Add support for Python 3.12

HISTORY.rst

@@ -20,6 +20,7 @@ test-driven methodologies, and modern toolchains for unrivaled success.
 6.1.12 (2023-??-??)
 ~~~~~~~~~~~~~~~~~~~
 
+* Added support for Python 3.12
 * Introduced a warning during the verification of MCU maximum RAM usage, signaling when the allocated RAM surpasses 100% (`issue #4791 <https://github.com/platformio/platformio-core/issues/4791>`_)
 * Drastically enhanced the speed of project building when operating in verbose mode (`issue #4783 <https://github.com/platformio/platformio-core/issues/4783>`_)
 * Upgraded the build engine to the latest version of SCons (4.6.0) to improve build performance, reliability, and compatibility with other tools and systems (`release notes <https://github.com/SCons/scons/releases/tag/4.6.0>`__)

platformio/fs.py

@@ -210,7 +210,7 @@ def change_filemtime(path, mtime):
 
 
 def rmtree(path):
-    def _onerror(func, path, __):
+    def _onexc(func, path, _):
         try:
             st_mode = os.stat(path).st_mode
             if st_mode & stat.S_IREAD:
@@ -223,4 +223,5 @@ def rmtree(path):
                 err=True,
             )
 
-    return shutil.rmtree(path, onerror=_onerror)
+    kwargs = {"onexc" if sys.version_info >= (3, 12) else "onerror": _onexc}
+    return shutil.rmtree(path, **kwargs)

platformio/util.py

@@ -170,9 +170,8 @@ def items_in_list(needle, haystack):
 
 
 def parse_datetime(datestr):
-    if "T" in datestr and "Z" in datestr:
-        return datetime.datetime.strptime(datestr, "%Y-%m-%dT%H:%M:%SZ")
-    return datetime.datetime.strptime(datestr)
+    assert "T" in datestr and "Z" in datestr
+    return datetime.datetime.strptime(datestr, "%Y-%m-%dT%H:%M:%SZ")
 
 
 def merge_dicts(d1, d2, path=None):