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...Cast pointer arguments Existing cast Currently, most macros accepting pointers cast pointer arguments to their expected types. For example, in Python 3.6, the Py_TYPE() macro casts its argument to PyObject*: #define Py_TYPE(ob) (((PyObject*)(ob))->ob_type) The Py_TYPE() macro accepts the PyObject* type, but also any pointer types, such as PyLongObject* and PyDictObject*. Add a new macro to keep the cast When a macro is converted to a function and the macro casts at least one of its argum...
...cast to an int *, allowing to write int values into the first field. For Python, PyObject_HEAD and PyObject_VAR_HEAD will be changed to not list all fields anymore, but list a single field of type PyObject/PyVarObject: typedef struct _object { _PyObject_HEAD_EXTRA Py_ssize_t ob_refcnt; struct _typeobject *ob_type; } PyObject; typedef struct { PyObject ob_base; Py_ssize_t ob_size; } PyVarObject; #define PyObject_HEAD PyObject ob_base; #define PyObject_VAR_HEAD PyVarObject o...
...cast a single vote with no ability to revise their vote later. [no-changes] If you are not absolutely sure of your choices, hold off casting your ballot until later in the voting period. Votes cast on the last day of the election are just as valid as the ones cast on the first day. While the CIVS system does not provide an option for a "Pure" Condorcet election, any Condorcet method will select the "Pure" Condorcet winner if one exists and otherwise only vary if one doesn't exist. The CIVS syste...
...cast a single vote where they had the right to cast two. Several observers were also present, both nominees and invited guests. 2 Election of Nominated Members The individual nominations and summaries/recommendations were made on the psf-members mailing list and recorded in the PSF private wiki, and were not reviewed. There was no discussion. All proposed nominated members were elected (vote counts in parentheses, for-against-abstain): Christopher Armstrong (40-0-17) Jim Bak...
...Cast of Characters Alongside Python, there are a host of other tools and technologies in use: Twisted, as the basis for all application networking Nevow for much of the Web-based UI MochiKit for Javascript-based browser functionality PyDot for dependency graph rendering, and to draw workflow diagrams for our integrated workflow editor. PyDot relies on graphviz and pyparsing Python for Windows extensions for client-side integration with MS Office (Project, Excel, Word) Jabber for backoffice com...
...CAST(some_value, Py_ssize_t, int); This will add an assertion in debug mode that the value really fits into an int, and just add a cast otherwise. statically determine that the value shouldn't overflow an int unless there is a bug in the C code somewhere. Test whether the value is smaller than INT_MAX, and raise an InternalError if it isn't. otherwise, check whether the value fits an int, and raise a ValueError if it doesn't. The same care must be taken for tp_as_sequence slots, in addition...
...cast to int and back (well, not exactly, even this has some limitations as pointed out by issue #22206). However, as issue #25658 points out, there are at least some platforms (namely Cygwin, CloudABI, but likely others as well) which have otherwise modern and POSIX-compliant pthreads implementations, but are not compatible with Python's API because their pthread_key_t is defined in a way that cannot be safely cast to int. In fact, the possibility of running into this problem was raised by MvL ...
...cast(t, x) call tells the type checker that we are confident that the type of x is t. At runtime a cast always returns the expression unchanged -- it does not check the type, and it does not convert or coerce the value. Casts differ from type comments (see the previous section). When using a type comment, the type checker should still verify that the inferred type is consistent with the stated type. When using a cast, the type checker should blindly believe the programmer. Also, casts can be...
...cast a negative vote. In practice, nominating a person for a core developer should often meet with surprise by others that this person is not a core developer yet. In other words, it should be done when the candidate is already known and trusted well enough by others. We should avoid nominations based on potential. Votes of no confidence Removing a core developer from the core team; Disbanding the experts team for a given area of interest. Those describe a situation where a core developer i...
...casts between object and data types. While this feature allows for quick and flexible code, it is the responsibility of the programmer to make explicit the data types that a function expects. A standard coding style that names variables according to their expected data type is an easy way to address this problem. A 30-day evaluation of Ultraseek 5.2 is available for download at http://www.verity.com/. About the Author Ryan Weisenberger is a software developer and project lead for Verity Ultras...
...cast this absentee ballot for elections and resolutions under consideration at the PSF member meeting to be held at PyCon 2008 at the Crowne Plaza Chicago O'Hare hotel on March 14, 2008, from 12:40 pm. Election of Nominated Members The following people have been nominated for membership in the PSF. To be elected, a nominee must receive more "Yes" votes than "No" votes. Please vote to accept as a new nominated member (check one of "Yes", "No", or "Abs...
...cast a wide net while taking pictures, to be certain to capture the images that would interest him. Once we had the camera, we took hundreds of pictures, and showed Nat how to look through them on the computer using an off-the-shelf image viewer called ThumbsPlus. Watching Nat flip through pictures, though, I noticed something: once he became familiar with the sequence of the pictures, he was clicking on the pictures as if it mattered where he clicked. The image viewer didn't care: any click o...
...casts to float() in various parts through the code. Python's numerical model stems from C, while a model that might be easier to work with can be based on the mathematical understanding of numbers. Other Numerical Models Perl's numerical model is that there is one type of numbers -- floating point numbers. While it is consistent and superficially non-surprising, it tends to have subtle gotchas. One of these is that printing numbers is very tricky, and requires correct rounding. In Perl, th...
...cast electronically via email during the voting period which began on 2010-08-10 and ended on 2010-08-23. 7.1 Election Results 7.1.1 Election of Nominated Members The individual nominations and summaries/recommendations were made on the psf-members mailing list and recorded in the PSF private wiki. All proposed nominated members were elected (vote counts in parentheses, yes-no-abstain): Noah Gift (49-6-24) Laurens Van Houtven (44-2-33) Terry Peppers (44-2-33)...
...casting: cast('<type>', value) base classes: class C(Tuple['<type>', '<type>']): ... Depending on the specific case, some of the cases listed above might be worked around by placing the usage in a if TYPE_CHECKING: block. This will not work for any code that needs to be available at runtime, notably for base classes and casting. For named tuples, using the new class definition syntax introduced in Python 3.6 solves the issue. In general, fixing the issue for all forward...
...cast this absentee ballot for elections and resolutions under consideration at the PSF member meeting to be held at the Dallas/Addison Marriott Quorum By The Galleria hotel on February 23, 2007 from 6:40-8:40 pm. Election of Nominated Members The following people have been nominated for membership in the PSF. To be elected, a nominee must receive more "Yes" votes than "No" votes. Please vote to accept as a new nominated member (check one of "Yes", "No", o...
...cast this absentee ballot for resolutions under consideration at the PSF member meeting to be held in Dallas at the Addison Marriott Quorum By The Galleria on February 24, 2006 from 5:10-19:00 pm. <!--START TEXT COMMON WITH BALLOT, current with agenda 8851--> <h3>Election of Sponsor Members</h3> <p>The following organizations have been nominated as sponsor members of the PSF. <ul> <table width="50%" border="1" cellspacing="0"> <...
...cast this absentee ballot for elections and resolutions under consideration at the PSF member meeting to be held at PyCon 2009 at the Hyatt Regency O'Hare hotel on March 27, 2009, from 12:10 pm. Election of Nominated Members The following people have been nominated for membership in the PSF. To be elected, a nominee must receive more "Yes" votes than "No" votes. Please vote to accept as a new nominated member (check one of "Yes", "No", or "Abstain&qu...
...cast The PSF will use Special online voting software. It is Based on the OSS eVote system. It was developed by Massimo di Pierro and maintained byDavid Mertz: https://github.com/mdipierro/evote. It is Already used by OSI at https://elections.opensource.org/ 5.3 New Concept: Workgroups Can be proposed by any member Voted in by voting members or PSF board Integration into the PSF defined by work group charta Can get their own budget Workgroups will help with Creating closer ...
...Casts using cast(T, obj), e.g.: zork = cast(Any, frobozz()) Other things, e.g. overloading and stub modules, see PEP 484. Predefined generic types and Protocols in typing.py (See also the typing.py module.) Everything from collections.abc (but Set renamed to AbstractSet). Dict, List, Set, FrozenSet, a few more. re.Pattern[AnyStr], re.Match[AnyStr]. io.IO[AnyStr], io.TextIO ~ io.IO[str], io.BinaryIO ~ io.IO[bytes]. Copyright This document is licensed under the Open Publication License....