build(deps): bump actions/setup-python from 2 to 4

.github/workflows/build.yml

@@ -60,7 +60,7 @@ jobs:
     if: needs.check_source.outputs.run_tests == 'true'
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
+      - uses: actions/setup-python@v4
       - name: Install Dependencies
         run: |
             sudo ./.github/workflows/posix-deps-apt.sh
@@ -91,7 +91,7 @@ jobs:
     if: needs.check_source.outputs.run_tests == 'true'
     steps:
       - uses: actions/checkout@v3
-      - uses: actions/setup-python@v3
+      - uses: actions/setup-python@v4
       - name: Install Dependencies
         run: sudo ./.github/workflows/posix-deps-apt.sh
       - name: Add ccache to PATH

Include/cpython/fileutils.h

@@ -135,9 +135,7 @@ PyAPI_FUNC(wchar_t*) _Py_wrealpath(
     size_t resolved_path_len);
 #endif
 
-#ifndef MS_WINDOWS
 PyAPI_FUNC(int) _Py_isabs(const wchar_t *path);
-#endif
 
 PyAPI_FUNC(int) _Py_abspath(const wchar_t *path, wchar_t **abspath_p);
 

Lib/distutils/ccompiler.py

@@ -876,9 +876,9 @@ def executable_filename(self, basename, strip_dir=0, output_dir=''):
     def library_filename(self, libname, lib_type='static',     # or 'shared'
                          strip_dir=0, output_dir=''):
         assert output_dir is not None
-        if lib_type not in ("static", "shared", "dylib", "xcode_stub"):
+        if lib_type not in ("static", "shared", "dll", "dylib", "xcode_stub"):
             raise ValueError(
-                  "'lib_type' must be \"static\", \"shared\", \"dylib\", or \"xcode_stub\"")
+                  "'lib_type' must be \"static\", \"shared\", \"dll\", \"dylib\", or \"xcode_stub\"")
         fmt = getattr(self, lib_type + "_lib_format")
         ext = getattr(self, lib_type + "_lib_extension")
 

Lib/distutils/unixccompiler.py

@@ -75,9 +75,10 @@ class UnixCCompiler(CCompiler):
     obj_extension = ".o"
     static_lib_extension = ".a"
     shared_lib_extension = ".so"
+    dll_lib_extension = ".dll.a"
     dylib_lib_extension = ".dylib"
     xcode_stub_lib_extension = ".tbd"
-    static_lib_format = shared_lib_format = dylib_lib_format = "lib%s%s"
+    static_lib_format = shared_lib_format = dll_lib_format = dylib_lib_format = "lib%s%s"
     xcode_stub_lib_format = dylib_lib_format
     if sys.platform == "cygwin":
         exe_extension = ".exe"
@@ -265,6 +266,7 @@ def library_option(self, lib):
 
     def find_library_file(self, dirs, lib, debug=0):
         shared_f = self.library_filename(lib, lib_type='shared')
+        dll_f = self.library_filename(lib, lib_type='dll')
         dylib_f = self.library_filename(lib, lib_type='dylib')
         xcode_stub_f = self.library_filename(lib, lib_type='xcode_stub')
         static_f = self.library_filename(lib, lib_type='static')
@@ -299,6 +301,7 @@ def find_library_file(self, dirs, lib, debug=0):
 
         for dir in dirs:
             shared = os.path.join(dir, shared_f)
+            dll = os.path.join(dir, dll_f)
             dylib = os.path.join(dir, dylib_f)
             static = os.path.join(dir, static_f)
             xcode_stub = os.path.join(dir, xcode_stub_f)
@@ -316,7 +319,9 @@ def find_library_file(self, dirs, lib, debug=0):
             # data to go on: GCC seems to prefer the shared library, so I'm
             # assuming that *all* Unix C compilers do.  And of course I'm
             # ignoring even GCC's "-static" option.  So sue me.
-            if os.path.exists(dylib):
+            if os.path.exists(dll):
+                return dll
+            elif os.path.exists(dylib):
                 return dylib
             elif os.path.exists(xcode_stub):
                 return xcode_stub

Lib/os.py

@@ -682,12 +682,18 @@ def __getitem__(self, key):
     def __setitem__(self, key, value):
         key = self.encodekey(key)
         value = self.encodevalue(value)
-        putenv(key, value)
+        if sys.platform.startswith('win'):
+            putenv(str(key), str(value))
+        else:
+            putenv(key, value)
         self._data[key] = value
 
     def __delitem__(self, key):
         encodedkey = self.encodekey(key)
-        unsetenv(encodedkey)
+        if sys.platform.startswith('win'):
+            unsetenv(str(encodedkey))
+        else:
+            unsetenv(encodedkey)
         try:
             del self._data[encodedkey]
         except KeyError:

Lib/posixpath.py

@@ -243,11 +243,13 @@ def expanduser(path):
         if 'HOME' not in os.environ:
             import pwd
             try:
-                userhome = pwd.getpwuid(os.getuid()).pw_dir
+                if not sys.platform.startswith('win'):
+                    userhome = pwd.getpwuid(os.getuid()).pw_dir
             except KeyError:
                 # bpo-10496: if the current user identifier doesn't exist in the
                 # password database, return the path unchanged
                 return path
+            return path
         else:
             userhome = os.environ['HOME']
     else:

Lib/site.py

@@ -288,10 +288,6 @@ def joinuser(*args):
 def _get_path(userbase):
     version = sys.version_info
 
-    if os.name == 'nt':
-        ver_nodot = sys.winver.replace('.', '')
-        return f'{userbase}\\Python{ver_nodot}\\site-packages'
-
     if sys.platform == 'darwin' and sys._framework:
         return f'{userbase}/lib/python/site-packages'
 
@@ -365,18 +361,11 @@ def getsitepackages(prefixes=None):
         if sys.platlibdir != "lib":
             libdirs.append("lib")
 
-        if os.sep == '/':
-            for libdir in libdirs:
-                path = os.path.join(prefix, libdir,
-                                    "python%d.%d" % sys.version_info[:2],
-                                    "site-packages")
-                sitepackages.append(path)
-        else:
-            sitepackages.append(prefix)
-
-            for libdir in libdirs:
-                path = os.path.join(prefix, libdir, "site-packages")
-                sitepackages.append(path)
+        for libdir in libdirs:
+            path = os.path.join(prefix, libdir,
+                                "python%d.%d" % sys.version_info[:2],
+                                "site-packages")
+            sitepackages.append(path)
     return sitepackages
 
 def addsitepackages(known_paths, prefixes=None):

Mac/Makefile.in

@@ -13,7 +13,7 @@ exec_prefix=@exec_prefix@
 LIBDEST=$(prefix)/lib/python$(VERSION)
 RUNSHARED=@RUNSHARED@
 BUILDEXE=@BUILDEXEEXT@
-BUILDPYTHON=$(builddir)/python$(BUILDEXE)
+BUILDPYTHON=python$(BUILDEXE)
 DESTDIR=
 LDFLAGS=@LDFLAGS@
 FRAMEWORKUNIXTOOLSPREFIX=@FRAMEWORKUNIXTOOLSPREFIX@
@@ -226,7 +226,7 @@ install_Python:
 			esac; \
 		done; \
 	done
-	$(INSTALL_PROGRAM) $(STRIPFLAG) $(BUILDPYTHON) "$(DESTDIR)$(APPINSTALLDIR)/Contents/MacOS/$(PYTHONFRAMEWORK)"
+	$(INSTALL_PROGRAM) $(STRIPFLAG) $(builddir)/$(BUILDPYTHON) "$(DESTDIR)$(APPINSTALLDIR)/Contents/MacOS/$(PYTHONFRAMEWORK)"
 	sed -e "s!%bundleid%!$(PYTHONFRAMEWORKIDENTIFIER)!g" \
 		-e "s!%version%!`$(RUNSHARED) $(BUILDPYTHON) \
 		-c 'import platform; print(platform.python_version())'`!g" \

Mac/PythonLauncher/Makefile.in

@@ -11,7 +11,7 @@ builddir=	../..
 
 RUNSHARED=      @RUNSHARED@
 BUILDEXE=       @BUILDEXEEXT@
-BUILDPYTHON=    $(builddir)/python$(BUILDEXE)
+BUILDPYTHON=    python$(BUILDEXE)
 PYTHONFRAMEWORK=@PYTHONFRAMEWORK@
 
 # Deployment target selected during configure, to be checked

Makefile.pre.in

@@ -302,7 +302,8 @@ IO_OBJS=	\
 		Modules/_io/bufferedio.o \
 		Modules/_io/textio.o \
 		Modules/_io/bytesio.o \
-		Modules/_io/stringio.o
+		Modules/_io/stringio.o \
+		Modules/_io/winconsoleio.o
 
 ##########################################################################
 
@@ -456,7 +457,9 @@ LIBRARY_OBJS_OMIT_FROZEN=	\
 
 LIBRARY_OBJS=	\
 		$(LIBRARY_OBJS_OMIT_FROZEN) \
-		Python/frozen.o
+		Python/frozen.o \
+		PC/frozen_dllmain.o \
+		PC/dl_nt.o
 
 ##########################################################################
 # DTrace
@@ -626,10 +629,10 @@ sharedmods: $(BUILDPYTHON) pybuilddir.txt Modules/_math.o
 	    *\ -s*|s*) quiet="-q";; \
 	    *) quiet="";; \
 	esac; \
-	echo "$(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED)' OPT='$(OPT)' \
+	echo "$(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED) $(LIBPYTHON)' OPT='$(OPT)' \
 		_TCLTK_INCLUDES='$(TCLTK_INCLUDES)' _TCLTK_LIBS='$(TCLTK_LIBS)' \
 		$(PYTHON_FOR_BUILD) $(srcdir)/setup.py $$quiet build"; \
-	$(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED)' OPT='$(OPT)' \
+	$(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED) $(LIBPYTHON)' OPT='$(OPT)' \
 		_TCLTK_INCLUDES='$(TCLTK_INCLUDES)' _TCLTK_LIBS='$(TCLTK_LIBS)' \
 		$(PYTHON_FOR_BUILD) $(srcdir)/setup.py $$quiet build
 
@@ -823,6 +826,11 @@ Python/dynload_hpux.o: $(srcdir)/Python/dynload_hpux.c Makefile
 		-DSHLIB_EXT='"$(EXT_SUFFIX)"' \
 		-o $@ $(srcdir)/Python/dynload_hpux.c
 
+Python/dynload_win.o: $(srcdir)/Python/dynload_win.c Makefile
+	$(CC) -c $(PY_CORE_CFLAGS) \
+		-DSOABI='"$(SOABI)"' \
+		-o $@ $(srcdir)/Python/dynload_win.c
+
 Python/sysmodule.o: $(srcdir)/Python/sysmodule.c Makefile $(srcdir)/Include/pydtrace.h
 	$(CC) -c $(PY_CORE_CFLAGS) \
 		-DABIFLAGS='"$(ABIFLAGS)"' \
@@ -1284,10 +1292,10 @@ altinstall: commoninstall
 			$$ensurepip --root=$(DESTDIR)/ ; \
 	fi
 
-commoninstall:  check-clean-src @FRAMEWORKALTINSTALLFIRST@ \
+commoninstall:  check-clean-src @FRAMEWORKINSTALLFIRST@ \
 		altbininstall libinstall inclinstall libainstall \
 		sharedinstall oldsharedinstall altmaninstall \
-		@FRAMEWORKALTINSTALLLAST@
+		@FRAMEWORKINSTALLLAST@
 
 # Install shared libraries enabled by Setup
 DESTDIRS=	$(exec_prefix) $(LIBDIR) $(BINLIBDEST) $(DESTSHARED)

Modules/Setup

@@ -101,7 +101,7 @@ PYTHONPATH=$(COREPYTHONPATH)
 # This only contains the minimal set of modules required to run the
 # setup.py script in the root of the Python source tree.
 
-posix -DPy_BUILD_CORE_BUILTIN -I$(srcdir)/Include/internal posixmodule.c # posix (UNIX) system calls
+# posix -DPy_BUILD_CORE_BUILTIN -I$(srcdir)/Include/internal posixmodule.c # posix (UNIX) system calls
 errno errnomodule.c			# posix (UNIX) errno values
 pwd pwdmodule.c				# this is needed to find out the user's home dir
 					# if $HOME is not set
@@ -123,7 +123,7 @@ _thread -DPy_BUILD_CORE_BUILTIN -I$(srcdir)/Include/internal _threadmodule.c	# l
 _locale -DPy_BUILD_CORE_BUILTIN _localemodule.c  # -lintl
 
 # Standard I/O baseline
-_io -DPy_BUILD_CORE_BUILTIN -I$(srcdir)/Include/internal -I$(srcdir)/Modules/_io _io/_iomodule.c _io/iobase.c _io/fileio.c _io/bytesio.c _io/bufferedio.c _io/textio.c _io/stringio.c
+_io -DPy_BUILD_CORE_BUILTIN -I$(srcdir)/Include/internal -I$(srcdir)/Modules/_io _io/_iomodule.c _io/iobase.c _io/fileio.c _io/bytesio.c _io/bufferedio.c _io/textio.c _io/stringio.c _io/winconsoleio.c
 
 # faulthandler module
 faulthandler faulthandler.c