[Python-Dev] [RELEASED] Python 3.4.1rc1
On behalf of the Python development community and the Python 3.4 release team, I'm pleased to announce the availability of Python 3.4.1rc1. Python 3.4.1rc1 has over three hundred bugfixes and other improvements over 3.4.0. One notable change: the version of OpenSSL bundled with the Windows installer no longer has the "HeartBleed" vulnerability. You can download it here: https://www.python.org/download/releases/3.4.1 One note: the "topics" data file for the pydoc is broken in this release. This means the pydoc command and the built-in "help" will fail on some topics. //arry/ ___ Python-Dev mailing list [email protected] https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
[Python-Dev] Existence of pythonNN.zip in sys.path
Hi, I am the author of cx_Freeze which creates "frozen" executables from Python scripts. To this point I have been using frozen modules (compiled C) but this has the side effect of bundling parts of Python with a cx_Freeze release -- and this has bitten me on a number of occasions when newer versions of Python use slightly incompatible modules. :-) By scanning the code I discovered that Python automatically searches on startup /lib/pythonNN.zip where NN is replaced by the major and minor version that is being executed. Using this would allow me to ensure that bootstrap modules are not bundled with cx_Freeze but acquired from the distribution that is actually using it -- thereby eliminating the hassle noted above. I have tested this approach and found it works flawlessly. There is, however, no documentation that I can find for the contents of sys.path -- the documentation simply says that it is an installation default and doesn't specify what that default is. So my question is: can I safely make use of this "feature"? It has remained in place since at least Python 2.6 but I don't want to assume anything. Please advise! Thanks. Anthony ___ Python-Dev mailing list [email protected] https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
Re: [Python-Dev] Existence of pythonNN.zip in sys.path
On 5 May 2014 22:32, Anthony Tuininga wrote: > So my question is: can I safely make use of this "feature"? It has remained > in place since at least Python 2.6 but I don't want to assume anything. > Please advise! Thanks. I believe this is a 100% supported feature of Python (since 2.6, as you mention). Some of the zip import/run features have unfortunately been underdocumented, and I suspect that this is simply one of those. Paul ___ Python-Dev mailing list [email protected] https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
Re: [Python-Dev] Existence of pythonNN.zip in sys.path
On Mon, May 5, 2014 at 3:50 PM, Paul Moore wrote: > On 5 May 2014 22:32, Anthony Tuininga wrote: > > So my question is: can I safely make use of this "feature"? It has > remained > > in place since at least Python 2.6 but I don't want to assume anything. > > Please advise! Thanks. > > I believe this is a 100% supported feature of Python (since 2.6, as > you mention). Some of the zip import/run features have unfortunately > been underdocumented, and I suspect that this is simply one of those. > > Paul > That's great news. Thanks! Anthony ___ Python-Dev mailing list [email protected] https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
Re: [Python-Dev] Existence of pythonNN.zip in sys.path
On Mon, May 5, 2014 at 2:52 PM, Anthony Tuininga wrote: > On Mon, May 5, 2014 at 3:50 PM, Paul Moore wrote: > >> On 5 May 2014 22:32, Anthony Tuininga wrote: >> > So my question is: can I safely make use of this "feature"? It has >> remained >> > in place since at least Python 2.6 but I don't want to assume anything. >> > Please advise! Thanks. >> >> I believe this is a 100% supported feature of Python (since 2.6, as >> you mention). Some of the zip import/run features have unfortunately >> been underdocumented, and I suspect that this is simply one of those. >> >> Paul >> > > That's great news. Thanks! > > Anthony > There is at least one caveat to using a .zip file for the standard library: http://bugs.python.org/issue19081 Never change the .zip file in use by a running process. -gps ___ Python-Dev mailing list [email protected] https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
Re: [Python-Dev] Existence of pythonNN.zip in sys.path
On 6 May 2014 07:51, "Paul Moore" wrote: > > On 5 May 2014 22:32, Anthony Tuininga wrote: > > So my question is: can I safely make use of this "feature"? It has remained > > in place since at least Python 2.6 but I don't want to assume anything. > > Please advise! Thanks. > > I believe this is a 100% supported feature of Python (since 2.6, as > you mention). Some of the zip import/run features have unfortunately > been underdocumented, and I suspect that this is simply one of those. sys.path initialisation in general is woefully underspecified and thoroughly confusing :( Fixing that is actually one of the motivating forces behind the proposed startup improvements in PEP 432. Cheers, Nick. > > Paul > ___ > Python-Dev mailing list > [email protected] > https://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: https://mail.python.org/mailman/options/python-dev/ncoghlan%40gmail.com ___ Python-Dev mailing list [email protected] https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
Re: [Python-Dev] Existence of pythonNN.zip in sys.path
Thanks. I think I can live with that restriction. :-) I do not read/write to the same zip file in the same process. Anthony On Mon, May 5, 2014 at 4:10 PM, Gregory P. Smith wrote: > > On Mon, May 5, 2014 at 2:52 PM, Anthony Tuininga < > [email protected]> wrote: > >> On Mon, May 5, 2014 at 3:50 PM, Paul Moore wrote: >> >>> On 5 May 2014 22:32, Anthony Tuininga >>> wrote: >>> > So my question is: can I safely make use of this "feature"? It has >>> remained >>> > in place since at least Python 2.6 but I don't want to assume anything. >>> > Please advise! Thanks. >>> >>> I believe this is a 100% supported feature of Python (since 2.6, as >>> you mention). Some of the zip import/run features have unfortunately >>> been underdocumented, and I suspect that this is simply one of those. >>> >>> Paul >>> >> >> That's great news. Thanks! >> >> Anthony >> > > There is at least one caveat to using a .zip file for the standard > library: http://bugs.python.org/issue19081 > > Never change the .zip file in use by a running process. > > -gps > ___ Python-Dev mailing list [email protected] https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
Re: [Python-Dev] Existence of pythonNN.zip in sys.path
On Mon, May 5, 2014 at 4:16 PM, Nick Coghlan wrote: > > On 6 May 2014 07:51, "Paul Moore" wrote: > > > > On 5 May 2014 22:32, Anthony Tuininga > wrote: > > > So my question is: can I safely make use of this "feature"? It has > remained > > > in place since at least Python 2.6 but I don't want to assume anything. > > > Please advise! Thanks. > > > > I believe this is a 100% supported feature of Python (since 2.6, as > > you mention). Some of the zip import/run features have unfortunately > > been underdocumented, and I suspect that this is simply one of those. > > sys.path initialisation in general is woefully underspecified and > thoroughly confusing :( > > Fixing that is actually one of the motivating forces behind the proposed > startup improvements in PEP 432. > > Cheers, > Nick. > Thanks for the link. I would tend to agree with your assessment. :-) I've had to delve into the startup code a number of times to make cx_Freeze behave itself so any help here would be much appreciated! Anthony ___ Python-Dev mailing list [email protected] https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
