| msg154949 - (view) |
Author: Erik Johansson (erijo) |
Date: 2012-03-05 14:23 |
| I would expect that the following code would give True as result: >>> from ctypes import * >>> libc = CDLL("libc.so.6") >>> libc.time == libc['time'] False Is it by design that libc['time'] always returns a different _FuncPtr object? It is a bit confusing when doing things like: libc['time'].restype = ... libc['time'].argtypes = [...] # python --version Python 2.7.2+ Ubunutu version 2.7.2-5ubuntu1. |
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| msg154957 - (view) |
Author: Martin v. Löwis (loewis) *  |
Date: 2012-03-05 16:13 |
| This is intentional; the caching was removed in 214b28d7a999. Thomas, can you remember the rationale for this change? |
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| msg155089 - (view) |
Author: Thomas Heller (theller) * |
Date: 2012-03-07 14:02 |
| The rationale was to allow different packages (for example) in the same process to have their own private instance of a foreign function, with possibly different definitions of restype, argtypes and/or errcheck. |
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| msg155091 - (view) |
Author: Erik Johansson (erijo) |
Date: 2012-03-07 14:56 |
| Perhaps this behaviour should be documented somewhere (unless it already is)? |
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| msg155092 - (view) |
Author: Éric Araujo (eric.araujo) * |
Date: 2012-03-07 15:08 |
| Item access is documented in this section: http://docs.python.org/library/ctypes#loading-shared-libraries (scroll a bit down looking for __getitem__); the wording about caching is ambiguous with respect to the current behavior. |
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| msg155094 - (view) |
Author: Erik Johansson (erijo) |
Date: 2012-03-07 15:34 |
| Ah, I see. I modified the title to reflect this. Perhaps adding this simple example as well can help people (e.g. me) see it? >>> libc.time == libc.time True >>> libc['time'] == libc['time'] False |
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| msg165646 - (view) |
Author: Erik Johansson (erijo) |
Date: 2012-07-16 19:13 |
| Document the difference between __getattr__ and __getitem__. |
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| msg165898 - (view) |
Author: Meador Inge (meador.inge) * |
Date: 2012-07-20 03:42 |
| The general wording and example look good; thanks. I reworded things a little. Updated patch attached. |
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| msg166455 - (view) |
Author: Meador Inge (meador.inge) * |
Date: 2012-07-26 04:02 |
| Any comments on this one? I plan on committing the changes tomorrow unless I hear something otherwise. |
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| msg171302 - (view) |
Author: Erik Johansson (erijo) |
Date: 2012-09-25 18:03 |
| The -v2.patch patch looks good to me at least. |
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| msg228505 - (view) |
Author: Roundup Robot (python-dev)  |
Date: 2014-10-04 22:26 |
| New changeset ae64614b66b7 by R David Murray in branch '2.7': #14201: Update ctypes docs to match behavior changed from 214b28d7a999. https://hg.python.org/cpython/rev/ae64614b66b7 New changeset 5518aa0fbc06 by R David Murray in branch '3.4': #14201: Update ctypes docs to match behavior changed from 214b28d7a999. https://hg.python.org/cpython/rev/5518aa0fbc06 New changeset dfdcc3fad3aa by R David Murray in branch 'default': Merge: #14201: Update ctypes docs to match behavior changed from 214b28d7a999. https://hg.python.org/cpython/rev/dfdcc3fad3aa |
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| msg228507 - (view) |
Author: R. David Murray (r.david.murray) * |
Date: 2014-10-04 22:27 |
| Committed. See also issue 22552. |
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