Re: [Pythonmac-SIG] Installing modules with py2app

2011-01-18 Thread Chris Weisiger
Did you build the app bundle with the Python that came with OSX, or did you
install a separate Python install from python.org and use that? You have to
do the latter; py2app's not allowed to include components of the operating
system in the apps it generates. Windows gets around this problem by not
having a standard Python install.

HTH

-Chris

On Tue, Jan 11, 2011 at 9:42 AM, Mier, Alejandro alejan...@ti.com wrote:

 Hello

 I have a script that installs Python, and then installs some modules with:

 subprocess.call(python setup.py install)

 The script works on Windows with py2exe, but gives me this error when using
 py2app:

 File setup.py
from distutils.core import setup
 ImportError: No module named distutils.core

 I tried explicitly including distutils when building the .app bundle, with
 python setup.py py2app --packages distutils (and several variations of
 --includes), but then I get this error:

 error: invalid command 'install'

 What do I need to do to make this work on mac?

 Thanks!
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Re: [Pythonmac-SIG] Installing modules with py2app

2011-01-18 Thread Mier, Alejandro
Hi

I am using a separate Python install (ActivePython 2.6 ), so that's not it

Thanks

--
Alejandro Mier y Concha

From: pythonmac-sig-bounces+alejandro=ti@python.org 
[mailto:pythonmac-sig-bounces+alejandro=ti@python.org] On Behalf Of Chris 
Weisiger
Sent: Tuesday, January 18, 2011 10:08 AM
Cc: pythonmac-sig@python.org
Subject: Re: [Pythonmac-SIG] Installing modules with py2app

Did you build the app bundle with the Python that came with OSX, or did you 
install a separate Python install from python.orghttp://python.org and use 
that? You have to do the latter; py2app's not allowed to include components of 
the operating system in the apps it generates. Windows gets around this problem 
by not having a standard Python install.

HTH

-Chris
On Tue, Jan 11, 2011 at 9:42 AM, Mier, Alejandro 
alejan...@ti.commailto:alejan...@ti.com wrote:
Hello

I have a script that installs Python, and then installs some modules with:

subprocess.call(python setup.py install)

The script works on Windows with py2exe, but gives me this error when using 
py2app:

File setup.py
   from distutils.core import setup
ImportError: No module named distutils.core

I tried explicitly including distutils when building the .app bundle, with 
python setup.py py2app --packages distutils (and several variations of 
--includes), but then I get this error:

error: invalid command 'install'

What do I need to do to make this work on mac?

Thanks!
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Re: [Pythonmac-SIG] Installing modules with py2app

2011-01-18 Thread João Vale
Do you have distutils installed? It usually doesn't come bundled with
Python. It can be installed with easy_install:

easy_install distutils


Cheers,
João



On Tue, Jan 18, 2011 at 4:27 PM, Mier, Alejandro alejan...@ti.com wrote:
 Hi



 I am using a separate Python install (ActivePython 2.6 ), so that’s not it



 Thanks



 --

 Alejandro Mier y Concha



 From: pythonmac-sig-bounces+alejandro=ti@python.org
 [mailto:pythonmac-sig-bounces+alejandro=ti@python.org] On Behalf Of
 Chris Weisiger
 Sent: Tuesday, January 18, 2011 10:08 AM
 Cc: pythonmac-sig@python.org
 Subject: Re: [Pythonmac-SIG] Installing modules with py2app



 Did you build the app bundle with the Python that came with OSX, or did you
 install a separate Python install from python.org and use that? You have to
 do the latter; py2app's not allowed to include components of the operating
 system in the apps it generates. Windows gets around this problem by not
 having a standard Python install.

 HTH

 -Chris

 On Tue, Jan 11, 2011 at 9:42 AM, Mier, Alejandro alejan...@ti.com wrote:

 Hello

 I have a script that installs Python, and then installs some modules with:

 subprocess.call(python setup.py install)

 The script works on Windows with py2exe, but gives me this error when using
 py2app:

 File setup.py
    from distutils.core import setup
 ImportError: No module named distutils.core

 I tried explicitly including distutils when building the .app bundle, with
 python setup.py py2app --packages distutils (and several variations of
 --includes), but then I get this error:

 error: invalid command 'install'

 What do I need to do to make this work on mac?

 Thanks!
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 unsubscribe: http://mail.python.org/mailman/options/Pythonmac-SIG



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Re: [Pythonmac-SIG] Installing modules with py2app

2011-01-18 Thread Sridhar Ratnakumar
On Tue, Jan 11, 2011 at 9:42 AM, Mier, Alejandro alejan...@ti.com wrote:
 Hello

 I have a script that installs Python, and then installs some modules with:

 subprocess.call(python setup.py install)

 The script works on Windows with py2exe, but gives me this error when using 
 py2app:

 File setup.py
    from distutils.core import setup
 ImportError: No module named distutils.core

Try debugging this issue by printing sys.path, and check if
distutils/core... exists in one of them:

subprocess.call('python -c import sys; print((sys.prefix, sys.path))')

-srid
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Re: [Pythonmac-SIG] Installing modules with py2app

2011-01-18 Thread Mier, Alejandro
Hi Sridhar

Your suggestion to debug this problem started me in the right path. I found a 
workaround for the issue.

First, I explicitly included distutils in my py2app bundle. With that, the 
error I get is:

usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
or: setup.py --help [cmd1 cmd2 ...]
or: setup.py --help-commands
or: setup.py cmd --help
error: invalid command 'install'

I modified the included distutils files, and managed to get this stack trace

Traceback (most recent call last):
  File distutils/dist.py, line 837, in get_command_class
__import__ (module_name)
  File distutils/command/install.py, line 21, in module
from site import USER_BASE
cannot import name USER_BASE

The site.py included in the bundle has this comment: This is stripped down and 
customized for use in py2app applications

So apparently, py2app is removing USER_BASE and USER_SITE from site.py. I am 
not sure why it does that, but it is preventing the installation of modules 
with py2app.

I worked around it by modifying the included site.py to declare USER_BASE and 
USER_SITE after generating the .app bundle.

I think this might be a bug in py2app, but would like to know your input on 
this.

Regards,

--
Alejandro Mier y Concha


-Original Message-
From: Sridhar Ratnakumar [mailto:sridhar.ra...@gmail.com] 
Sent: Tuesday, January 18, 2011 11:43 AM
To: Mier, Alejandro
Cc: pythonmac-sig@python.org
Subject: Re: [Pythonmac-SIG] Installing modules with py2app

On Tue, Jan 11, 2011 at 9:42 AM, Mier, Alejandro alejan...@ti.com wrote:
 Hello

 I have a script that installs Python, and then installs some modules with:

 subprocess.call(python setup.py install)

 The script works on Windows with py2exe, but gives me this error when using 
 py2app:

 File setup.py
    from distutils.core import setup
 ImportError: No module named distutils.core

Try debugging this issue by printing sys.path, and check if
distutils/core... exists in one of them:

subprocess.call('python -c import sys; print((sys.prefix, sys.path))')

-srid
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Re: [Pythonmac-SIG] Installing modules with py2app

2011-01-18 Thread Christopher Barker

On 1/18/11 9:05 AM, João Vale wrote:

Do you have distutils installed? It usually doesn't come bundled with
Python.


huh? Sure it does -- distutils has been standard in Python for many many 
years.


So that's not it.

Besides, if you can run it unbundled, you have the packages you need, 
the question is how to get them properly into the py2app bundle.


-Chris


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Re: [Pythonmac-SIG] Python development on OSX

2011-01-18 Thread Christopher Barker

On 1/17/11 9:17 AM, Bill Janssen wrote:

And- I want to update the default python that came om my macbook pro to 2.7.
Should I do install that from Python.org?


My advice?  I've never had good luck trying to update the default
Python that comes with the Mac.


Bill -- I'm really curious what issues you've had -- I haven't tried to 
use Apple's Python is many years (OS-X 10.2, I think) -- and it used to 
be painful to do so. Since then I've stuck with the Python.org versions, 
and had no problems (at least none that would have been solved by using 
Apple's Python).


Here's my decision tree:

1) Do I do a bunch of unix-y command line stuff in general, and not want 
to develop OS-X GUIs?


if yes -- use Macports

if no:

Do I need/want a newer version than Apple provides?

if yes: python.org build

Do I need/want to use py2app to distribute my app(s)?

if yes: use the Python.org build

Do I want to use pre-build binaries of common hard-to-build packages?

if yes: use the python.org build.


You can see that most roads lead to the python.org builds.


That being said, to be clear:

You don't upgrade Apple's python. Rather, you install a new one 
alongside it, and use that for your work.



It is safe to build (and run) a non-Framework build of other versions of
Python in various places on your Mac, but life gets complicated if you
attempt to install it.


Again, I've never had a complication from an installed python.org build. 
You sure would if you put it in the same place as Apple's but the 
installers don't do that.


-Chris





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Oceanographer

Emergency Response Division
NOAA/NOS/ORR(206) 526-6959   voice
7600 Sand Point Way NE   (206) 526-6329   fax
Seattle, WA  98115   (206) 526-6317   main reception

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Re: [Pythonmac-SIG] Python development on OSX

2011-01-18 Thread Bill Janssen
Christopher Barker chris.bar...@noaa.gov wrote:

 On 1/17/11 9:17 AM, Bill Janssen wrote:
  And- I want to update the default python that came om my macbook pro to 
  2.7.
  Should I do install that from Python.org?
 
  My advice?  I've never had good luck trying to update the default
  Python that comes with the Mac.
 
 Bill -- I'm really curious what issues you've had -- I haven't tried
 to use Apple's Python is many years (OS-X 10.2, I think) -- and it
 used to be painful to do so. Since then I've stuck with the Python.org
 versions, and had no problems (at least none that would have been
 solved by using Apple's Python).

In general, there are issues around site-packages, paths, and other such
things.  I don't think you and I necessarily have much trouble with it,
but I tend to help others with Python on Macs, and they seem to get into
all kinds of trouble.  The best one I've found is one group who had
decided to upgrade their Leopard Python to 2.6.  They'd installed the
python.org Python, removed the symlink /usr/bin/python, and re-linked
/usr/bin/python to the 2.6 version.  They were happy, but plagued by odd
problems with their machines that didn't (to them) seem to be
Python-related.

Another problem I've run into more than once was that the user had
installed different incompatible versions of an extension, and couldn't
see why an application (with an embedded Python interpreter) was
misbehaving -- it was getting the wrong version of the extension.

Not sure this is much use to anyone, but here's my decision tree, which
has worked well for me over the past 7 years:

 1) Do I do a bunch of unix-y command line stuff in general, and not
 want to develop OS-X GUIs?

if yes -- use system Python.

if no:
 
 Do I need/want a newer version than Apple provides?

if yes: build non-framework version from source.

 Do I need/want to use py2app to distribute my app(s)?

Never happens.

Do I want to use pre-build binaries of common hard-to-build packages?

if yes: cry about the general unfairness of the world, then build them
from source instead to work with the system Python.

Bill
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Re: [Pythonmac-SIG] Installing modules with py2app

2011-01-18 Thread Christopher Barker

On 1/18/11 2:47 PM, Mier, Alejandro wrote:

I modified the included distutils files, and managed to get this stack trace

Traceback (most recent call last):
   File distutils/dist.py, line 837, in get_command_class
 __import__ (module_name)
   File distutils/command/install.py, line 21, inmodule
 from site import USER_BASE
cannot import name USER_BASE

The site.py included in the bundle has this comment: This is stripped down and 
customized for use in py2app applications

So apparently, py2app is removing USER_BASE and USER_SITE from site.py. I am 
not sure why it does that, but it is preventing the installation of modules 
with py2app.

I worked around it by modifying the included site.py to declare USER_BASE and 
USER_SITE after generating the .app bundle.

I think this might be a bug in py2app, but would like to know your input on 
this.


I don't think it's a bug -- you may have some problems with this. I'm 
not sure I quite get what distutils is doing with USER_BASE and 
USER_SITE, but I suspect that they are using them to figure out where to 
install stuff. That should be a function of the python you are 
installing to. A py2app bundle isn't usually installing stuff into itself.


How are you using distutils in this case? Are you installing stuff into 
the app bundle? Or into a system python? If a system python, you should 
probably use the system python's distutils (and thus its site.py) to do 
the work.


If you are installing into the app bundle (cool idea!), then you'll need 
to make sure that USER_BASE and USER_SITE are set correctly at run time 
for where the user happens to have put the py2app bundle.


-Chris







--
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Oceanographer

Emergency Response Division
NOAA/NOS/ORR(206) 526-6959   voice
7600 Sand Point Way NE   (206) 526-6329   fax
Seattle, WA  98115   (206) 526-6317   main reception

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