updated to python 3.9.6

Author: chcg

PythonLib/full/_aix_support.py

@@ -15,8 +15,9 @@ def _aix_tag(vrtl, bd):
     # type: (List[int], int) -> str
     # Infer the ABI bitwidth from maxsize (assuming 64 bit as the default)
     _sz = 32 if sys.maxsize == (2**31-1) else 64
+    _bd = bd if bd != 0 else 9988
     # vrtl[version, release, technology_level]
-    return "aix-{:1x}{:1d}{:02d}-{:04d}-{}".format(vrtl[0], vrtl[1], vrtl[2], bd, _sz)
+    return "aix-{:1x}{:1d}{:02d}-{:04d}-{}".format(vrtl[0], vrtl[1], vrtl[2], _bd, _sz)
 
 
 # extract version, release and technology level from a VRMF string
@@ -26,19 +27,20 @@ def _aix_vrtl(vrmf):
     return [int(v[-1]), int(r), int(tl)]
 
 
-def _aix_bosmp64():
+def _aix_bos_rte():
     # type: () -> Tuple[str, int]
     """
     Return a Tuple[str, int] e.g., ['7.1.4.34', 1806]
-    The fileset bos.mp64 is the AIX kernel. It's VRMF and builddate
-    reflect the current ABI levels of the runtime environment.
+    The fileset bos.rte represents the current AIX run-time level. It's VRMF and
+    builddate reflect the current ABI levels of the runtime environment.
+    If no builddate is found give a value that will satisfy pep425 related queries
     """
-    # We expect all AIX systems to have lslpp installed in this location
-    out = subprocess.check_output(["/usr/bin/lslpp", "-Lqc", "bos.mp64"])
+    # All AIX systems to have lslpp installed in this location
+    out = subprocess.check_output(["/usr/bin/lslpp", "-Lqc", "bos.rte"])
     out = out.decode("utf-8")
     out = out.strip().split(":")  # type: ignore
-    # Use str() and int() to help mypy see types
-    return (str(out[2]), int(out[-1]))
+    _bd = int(out[-1]) if out[-1] != '' else 9988
+    return (str(out[2]), _bd)
 
 
 def aix_platform():
@@ -47,11 +49,11 @@ def aix_platform():
     AIX filesets are identified by four decimal values: V.R.M.F.
     V (version) and R (release) can be retreived using ``uname``
     Since 2007, starting with AIX 5.3 TL7, the M value has been
-    included with the fileset bos.mp64 and represents the Technology
+    included with the fileset bos.rte and represents the Technology
     Level (TL) of AIX. The F (Fix) value also increases, but is not
     relevant for comparing releases and binary compatibility.
     For binary compatibility the so-called builddate is needed.
-    Again, the builddate of an AIX release is associated with bos.mp64.
+    Again, the builddate of an AIX release is associated with bos.rte.
     AIX ABI compatibility is described  as guaranteed at: https://www.ibm.com/\
     support/knowledgecenter/en/ssw_aix_72/install/binary_compatability.html
 
@@ -60,7 +62,7 @@ def aix_platform():
     e.g., "aix-6107-1415-32" for AIX 6.1 TL7 bd 1415, 32-bit
     and, "aix-6107-1415-64" for AIX 6.1 TL7 bd 1415, 64-bit
     """
-    vrmf, bd = _aix_bosmp64()
+    vrmf, bd = _aix_bos_rte()
     return _aix_tag(_aix_vrtl(vrmf), bd)
 
 
@@ -79,7 +81,7 @@ def aix_buildtag():
     Return the platform_tag of the system Python was built on.
     """
     # AIX_BUILDDATE is defined by configure with:
-    # lslpp -Lcq bos.mp64 | awk -F:  '{ print $NF }'
+    # lslpp -Lcq bos.rte | awk -F:  '{ print $NF }'
     build_date = sysconfig.get_config_var("AIX_BUILDDATE")
     try:
         build_date = int(build_date)

PythonLib/full/_strptime.py

@@ -201,7 +201,7 @@ def __init__(self, locale_time=None):
             #XXX: Does 'Y' need to worry about having less or more than
             #     4 digits?
             'Y': r"(?P<Y>\d\d\d\d)",
-            'z': r"(?P<z>[+-]\d\d:?[0-5]\d(:?[0-5]\d(\.\d{1,6})?)?|Z)",
+            'z': r"(?P<z>[+-]\d\d:?[0-5]\d(:?[0-5]\d(\.\d{1,6})?)?|(?-i:Z))",
             'A': self.__seqToRE(self.locale_time.f_weekday, 'A'),
             'a': self.__seqToRE(self.locale_time.a_weekday, 'a'),
             'B': self.__seqToRE(self.locale_time.f_month[1:], 'B'),

PythonLib/full/abc.py

@@ -28,7 +28,14 @@ def my_abstract_method(self, ...):
 class abstractclassmethod(classmethod):
     """A decorator indicating abstract classmethods.
 
-    Deprecated, use 'classmethod' with 'abstractmethod' instead.
+    Deprecated, use 'classmethod' with 'abstractmethod' instead:
+
+        class C(ABC):
+            @classmethod
+            @abstractmethod
+            def my_abstract_classmethod(cls, ...):
+                ...
+
     """
 
     __isabstractmethod__ = True
@@ -41,7 +48,14 @@ def __init__(self, callable):
 class abstractstaticmethod(staticmethod):
     """A decorator indicating abstract staticmethods.
 
-    Deprecated, use 'staticmethod' with 'abstractmethod' instead.
+    Deprecated, use 'staticmethod' with 'abstractmethod' instead:
+
+        class C(ABC):
+            @staticmethod
+            @abstractmethod
+            def my_abstract_staticmethod(...):
+                ...
+
     """
 
     __isabstractmethod__ = True
@@ -54,7 +68,14 @@ def __init__(self, callable):
 class abstractproperty(property):
     """A decorator indicating abstract properties.
 
-    Deprecated, use 'property' with 'abstractmethod' instead.
+    Deprecated, use 'property' with 'abstractmethod' instead:
+
+        class C(ABC):
+            @property
+            @abstractmethod
+            def my_abstract_property(self):
+                ...
+
     """
 
     __isabstractmethod__ = True

PythonLib/full/ast.py

@@ -1448,9 +1448,9 @@ def visit_Call(self, node):
 
     def visit_Subscript(self, node):
         def is_simple_tuple(slice_value):
-            # when unparsing a non-empty tuple, the parantheses can be safely
+            # when unparsing a non-empty tuple, the parentheses can be safely
             # omitted if there aren't any elements that explicitly requires
-            # parantheses (such as starred expressions).
+            # parentheses (such as starred expressions).
             return (
                 isinstance(slice_value, Tuple)
                 and slice_value.elts

PythonLib/full/bdb.py

@@ -117,7 +117,7 @@ def dispatch_call(self, frame, arg):
         """Invoke user function and return trace function for call event.
 
         If the debugger stops on this function call, invoke
-        self.user_call(). Raise BbdQuit if self.quitting is set.
+        self.user_call(). Raise BdbQuit if self.quitting is set.
         Return self.trace_dispatch to continue tracing in this scope.
         """
         # XXX 'arg' is no longer used

PythonLib/full/bz2.py

@@ -226,15 +226,23 @@ def write(self, data):
         """Write a byte string to the file.
 
         Returns the number of uncompressed bytes written, which is
-        always len(data). Note that due to buffering, the file on disk
-        may not reflect the data written until close() is called.
+        always the length of data in bytes. Note that due to buffering,
+        the file on disk may not reflect the data written until close()
+        is called.
         """
         with self._lock:
             self._check_can_write()
+            if isinstance(data, (bytes, bytearray)):
+                length = len(data)
+            else:
+                # accept any data that supports the buffer protocol
+                data = memoryview(data)
+                length = data.nbytes
+
             compressed = self._compressor.compress(data)
             self._fp.write(compressed)
-            self._pos += len(data)
-            return len(data)
+            self._pos += length
+            return length
 
     def writelines(self, seq):
         """Write a sequence of byte strings to the file.

PythonLib/full/configparser.py

@@ -907,6 +907,9 @@ def write(self, fp, space_around_delimiters=True):
 
         If `space_around_delimiters' is True (the default), delimiters
         between keys and values are surrounded by spaces.
+
+        Please note that comments in the original configuration file are not
+        preserved when writing the configuration back.
         """
         if space_around_delimiters:
             d = " {} ".format(self._delimiters[0])
@@ -1005,7 +1008,7 @@ def _read(self, fp, fpname):
         Configuration files may include comments, prefixed by specific
         characters (`#' and `;' by default). Comments may appear on their own
         in an otherwise empty line or may be entered in lines holding values or
-        section names.
+        section names. Please note that comments get stripped off when reading configuration files.
         """
         elements_added = set()
         cursect = None                        # None, or a dictionary

PythonLib/full/dataclasses.py

@@ -944,7 +944,7 @@ def _process_class(cls, init, repr, eq, order, unsafe_hash, frozen):
         _set_new_attribute(cls, '__repr__', _repr_fn(flds, globals))
 
     if eq:
-        # Create _eq__ method.  There's no need for a __ne__ method,
+        # Create __eq__ method.  There's no need for a __ne__ method,
         # since python will call __eq__ and negate it.
         flds = [f for f in field_list if f.compare]
         self_tuple = _tuple_str('self', flds)

PythonLib/full/distutils/command/upload.py

@@ -9,7 +9,8 @@
 import io
 import hashlib
 from base64 import standard_b64encode
-from urllib.request import urlopen, Request, HTTPError
+from urllib.error import HTTPError
+from urllib.request import urlopen, Request
 from urllib.parse import urlparse
 from distutils.errors import DistutilsError, DistutilsOptionError
 from distutils.core import PyPIRCCommand

PythonLib/full/distutils/spawn.py

@@ -59,13 +59,17 @@ def spawn(cmd, search_path=1, verbose=0, dry_run=0):
             if _cfg_target:
                 _cfg_target_split = [int(x) for x in _cfg_target.split('.')]
         if _cfg_target:
-            # ensure that the deployment target of build process is not less
-            # than that used when the interpreter was built. This ensures
-            # extension modules are built with correct compatibility values
+            # Ensure that the deployment target of the build process is not
+            # less than 10.3 if the interpreter was built for 10.3 or later.
+            # This ensures extension modules are built with correct
+            # compatibility values, specifically LDSHARED which can use
+            # '-undefined dynamic_lookup' which only works on >= 10.3.
             cur_target = os.environ.get('MACOSX_DEPLOYMENT_TARGET', _cfg_target)
-            if _cfg_target_split > [int(x) for x in cur_target.split('.')]:
+            cur_target_split = [int(x) for x in cur_target.split('.')]
+            if _cfg_target_split[:2] >= [10, 3] and cur_target_split[:2] < [10, 3]:
                 my_msg = ('$MACOSX_DEPLOYMENT_TARGET mismatch: '
-                          'now "%s" but "%s" during configure'
+                          'now "%s" but "%s" during configure;'
+                          'must use 10.3 or later'
                                 % (cur_target, _cfg_target))
                 raise DistutilsPlatformError(my_msg)
             env = dict(os.environ,