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are overflowing and a long int operation is substituted.
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new slot tp_iter in type object, plus new flag Py_TPFLAGS_HAVE_ITER
new C API PyObject_GetIter(), calls tp_iter
new builtin iter(), with two forms: iter(obj), and iter(function, sentinel)
new internal object types iterobject and calliterobject
new exception StopIteration
new opcodes for "for" loops, GET_ITER and FOR_ITER (also supported by dis.py)
new magic number for .pyc files
new special method for instances: __iter__() returns an iterator
iteration over dictionaries: "for x in dict" iterates over the keys
iteration over files: "for x in file" iterates over lines
TODO:
documentation
test suite
decide whether to use a different way to spell iter(function, sentinal)
decide whether "for key in dict" is a good idea
use iterators in map/filter/reduce, min/max, and elsewhere (in/not in?)
speed tuning (make next() a slot tp_next???)
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location information for the SyntaxError -- do not do more than we
need to, stopping as soon as an exception has been raised.
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module__doc__: Document the Warning subclass heirarchy.
make_class(): Added a "goto finally" so that if populate_methods()
fails, the return status will be -1 (failure) instead of 0 (success).
fini_exceptions(): When decref'ing the static pointers to the
exception classes, clear out their dictionaries too. This breaks a
cycle from class->dict->method->class and allows the classes with
unbound methods to be reclaimed. This plugs a large memory leak in a
common Py_Initialize()/dosomething/Py_Finalize() loop.
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etc.).
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Changes to error messages to increase consistency & clarity.
This (mostly) closes SourceForge patch #101839.
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First, the allocated buffer was never freed after using it to create
the PyString object. Second, it was possible that have_filename would
be false (meaning that filename was not a PyString object), but that
the code would still try to PyString_GET_SIZE() it.
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returning a pointer to the start of the file's "base" name;
similar to os.path.basename().
SyntaxError__str__(): Use my_basename() to keep the length of the
file name included in the exception message short.
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than depending on the site that raises the exception. If the
filename and lineno attributes are set on the exception object,
use them to augment the message displayed.
This is part of what is needed to close SoruceForge bug #110628
(Jitterbug PR#278).
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the previous exceptions.py have WindowsError as a sub-class of OSError.
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('PyObject** x' -> 'PyObject **x')
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comments, docstrings or error messages. I fixed two minor things in
test_winreg.py ("didn't" -> "Didn't" and "Didnt" -> "Didn't").
There is a minor style issue involved: Guido seems to have preferred English
grammar (behaviour, honour) in a couple places. This patch changes that to
American, which is the more prominent style in the source. I prefer English
myself, so if English is preferred, I'd be happy to supply a patch myself ;)
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used for indentation related errors. This patch includes Ping's
improvements for indentation-related error messages.
Closes SourceForge patches #100734 and #100856.
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variable. This crushes another memory leak. Slight rewrite
included.
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`break's. This first missing break caused a memory leak when case 3
fell through case 2 in the following example:
import os
os.chmod('/missing', 0600)
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another typo caught by Rob Hooft
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