[IIAB] install problems

[Braddock]

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On 08/16/2013 01:51 PM, Tony Anderson wrote:
> As a result, I have the latest of each package.
> 
> SQLalchemy is 0.82, Flask-SQLalchemy is 1.0.
> 
> Since both of these are Python packages, I can't see how this
> import error occurs.

Hi Tony,

Please try the following to see if the correct version of SQLalchemy
is actually being used by python:

python
Python 2.7.3 (default, Apr 10 2013, 06:20:15)
>>> import sqlalchemy sqlalchemy.__version__
'0.8.2'

I have seen the painful case where SQLAlchemy is installed both by rpm
and by the raw python package and the old rpm version is being used.

- -braddock


> 
> Ultimately, the way I got off the beaten path is not have being
> online. What I could do now is use yum with the CentOS repository
> to install pip and retry the install. However, as you mentioned,
> the state of the server is unknown due to all the installs and
> re-installs.
> 
> It looks like several of these packages are based on Django. Was
> there a particular reason you chose to go with Flask instead of
> Django?
> 
> When I get back home (end of September), I plan to purchase another
> box and use it to test the install process from scratch. It may be
> that I won't be able to get iiab working until then.
> 
> Thanks for your help and advice.
> 
> Yours,
> 
> Tony
> 
> 
> 
> On 08/16/2013 09:44 PM, Braddock wrote: Hi Tony,
> 
> On 08/16/2013 04:09 AM, Tony Anderson wrote:
>>>> This has led to installing a dozen Python packages from tar
>>>> and zip downloads using python setup.py install. (pip is not
>>>> installed but probably could be now that I have the
>>>> repository set up.).
> 
> I worry you are straying very far from the beaten path and making
> a lot of extra work for yourself.
> 
> pip as documented in our INSTALL.txt and my e-mail on usage under
> XS 0.7 should be doing all of this legwork for you, and ensure you
> are getting the proper versions.
> 
> Without gcc and your rpm dependency hell this is difficult.  I'd 
> really recommend figuring out how to fix that because your platform
> is really broken.
> 
> Even with broken gcc, I recommend you use pip to install all 
> pre-requisites except SQLAlchemy and lzma (which require gcc).  A
> list of pre-requisites is in the IIAB repo file requirements.txt:
> 
> Flask>=0.10 Flask-Babel>=0.8 Flask-SQLAlchemy>=0.16 
> Flask-AutoIndex Whoosh>=2.4.1 backports.lzma>=0.0.2
> 
>>>> The penultimate problem is that webapp.py, top-views.py, 
>>>> gutemberg.py, and zip-views.py import flaskext.babel.
>>>> Apparently Flask has changed to import flask_babel. I changed
>>>> this and all is ok.
> 
> This flask.babel import problem was fixed last week when you first 
> reported it.  pip install --upgrade Internet-in-a-Box should
> correct it, or get the latest code from github.
> 
>>>> [Fri Aug 16 21:39:57 2013] [error] [client 172.18.96.177]
>>>> from sqlalchemy import orm, event [Fri Aug 16 21:39:57 2013]
>>>> [error] [client 172.18.96.177] ImportError: cannot import
>>>> name event
> 
> This is probably because CentOS 6.2 has a very old version of 
> SQLAlchemy installed via RPM.  Again, pip will install a
> compatible version, but you won't be able to install it without
> gcc.
> 
> A longer term alternative to using pip that removes the gcc 
> requirement is for us to generate you CentoOS/XS0.7 specific RPMs. 
> This is what we are doing for XSCE, although there would be extra
> work required because CentOS 6.2 is so far out of date compared to
> Fedora 18.
> 
> I'd be interested in more information why your attempt to install
> IIAB on Ubuntu 12.04 failed.  That is our main development platform
> and is pretty well tested.
> 
> -bradodck
>> .
>> 

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