More fixes for PEP 3147 compliance in packaging (#11254)

2 files changed, 8 insertions, 4 deletions

diff --git a/Lib/packaging/command/build_py.py b/Lib/packaging/command/build_py.py
index 0eafffa..e5b10b0 100644
--- a/Lib/packaging/command/build_py.py
+++ b/Lib/packaging/command/build_py.py
@@ -1,6 +1,7 @@
 """Build pure Python modules (just copy to build directory)."""
 
 import os
+import imp
 import sys
 from glob import glob
 
@@ -330,9 +331,10 @@ class build_py(Command, Mixin2to3):
             outputs.append(filename)
             if include_bytecode:
                 if self.compile:
-                    outputs.append(filename + "c")
+                    outputs.append(imp.cache_from_source(filename))
                 if self.optimize > 0:
-                    outputs.append(filename + "o")
+                    outputs.append(imp.cache_from_source(filename,
+                                                         debug_override=False))
 
         outputs += [
             os.path.join(build_dir, filename)
diff --git a/Lib/packaging/command/install_lib.py b/Lib/packaging/command/install_lib.py
index 5e81b41..558966d 100644
--- a/Lib/packaging/command/install_lib.py
+++ b/Lib/packaging/command/install_lib.py
@@ -1,6 +1,7 @@
 """Install all modules (extensions and pure Python)."""
 
 import os
+import imp
 import sys
 import logging
 
@@ -172,9 +173,10 @@ class install_lib(Command):
             if ext != PYTHON_SOURCE_EXTENSION:
                 continue
             if self.compile:
-                bytecode_files.append(py_file + "c")
+                bytecode_files.append(imp.cache_from_source(py_file))
             if self.optimize > 0:
-                bytecode_files.append(py_file + "o")
+                bytecode_files.append(imp.cache_from_source(
+                    py_file, debug_override=False))
 
         return bytecode_files