python3: enable lib2to3 to also search and fix .pyc files.

python3's lib2to3 would fail in silence if python3 and its packages are installed as compiled .pyc files. Root cause is, in Lib/lib2to3/refactor.py, the function get_all_fix_names only searches '.py' fix names.

Signed-off-by: Nj Hsiong <nj.hsiong@gmail.com>

lang/python/python3/Makefile

@@ -14,7 +14,7 @@ PYTHON_VERSION:=$(PYTHON3_VERSION)
 PYTHON_VERSION_MICRO:=$(PYTHON3_VERSION_MICRO)
 
 PKG_NAME:=python3
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 PKG_VERSION:=$(PYTHON_VERSION).$(PYTHON_VERSION_MICRO)
 
 PKG_SOURCE:=Python-$(PKG_VERSION).tar.xz

lang/python/python3/patches/017_lib2to3_fix_pyc_search.patch

@@ -0,0 +1,17 @@
+diff --git a/Lib/lib2to3/refactor.py b/Lib/lib2to3/refactor.py
+index 7841b99..1e0d3b3 100644
+--- a/Lib/lib2to3/refactor.py
++++ b/Lib/lib2to3/refactor.py
+@@ -37,6 +37,12 @@ def get_all_fix_names(fixer_pkg, remove_prefix=True):
+             if remove_prefix:
+                 name = name[4:]
+             fix_names.append(name[:-3])
++        if name.startswith("fix_") and name.endswith(".pyc"):
++            if remove_prefix:
++                name = name[4:]
++            name = name[:-4]
++            if name not in fix_names:
++                fix_names.append(name)
+     return fix_names
+ 
+