Surprising fix for SF bug 563060: module can be used as base class.
Change the module constructor (module_init) to have the signature
__init__(name:str, doc=None); this prevents the call from type_new()
to succeed. While we're at it, prevent repeated calling of
module_init for the same module from leaking the dict, changing the
semantics so that __dict__ is only initialized if NULL.
Also adding a unittest, test_module.py.
This is an incompatibility with 2.2, if anybody was instantiating the
module class before, their argument list was probably empty; so this
can't be backported to 2.2.x.
diff --git a/Misc/NEWS b/Misc/NEWS
index c3224da..c90dd7f 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -6,6 +6,13 @@
Core and builtins
+- The constructor for the module type now requires a name argument and
+ takes an optional docstring argument. Previously, this constructor
+ ignored its arguments. As a consequence, deriving a class from a
+ module (not from the module type) is now illegal; previously this
+ created an unnamed module, just like invoking the module type did.
+ [SF bug 563060]
+
- A new warning PendingDeprecationWarning was added to provide
direction on features which are in the process of being deprecated.
The warning will not be printed by default. To see the pending