,
+        quiet: int = ...,
+        legacy: bool = ...,
+        optimize: int = ...,
+    ) -> int: ...