python-tornado dependency

[Tiago Freitas Pereira]

Hello,

It seems the python tornado is one of the dependencies of bob 1.2.0.

This dependency should be updated here:

http://www.idiap.ch/software/bob/docs/releases/last/sphinx/html/Dependencies.html

For MAC OS:

  sudo port install py27-tornado

 or

  sudo port install py26-tornado

For Ubuntu:

 sudo apt-get install python-tornado

Cheers

--
Tiago

[André Anjos]

Hello, I think Python Tornado is a new direct dependence for IPython, not Bob. Did you get problems running Bob after an upgrade? Could you detail it a bit more? Thanks, A 

[Tiago Freitas Pereira]

Hello, 

humm

I just updated bob using macports and when I tried to run a regular script that imports bob:

Traceback (most recent call last):

  File "tests.py", line 1, in <module>

    import bob

  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bob/__init__.py", line 15, in <module>

    version = __import__('pkg_resources').require('bob')[0].version

  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources.py", line 728, in require

    needed = self.resolve(parse_requirements(requirements))

  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources.py", line 626, in resolve

    raise DistributionNotFound(req)

pkg_resources.DistributionNotFound: tornado

Importing bob using IPython:

n [1]: import bob

---------------------------------------------------------------------------

DistributionNotFound                      Traceback (most recent call last)

<ipython-input-1-7326b7cfcb08> in <module>()

----> 1 import bob

/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bob/__init__.py in <module>()

     13 from . import trainer

     14 

---> 15 version = __import__('pkg_resources').require('bob')[0].version

     16 

     17 __all__ = [k for k in dir() if not k.startswith('_')]

/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources.pyc in require(self, *requirements)

    726         included, even if they were already activated in this working set.

    727         """

--> 728         needed = self.resolve(parse_requirements(requirements))

    729 

    730         for dist in needed:

/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources.pyc in resolve(self, requirements, env, installer)

    624                         # unfortunately, zc.buildout uses a str(err)

    625                         # to get the name of the distribution here..

--> 626                         raise DistributionNotFound(req)

    627                 to_activate.append(dist)

    628             if dist not in req:

DistributionNotFound: tornado

I just installed the python tornado on my laptop (mac os) and everything worked fine.

On Thu, Aug 15, 2013 at 4:03 AM, André Anjos <andre.d...@gmail.com> wrote:

Hello, I think Python Tornado is a new direct dependence for IPython, not Bob. Did you get problems running Bob after an upgrade? Could you detail it a bit more? Thanks, A 

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[Tiago Freitas Pereira]

I updated bob 1.2.0 on my ubuntu (VM) and everything worked fine. 

--
Tiago

[André Anjos]

Ok, I understand the problem:

Matplotlib depends on tornado, not Ipython. Bob depends on Matplotlib.

If you do:

$ python

...

>>> import pkg_resources

>>> pkg_resources.require('matplotlib')

You will see where the problem is really coming from. The bottom line is that they updated the package but forgot to update the dependence on MacPorts. I have filed a ticket:

https://trac.macports.org/ticket/40134

No need to modify anything on our side. Thanks for reporting though, A

Dr. André Anjos
Idiap Research Institute
Centre du Parc - rue Marconi 19
CH-1920 Martigny, Suisse
Phone: +41 27 721 7763
Fax: +41 27 721 7712
http://andreanjos.org

[Elie Khoury]

Hello,

I'm having the same trouble after upgrading bob (1.2.2)
Only installing py27-tornado solves the problem, as tiago suggested.

sudo port install py27-tornado

Cheers,
Elie

[André Anjos]

Hello, Elie could u find out why that happens? We don't depend on that package, so it must be an indirect dependence! Thanks a lot in advance, A

[Elie Khoury]

Hello,

Just for the record, the problem comes from matlplotlib. The packaging bug that  Andre reported (https://trac.macports.org/ticket/40134) is still not solved.

For the time being, we found a workaround:

sudo port install py27-matplotlib +webagg

The corresponding documentation is also updated (https://github.com/idiap/bob/wiki/Packages) accordingly.

Thanks,
Elie

-- 
-------------------
Dr. Elie Khoury
Post Doctorant
Biometric Person Recognition Group
IDIAP Research Institute (Switzerland)
Tel : +41 27 721 77 23

[André Anjos]

Thanks for confirming this. A