[PyQt] Inter-office distribution/installation of packages/modules

Erik Janssens Erik.Janssens at conceptive.be
Tue Jun 28 19:41:28 BST 2011

that's interesting, how do you handle the auto update with py2exe ?
which part of the app gets updated ?

On Fri, Jun 17, 2011 at 12:58 AM, Demetrius Cassidy
<dcassidy36 at gmail.com> wrote:
> We have an app which must be redistributed to multiple groups, with 40+
> users and py2exe is the reason we are able to do this. Gui2exe makes the
> building simpler.
> If you need to debug, you won't be running the bundled app, so I don't see
> why you would need to so much other than making sure it runs when bundled.
> If your packages are making assumptions on how your enviroment is set up,
> IMO I think that is wrong and will only lead to problems down the road.
> And the last thing, is that we have an auto updater, so new releases only
> require a rebuild and push to the sever.
> On Jun 16, 2011 2:58 PM, "Erik Janssens" <Erik.Janssens at conceptive.be>
> wrote:
>> Hi,
>> I would not agree with using Py2exe, while the idea is nice, we have had
>> many
>> issues with it, basically for 2 reasons :
>> - it's dependency analysis, in combination with automatic updates : if
>> your
>> update
>> uses a part of a package that was not used in the original package, you
>> need to
>> redeploy everything, instead of just the part of your app that you update
>> - it changes the 'environment' your app runs in (eg sys.path), while it is
>> possible
>> to work around it in your app, you need to make sure that none of the
>> packages
>> you use make certain assumption on the environment
>> This combination means that in order to properly test your application,
>> you
>> need
>> to continuously rebuild your app with py2exe, and run it. notice some
>> error,
>> fix it,
>> rebuild, etc. This takes far too much time.
>> So what we did was :
>> - build a custom python distro with all 'binary' packages included we need
>> that
>> does not depend on registry settings and does not conflict with
>> potentially other
>> pythons installed on the machine, so we can develop, test and deploy in
>> exactly the same environment
>> http://www.python-camelot.com/cpd.html
>> - build an auto-update & monitoring service around it that was integrated
>> with
>> setuptools and buildbot
>> http://www.conceptive.be/downloads/camelot/doc/sphinx/build/advanced/deployment.html
>> we serve more than 100 sites with this combination. updating the app is
>> just
>> pressing the buildbot button which will run unittests, build a package and
>> push
>> it to the end users.
>> Regards,
>> Erik
>> On Thu, Jun 16, 2011 at 7:13 PM, James Polk <jpolk5001 at yahoo.com> wrote:
>>> Apologies if this is too off-topic,....but I'd like to propose a
>>> discussion
>>> of
>>> how-to's and where-fore's regarding distributing python modules to a
>>> user-base.
>>> Recently, I've been using Mark Hammond's excellent pywin32 packages,
>>> along with NumPy and PyOpenGL,etc. I have a user-base of approx 40 or so,
>>> who will need these packages added to their base Python install.
>>> Rather than visit 40 separate desktops, I used "pip" (pip freeze) to get
>>> a
>>> short list of packages outside the base install, and wrote an app that
>>> each
>>> user can run to find what's missing, and initiate the appropriate
>>> install,etc.
>>> Then I realized that "pip" itself was a 3rd party package!..DOh!
>>> I can fall back and use "help('modules')" to generate a new list, but it
>>> lists
>>> *everything* in the install,...usable but not as succinct, for pywin32
>>> for
>>> example,
>>> it lists about a dozen things with a form of "win32" in them,...and
>>> doesn't
>>> appear
>>> to return the real package name that is associated with the binary
>>> installation file.
>>> Surely these issues are fairly common phenomena in many workplaces,etc...
>>> I'm wondering if anybody out there has any knowledge, tips, or
>>> experiences
>>> regarding this issue that they can share.
>>> I've found "moduleFinder", and various ideas about searching "sys.path",
>>> pkgutils, but nothing else that seems like a long term viable and/or
>>> elegant solution.
>>> Thoughts anyone?
>>> Thanks,
>>> -Jim
>>> _______________________________________________
>>> PyQt mailing list PyQt at riverbankcomputing.com
>>> http://www.riverbankcomputing.com/mailman/listinfo/pyqt

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