instances).
Also added GC support to various auxiliary types: super, property,
descriptors, wrappers, dictproxy. (Only type objects have a tp_clear
field; the other types are.)
One change was necessary to the GC infrastructure. We have statically
allocated type objects that don't have a GC header (and can't easily
be given one) and heap-allocated type objects that do have a GC
header. Giving these different metatypes would be really ugly: I
tried, and I had to modify pickle.py, cPickle.c, copy.py, add a new
invent a new name for the new metatype and make it a built-in, change
affected tests... In short, a mess. So instead, we add a new type
slot tp_is_gc, which is a simple Boolean function that determines
whether a particular instance has GC headers or not. This slot is
only relevant for types that have the (new) GC flag bit set. If the
tp_is_gc slot is NULL (by far the most common case), all instances of
the type are deemed to have GC headers. This slot is called by the
PyObject_IS_GC() macro (which is only used twice, both times in
gcmodule.c).
I also changed the extern declarations for a bunch of GC-related
functions (_PyObject_GC_Del etc.): these always exist but objimpl.h
only declared them when WITH_CYCLE_GC was defined, but I needed to be
able to reference them without #ifdefs. (When WITH_CYCLE_GC is not
defined, they do the same as their non-GC counterparts anyway.)
- The test for deepcopy() in pickles() was indented wrongly, so it got
run twice (one for binary pickle mode, one for text pickle mode; but
the test doesn't depend on the pickle mode).
- In verbose mode, show which subtest (pickle/cPickle/deepcopy, text/bin).
in run_test() referenced two non-existent variables, and in
non-verbose mode, the tests didn't report the actual number, when it
differed from the expected number. Fixed this.
Also added an extra call to gc.collect() at the start of test_all().
This will be needed when I check in the changes to add GC to new-style
classes.
from Tim Hochberg. Also mucho fiddling to change the way doctest
determines whether a thing is a function, module or class. Under 2.2,
this really requires the functions in inspect.py (e.g., types.ClassType
is close to meaningless now, if not outright misleading).
I modified nntplib so the body method can accept an
optional second parameter pointing to a filehandle or
filename (string). This way, really long body
articles can be stored to disk instead of kept in
memory. The way I made the modification should make
it easy to extend this functionality to other extended
return methods.
This is probably a little bit faster, but mostly is just cleaner code.
The old-style support is still used for Python versions < 2.2 so this
source file can be shared with PyXML.
staticness when __dynamic__ = 1 becomes the default:
- Some classes which are used to test the difference between static
and dynamic.
- Subclasses of complex: complex uses old-style numbers and the slot
wrappers used by dynamic classes only support new-style numbers.
(Ideally, the complex type should be fixed, but that looks like a
labor-intensive job.)
__rop__ now takes precendence over __op__. Those circumstances are:
- Both arguments are new-style classes
- Both arguments are new-style numbers
- Their implementation slots for tp_op differ
- Their types differ
- The right argument's type is a subtype of the left argument's type
Also did this for the ternary operator (pow) -- only the binary case
is dealt with properly though, since __rpow__ is not supported anyway.
depending on the cycle detector code in the library implementation.
This is a *slightly* different patch than SF patch #417795, but takes
the same approach. (This version avoids calling the __len__() method of
the dict in the remove() functions.)
This closes SF patch #417795.
fallback for objects that are neither supported by our dispatch table
nor have a __copy__ or __deepcopy__ method.
Changes to _reduce() in copy_reg.py to support reducing objects that
don't have a __dict__ -- copy.copy(complex()) now invokes _reduce().
Add tests for copy.copy() and copy.deepcopy() to test_regrtest.py.
getting displayed, due to a special case here whose purpose I didn't
understand. So just disabled the doc suppression here.
Another special case here skips the docs when picking apart a method
and finding that the im_func is also in the class __dict__ under
the same name. That one I understood. It has a curious consequence,
though, wrt inherited properties: a static class copies inherited stuff
into the inheriting class's dict, and that affects whether or not this
special case triggers. The upshoot is that pydoc doesn't show the
function docstrings of getter/setter/deleter functions of inherited
properties in the property section when the class is static, but does
when the class is dynamic (bring up Lib/test/pydocfodder.py under
GUI pydoc to see this).
Add raise_exception() to the _testcapi module. It isn't a test, but
the C API exists only to support test_exceptions. raise_exception()
takes two arguments -- an exception class and an integer specifying
how many arguments it should be called with.
test_exceptions uses BadException() to test the interpreter's behavior
when there is a problem instantiating the exception. test_capi1()
calls it with too many arguments. test_capi2() causes an exception to
be raised in the Python code of the constructor.
Also, add a clause to the big-if to handle message/delivery-status
content types. These create a message with subparts that are
Message instances, which best represent the header blocks of this
content type.
get_type(): Use a compiled regular expression, which can be shared.
_get_params_preserve(): A helper method which extracts the header's
parameter list preserving value quoting. I'm not sure that this
needs to be a public method. It's necessary because we want
get_param() and friends to return the unquoted parameter value,
however we want the quote-preserved form for set_boundary().
get_params(), get_param(), set_boundary(): Implement in terms of
_get_params_preserve().
walk(): Yield ourself first, then recurse over our subparts (if any).
Text.py and class Text => MIMEText.py and MIMEText
MessageRFC822.py and class MessageRFC822 => MIMEMessage.py and MIMEMessage
These are renamed so as to be more consistent; these are MIME specific
derived classes for when creating the object model out of whole cloth.
_handle_text(): If the payload is None, then just return (i.e. don't
write anything). Subparts of message/delivery-status types
will have this property since they are just blocks of headers.
Also, when raising the TypeError, include the type of the
payload in the error message.
_handle_multipart(), _handle_message(): When creating a clone of self,
pass in our _mangle_from_ and maxheaderlen flags so the clone
has the same behavior.
_handle_message_delivery_status(): New method to do the proper
printing of message/delivery-status type messages. These have
to be handled differently than other message/* types because
their payloads are subparts containing just blocks of headers.
In class DecodedGenerator:
_dispatch(): Skip over multipart/* messages since we don't care
about them, and don't want the non-text format to appear in
the printed results.
Tim Peters
Guido van Rossum
Fredrik Lundh
Skip Montanaro
Martin v. Löwis
Fred Drake
Andrew M. Kuchling
Jeremy Hylton
Thomas Wouters
Barry Warsaw