diff --git a/.gitignore b/.gitignore
index 59d3832..2454870 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,8 +27,8 @@
 Modules/Setup.local
 Modules/config.c
 Modules/ld_so_aix
-Modules/_freeze_importlib
-Modules/_testembed
+Programs/_freeze_importlib
+Programs/_testembed
 PCbuild/*.bsc
 PCbuild/*.dll
 PCbuild/*.exe
diff --git a/.hgignore b/.hgignore
index 4dc93c4..562dac9 100644
--- a/.hgignore
+++ b/.hgignore
@@ -89,8 +89,8 @@
 Tools/unicode/MAPPINGS/
 BuildLog.htm
 __pycache__
-Modules/_freeze_importlib
-Modules/_testembed
+Programs/_freeze_importlib
+Programs/_testembed
 .coverage
 coverage/
 htmlcov/
diff --git a/.hgtouch b/.hgtouch
index 00efbef..b9be0f1 100644
--- a/.hgtouch
+++ b/.hgtouch
@@ -2,7 +2,7 @@
 # Define dependencies of generated files that are checked into hg.
 # The syntax of this file uses make rule dependencies, without actions
 
-Python/importlib.h: Lib/importlib/_bootstrap.py Modules/_freeze_importlib.c
+Python/importlib.h: Lib/importlib/_bootstrap.py Programs/_freeze_importlib.c
 
 Include/opcode.h:  Lib/opcode.py Tools/scripts/generate_opcode_h.py
 
diff --git a/Makefile.pre.in b/Makefile.pre.in
index 43bc818..03875ef 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -466,7 +466,7 @@
 
 # Default target
 all:		build_all
-build_all:	$(BUILDPYTHON) oldsharedmods sharedmods gdbhooks Modules/_testembed python-config
+build_all:	$(BUILDPYTHON) oldsharedmods sharedmods gdbhooks Programs/_testembed python-config
 
 # Compile a binary with gcc profile guided optimization.
 profile-opt:
@@ -539,8 +539,8 @@
 	$(RUNSHARED) $(PYTHON_FOR_BUILD) ./Tools/clinic/clinic.py --make
 
 # Build the interpreter
-$(BUILDPYTHON):	Modules/python.o $(LIBRARY) $(LDLIBRARY) $(PY3LIBRARY)
-	$(LINKCC) $(PY_LDFLAGS) $(LINKFORSHARED) -o $@ Modules/python.o $(BLDLIBRARY) $(LIBS) $(MODLIBS) $(SYSLIBS) $(LDLAST)
+$(BUILDPYTHON):	Programs/python.o $(LIBRARY) $(LDLIBRARY) $(PY3LIBRARY)
+	$(LINKCC) $(PY_LDFLAGS) $(LINKFORSHARED) -o $@ Programs/python.o $(BLDLIBRARY) $(LIBS) $(MODLIBS) $(SYSLIBS) $(LDLAST)
 
 platform: $(BUILDPYTHON) pybuilddir.txt
 	$(RUNSHARED) $(PYTHON_FOR_BUILD) -c 'import sys ; from sysconfig import get_platform ; print(get_platform()+"-"+sys.version[0:3])' >platform
@@ -665,18 +665,18 @@
 		echo "-----------------------------------------------"; \
 	fi
 
-Modules/_testembed: Modules/_testembed.o $(LIBRARY) $(LDLIBRARY) $(PY3LIBRARY)
-	$(LINKCC) $(PY_LDFLAGS) $(LINKFORSHARED) -o $@ Modules/_testembed.o $(BLDLIBRARY) $(LIBS) $(MODLIBS) $(SYSLIBS) $(LDLAST)
+Programs/_testembed: Programs/_testembed.o $(LIBRARY) $(LDLIBRARY) $(PY3LIBRARY)
+	$(LINKCC) $(PY_LDFLAGS) $(LINKFORSHARED) -o $@ Programs/_testembed.o $(BLDLIBRARY) $(LIBS) $(MODLIBS) $(SYSLIBS) $(LDLAST)
 
 ############################################################################
 # Importlib
 
-Modules/_freeze_importlib: Modules/_freeze_importlib.o $(LIBRARY_OBJS_OMIT_FROZEN)
-	$(LINKCC) $(PY_LDFLAGS) -o $@ Modules/_freeze_importlib.o $(LIBRARY_OBJS_OMIT_FROZEN) $(LIBS) $(MODLIBS) $(SYSLIBS) $(LDLAST)
+Programs/_freeze_importlib: Programs/_freeze_importlib.o $(LIBRARY_OBJS_OMIT_FROZEN)
+	$(LINKCC) $(PY_LDFLAGS) -o $@ Programs/_freeze_importlib.o $(LIBRARY_OBJS_OMIT_FROZEN) $(LIBS) $(MODLIBS) $(SYSLIBS) $(LDLAST)
 
-Python/importlib.h: $(srcdir)/Lib/importlib/_bootstrap.py Modules/_freeze_importlib.c
-	$(MAKE) Modules/_freeze_importlib
-	./Modules/_freeze_importlib \
+Python/importlib.h: $(srcdir)/Lib/importlib/_bootstrap.py Programs/_freeze_importlib.c
+	$(MAKE) Programs/_freeze_importlib
+	./Programs/_freeze_importlib \
 		$(srcdir)/Lib/importlib/_bootstrap.py Python/importlib.h
 
 
@@ -704,11 +704,11 @@
 		-DVPATH='"$(VPATH)"' \
 		-o $@ $(srcdir)/Modules/getpath.c
 
-Modules/python.o: $(srcdir)/Modules/python.c
-	$(MAINCC) -c $(PY_CORE_CFLAGS) -o $@ $(srcdir)/Modules/python.c
+Programs/python.o: $(srcdir)/Programs/python.c
+	$(MAINCC) -c $(PY_CORE_CFLAGS) -o $@ $(srcdir)/Programs/python.c
 
-Modules/_testembed.o: $(srcdir)/Modules/_testembed.c
-	$(MAINCC) -c $(PY_CORE_CFLAGS) -o $@ $(srcdir)/Modules/_testembed.c
+Programs/_testembed.o: $(srcdir)/Programs/_testembed.c
+	$(MAINCC) -c $(PY_CORE_CFLAGS) -o $@ $(srcdir)/Programs/_testembed.c
 
 Modules/_sre.o: $(srcdir)/Modules/_sre.c $(srcdir)/Modules/sre.h $(srcdir)/Modules/sre_constants.h $(srcdir)/Modules/sre_lib.h
 
@@ -922,7 +922,7 @@
 		$(PARSER_HEADERS) \
 		$(AST_H)
 
-$(LIBRARY_OBJS) $(MODOBJS) Modules/python.o: $(PYTHON_HEADERS)
+$(LIBRARY_OBJS) $(MODOBJS) Programs/python.o: $(PYTHON_HEADERS)
 
 
 ######################################################################
@@ -1332,7 +1332,7 @@
 		fi; \
 	fi
 	$(INSTALL_DATA) Modules/config.c $(DESTDIR)$(LIBPL)/config.c
-	$(INSTALL_DATA) Modules/python.o $(DESTDIR)$(LIBPL)/python.o
+	$(INSTALL_DATA) Programs/python.o $(DESTDIR)$(LIBPL)/python.o
 	$(INSTALL_DATA) $(srcdir)/Modules/config.c.in $(DESTDIR)$(LIBPL)/config.c.in
 	$(INSTALL_DATA) Makefile $(DESTDIR)$(LIBPL)/Makefile
 	$(INSTALL_DATA) Modules/Setup $(DESTDIR)$(LIBPL)/Setup
@@ -1343,10 +1343,10 @@
 	$(INSTALL_SCRIPT) $(srcdir)/install-sh $(DESTDIR)$(LIBPL)/install-sh
 	$(INSTALL_SCRIPT) python-config.py $(DESTDIR)$(LIBPL)/python-config.py
 	$(INSTALL_SCRIPT) python-config $(DESTDIR)$(BINDIR)/python$(LDVERSION)-config
-	@if [ -s Modules/python.exp -a \
+	@if [ -s Programs/python.exp -a \
 		"`echo $(MACHDEP) | sed 's/^\(...\).*/\1/'`" = "aix" ]; then \
 		echo; echo "Installing support files for building shared extension modules on AIX:"; \
-		$(INSTALL_DATA) Modules/python.exp		\
+		$(INSTALL_DATA) Programs/python.exp		\
 				$(DESTDIR)$(LIBPL)/python.exp;		\
 		echo; echo "$(LIBPL)/python.exp";		\
 		$(INSTALL_SCRIPT) $(srcdir)/Modules/makexp_aix	\
@@ -1526,7 +1526,7 @@
 	find build -name '*.py[co]' -exec rm -f {} ';' || true
 	-rm -f pybuilddir.txt
 	-rm -f Lib/lib2to3/*Grammar*.pickle
-	-rm -f Modules/_testembed Modules/_freeze_importlib
+	-rm -f Programs/_testembed Programs/_freeze_importlib
 
 profile-removal:
 	find . -name '*.gc??' -exec rm -f {} ';'
@@ -1550,7 +1550,7 @@
 	done
 	-rm -f core Makefile Makefile.pre config.status \
 		Modules/Setup Modules/Setup.local Modules/Setup.config \
-		Modules/ld_so_aix Modules/python.exp Misc/python.pc
+		Modules/ld_so_aix Programs/python.exp Misc/python.pc
 	-rm -f python*-gdb.py
 	find $(srcdir)/[a-zA-Z]* '(' -name '*.fdc' -o -name '*~' \
 				     -o -name '[@,#]*' -o -name '*.old' \
diff --git a/Modules/README b/Modules/README
new file mode 100644
index 0000000..9b79f53
--- /dev/null
+++ b/Modules/README
@@ -0,0 +1,2 @@
+Source files for standard library extension modules,
+and former extension modules that are now builtin modules.
diff --git a/Objects/README b/Objects/README
new file mode 100644
index 0000000..854b103
--- /dev/null
+++ b/Objects/README
@@ -0,0 +1 @@
+Source files for various builtin objects
diff --git a/PCbuild/_freeze_importlib.vcxproj b/PCbuild/_freeze_importlib.vcxproj
index 55197af..e133e02 100644
--- a/PCbuild/_freeze_importlib.vcxproj
+++ b/PCbuild/_freeze_importlib.vcxproj
@@ -167,7 +167,7 @@
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemGroup>
-    <ClCompile Include="..\Modules\_freeze_importlib.c" />
+    <ClCompile Include="..\Programs\_freeze_importlib.c" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="pythoncore.vcxproj">
@@ -185,4 +185,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/PCbuild/_freeze_importlib.vcxproj.filters b/PCbuild/_freeze_importlib.vcxproj.filters
index 50ec193..ccad053 100644
--- a/PCbuild/_freeze_importlib.vcxproj.filters
+++ b/PCbuild/_freeze_importlib.vcxproj.filters
@@ -15,7 +15,7 @@
     </Filter>
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="..\Modules\_freeze_importlib.c">
+    <ClCompile Include="..\Programs\_freeze_importlib.c">
       <Filter>Source Files</Filter>
     </ClCompile>
   </ItemGroup>
@@ -24,4 +24,4 @@
       <Filter>Source Files</Filter>
     </None>
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/PCbuild/python.vcxproj b/PCbuild/python.vcxproj
index 5387343..6cb4ef5 100644
--- a/PCbuild/python.vcxproj
+++ b/PCbuild/python.vcxproj
@@ -510,7 +510,7 @@
     <ResourceCompile Include="..\PC\python_exe.rc" />
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="..\Modules\python.c" />
+    <ClCompile Include="..\Programs\python.c" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="pythoncore.vcxproj">
diff --git a/PCbuild/python.vcxproj.filters b/PCbuild/python.vcxproj.filters
index e4906a4..0662a4e 100644
--- a/PCbuild/python.vcxproj.filters
+++ b/PCbuild/python.vcxproj.filters
@@ -19,8 +19,8 @@
     </ResourceCompile>
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="..\Modules\python.c">
+    <ClCompile Include="..\Programs\python.c">
       <Filter>Source Files</Filter>
     </ClCompile>
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/Programs/README b/Programs/README
new file mode 100644
index 0000000..c24578b
--- /dev/null
+++ b/Programs/README
@@ -0,0 +1 @@
+Source files for binary executables (as opposed to shared modules)
diff --git a/Modules/_freeze_importlib.c b/Programs/_freeze_importlib.c
similarity index 100%
rename from Modules/_freeze_importlib.c
rename to Programs/_freeze_importlib.c
diff --git a/Modules/_testembed.c b/Programs/_testembed.c
similarity index 100%
rename from Modules/_testembed.c
rename to Programs/_testembed.c
diff --git a/Modules/python.c b/Programs/python.c
similarity index 100%
rename from Modules/python.c
rename to Programs/python.c
diff --git a/Python/README b/Python/README
new file mode 100644
index 0000000..153b628
--- /dev/null
+++ b/Python/README
@@ -0,0 +1 @@
+Miscellaneous source files for the main Python shared library