Issue #12627: Implement PEP 394 for OS X framework builds.

OS X framework builds already created versioned symlinks for all
executables and scripts installed in the framework bin directory,
of the general form ${cmd} - ${cmd}2.7.  The changes here add a
hierarchy of ${cmd} -> ${cmd}2 -> ${cmd}2.7.  Per previous
practice, all of the links are created in the framework bin
directory for both the install and altinstall targets.  This is
consistent with the long-standing recommendation to manage multiple
framework versions by adding and ordering framework bin directories
on $PATH.  Also, per past practice, symlinks to all framework bin
entries are created in $prefix/bin (by default, /usr/local/bin)
for the install target and only versioned links are created for
altinstall, although the use of these links is not recommended
for framework builds and their installation is optional with
the standard OS X installers.

Mac/Makefile.in

@@ -52,13 +52,17 @@ installapps: install_Python install_pythonw install_BuildApplet install_PythonLa
 install_pythonw: pythonw
 	$(INSTALL_PROGRAM) $(STRIPFLAG) pythonw "$(DESTDIR)$(prefix)/bin/pythonw$(VERSION)"
 	$(INSTALL_PROGRAM) $(STRIPFLAG) pythonw "$(DESTDIR)$(prefix)/bin/python$(VERSION)"
-	ln -sf python$(VERSION) "$(DESTDIR)$(prefix)/bin/python"
-	ln -sf pythonw$(VERSION) "$(DESTDIR)$(prefix)/bin/pythonw"
+	ln -sf python$(VERSION) "$(DESTDIR)$(prefix)/bin/python2"
+	ln -sf python2 "$(DESTDIR)$(prefix)/bin/python"
+	ln -sf pythonw$(VERSION) "$(DESTDIR)$(prefix)/bin/pythonw2"
+	ln -sf pythonw2 "$(DESTDIR)$(prefix)/bin/pythonw"
 ifneq ($(LIPO_32BIT_FLAGS),)
 	lipo $(LIPO_32BIT_FLAGS) -output $(DESTDIR)$(prefix)/bin/python$(VERSION)-32 pythonw
 	lipo $(LIPO_32BIT_FLAGS) -output $(DESTDIR)$(prefix)/bin/pythonw$(VERSION)-32 pythonw
-	ln -sf python$(VERSION)-32 "$(DESTDIR)$(prefix)/bin/python-32"
-	ln -sf pythonw$(VERSION)-32 "$(DESTDIR)$(prefix)/bin/pythonw-32"
+	ln -sf python$(VERSION)-32 "$(DESTDIR)$(prefix)/bin/python2-32"
+	ln -sf python2-32 "$(DESTDIR)$(prefix)/bin/python-32"
+	ln -sf pythonw$(VERSION)-32 "$(DESTDIR)$(prefix)/bin/pythonw2-32"
+	ln -sf pythonw2-32 "$(DESTDIR)$(prefix)/bin/pythonw-32"
 endif
 
 
@@ -71,6 +75,9 @@ installunixtools:
 		$(INSTALL) -d -m $(DIRMODE) "$(DESTDIR)$(FRAMEWORKUNIXTOOLSPREFIX)/bin" ;\
 	fi
 	for fn in python pythonw idle pydoc python-config smtpd.py 2to3 \
+		  python2 pythonw2 idle2 \
+		  pydoc2 python2-config smtpd2.py \
+		  2to3-2 \
 		  python$(VERSION) pythonw$(VERSION) idle$(VERSION) \
 		  pydoc$(VERSION) python$(VERSION)-config smtpd$(VERSION).py \
 		  2to3-$(VERSION) ;\
@@ -79,6 +86,7 @@ installunixtools:
 	done
 ifneq ($(LIPO_32BIT_FLAGS),)
 	for fn in python-32 pythonw-32 \
+		  python2-32 pythonw2-32 \
 		  python$(VERSION)-32 pythonw$(VERSION)-32 ;\
 	do \
 		ln -fs "$(prefix)/bin/$${fn}" "$(DESTDIR)$(FRAMEWORKUNIXTOOLSPREFIX)/bin/$${fn}" ;\
@@ -117,19 +125,18 @@ install_versionedtools:
 			continue ;\
 		fi ;\
 		mv "$(DESTDIR)$(prefix)/bin/$${fn}" "$(DESTDIR)$(prefix)/bin/$${fn}$(VERSION)"  ;\
-		ln -sf "$${fn}$(VERSION)" "$(DESTDIR)$(prefix)/bin/$${fn}" ;\
+		ln -sf "$${fn}$(VERSION)" "$(DESTDIR)$(prefix)/bin/$${fn}2" ;\
+		ln -sf "$${fn}2" "$(DESTDIR)$(prefix)/bin/$${fn}" ;\
 	done
-	if [ ! -h "$(DESTDIR)$(prefix)/bin/python-config" ]; then \
-		mv "$(DESTDIR)$(prefix)/bin/python-config" "$(DESTDIR)$(prefix)/bin/python$(VERSION)-config" ;\
-		ln -sf "python$(VERSION)-config" "$(DESTDIR)$(prefix)/bin/python-config" ; \
-	fi
 	if [ ! -h "$(DESTDIR)$(prefix)/bin/smtpd.py" ]; then \
 		mv "$(DESTDIR)$(prefix)/bin/smtpd.py" "$(DESTDIR)$(prefix)/bin/smtpd$(VERSION).py"  ;\
-		ln -sf "smtpd$(VERSION).py" "$(DESTDIR)$(prefix)/bin/smtpd.py" ;\
+		ln -sf "smtpd$(VERSION).py" "$(DESTDIR)$(prefix)/bin/smtpd2.py" ;\
+		ln -sf "smtpd2.py" "$(DESTDIR)$(prefix)/bin/smtpd.py" ;\
 	fi
 	if [ ! -h "$(DESTDIR)$(prefix)/bin/2to3" ]; then \
 		mv "$(DESTDIR)$(prefix)/bin/2to3" "$(DESTDIR)$(prefix)/bin/2to3-$(VERSION)"  ;\
-		ln -sf "2to3-$(VERSION)" "$(DESTDIR)$(prefix)/bin/2to3" ;\
+		ln -sf "2to3-$(VERSION)" "$(DESTDIR)$(prefix)/bin/2to3-2" ;\
+		ln -sf "2to3-2" "$(DESTDIR)$(prefix)/bin/2to3" ;\
 	fi
 
 

Misc/NEWS

@@ -507,6 +507,8 @@ Extension Modules
 Build
 -----
 
+- Issue #12627: Implement PEP 394 for Python 2.7 ("python2").
+
 - Issue #8746: Correct faulty configure checks so that os.chflags() and
   os.lchflags() are once again built on systems that support these
   functions (*BSD and OS X).  Also add new stat file flags for OS X