Pyomo Installation under Ubuntu 14.04 and Python 3.4

[Cord Kaldemeyer]

I want to use Pyomo with Python 3.4 under Ubuntu 14.04 x64 and have tried to install it using pip3 with the following command:

sudo pip3 install pyomo

But this leads to the following error:

cord@cord-Latitude-E7440:~$ sudo pip3 install --upgrade pyomo
Cleaning up...
Exception:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/pip/req.py", line 810, in check_if_exists
    self.satisfied_by = pkg_resources.get_distribution(self.req)
  File "/usr/local/lib/python3.4/dist-packages/setuptools-1.1.5-py3.4.egg/pkg_resources.py", line 350, in get_distribution
    if isinstance(dist,Requirement): dist = get_provider(dist)
  File "/usr/local/lib/python3.4/dist-packages/setuptools-1.1.5-py3.4.egg/pkg_resources.py", line 229, in get_provider
    return working_set.find(moduleOrReq) or require(str(moduleOrReq))[0]
  File "/usr/local/lib/python3.4/dist-packages/setuptools-1.1.5-py3.4.egg/pkg_resources.py", line 673, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/usr/local/lib/python3.4/dist-packages/setuptools-1.1.5-py3.4.egg/pkg_resources.py", line 580, in resolve
    raise VersionConflict(dist,req) # XXX put more info here
pkg_resources.VersionConflict: (PyUtilib 4.7.3340 (/usr/local/lib/python3.4/dist-packages), Requirement.parse('PyUtilib>=5.0'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/pip/basecommand.py", line 122, in main
    status = self.run(options, args)
  File "/usr/lib/python3/dist-packages/pip/commands/install.py", line 278, in run
    requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
  File "/usr/lib/python3/dist-packages/pip/req.py", line 1090, in prepare_files
    req_to_install.check_if_exists()
  File "/usr/lib/python3/dist-packages/pip/req.py", line 814, in check_if_exists
    existing_dist = pkg_resources.get_distribution(self.req.project_name)
  File "/usr/local/lib/python3.4/dist-packages/setuptools-1.1.5-py3.4.egg/pkg_resources.py", line 350, in get_distribution
    if isinstance(dist,Requirement): dist = get_provider(dist)
  File "/usr/local/lib/python3.4/dist-packages/setuptools-1.1.5-py3.4.egg/pkg_resources.py", line 229, in get_provider
    return working_set.find(moduleOrReq) or require(str(moduleOrReq))[0]
  File "/usr/local/lib/python3.4/dist-packages/setuptools-1.1.5-py3.4.egg/pkg_resources.py", line 673, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/usr/local/lib/python3.4/dist-packages/setuptools-1.1.5-py3.4.egg/pkg_resources.py", line 580, in resolve
    raise VersionConflict(dist,req) # XXX put more info here
pkg_resources.VersionConflict: (PyUtilib 4.7.3340 (/usr/local/lib/python3.4/dist-packages), Requirement.parse('PyUtilib>=5.0'))

Storing debug log for failure in /home/cord/.pip/pip.log

Can anyone help me with this?

Cheers
Cord

[William Hart]

I'm not familiar with pip3.  It looks like pip is having trouble reconciling different PyUtilib versions.  I'd try uninstalling PyUtilib 4.7 and then re-installing Pyomo.

--Bill

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[Cord Kaldemeyer]

Hi Bill,

thanks for your quick reply! I have followed your suggestion and successfully installed Pyomo:

cord@cord-Latitude-E7440:~$ sudo pip3 install pyomo
Downloading/unpacking pyomo
  Downloading Pyomo-4.0.9682-py3-none-any.whl (1.1MB): 1.1MB downloaded
Requirement already satisfied (use --upgrade to upgrade): six>=1.6.1 in /usr/local/lib/python3.4/dist-packages (from pyomo)
Requirement already satisfied (use --upgrade to upgrade): ply in /usr/local/lib/python3.4/dist-packages (from pyomo)
Requirement already satisfied (use --upgrade to upgrade): PyUtilib>=5.0 in /usr/local/lib/python3.4/dist-packages/PyUtilib-5.0.3478-py3.4.egg (from pyomo)
Requirement already satisfied (use --upgrade to upgrade): nose in ./.local/lib/python3.4/site-packages (from pyomo)
Installing collected packages: pyomo
Successfully installed pyomo
Cleaning up...

cord@cord-Latitude-E7440:~$ sudo pip3 install --upgrade pyomo

Requirement already up-to-date: pyomo in /usr/local/lib/python3.4/dist-packages
Cleaning up...
cord@cord-Latitude-E7440:~$

But if I now run a model (that worked under Python 2.7 with Pyomo 4.0) I get the following error which a a first glance is not related to my model.

>>> runfile('/home/cord/Programmierung/DLSK/Vereinfachtes_Kraftwerksmodell/mdl_power_plant_spot_tr_basic_plot_farbe.py', wdir='/home/cord/Programmierung/DLSK/Vereinfachtes_Kraftwerksmodell')

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.4/dist-packages/spyderlib/widgets/externalshell/sitecustomize.py", line 682, in runfile
    execfile(filename, namespace)
  File "/usr/local/lib/python3.4/dist-packages/spyderlib/widgets/externalshell/sitecustomize.py", line 85, in execfile
    exec(compile(open(filename, 'rb').read(), filename, 'exec'), namespace)
  File "/home/cord/Programmierung/DLSK/Vereinfachtes_Kraftwerksmodell/mdl_power_plant_spot_tr_basic_plot_farbe.py", line 20, in <module>
    from pyomo.environ import *
  File "/usr/local/lib/python3.4/dist-packages/pyomo/environ/__init__.py", line 13, in <module>
    import pyomo.core
  File "/usr/local/lib/python3.4/dist-packages/pyomo/core/__init__.py", line 11, in <module>
    PluginGlobals.add_env("pyomo")
AttributeError: type object 'PluginGlobals' has no attribute 'add_env'
>>>

 Any hints?

Cheers
Cord

[Cord Kaldemeyer]

The error seems to be the same as this one: http://stackoverflow.com/questions/29979917/installation-issue-with-pyomo-and-coopr-in-linux-ubuntu

...

[Siirola, John D]

PyUtilib 4.7 was the last of the “distributed” versions of pyutilib – where the components (pyutilib.dev, pyutilib.workflow, etc) were installed as separate Python modules.  By uninstalling PyUtilib 4.7, you only uninstalled the umbrella module that set the dependencies on all the sub-modules.  The submodules from 4.7 are still installed, and they are now fighting with PyUtilib 5.x.

 

The solution is to uninstall *all*pyutilib.* modules (and all coopr.* modules) and then to reinstall Pyomo 4.x and PyUtilib 5.x (pulled automatically by dependency resolution when installing Pyomo).  If you don’t want to do that uninstall manually, we provide a pyomo_uninstall.py script (https://software.sandia.gov/trac/pyomo/downloader/download/file/79) that will uninstall Pyomo 4.x, Coopr 3.x, PyUtilib 4.x and Pyutilib 5.x, and all the component modules.

 

john

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[Cord Kaldemeyer]

You were right. Now everythin seems to work fine (except for some model adaptions). Thanks!

Cord

...

[Cord Kaldemeyer]

Sorry, I was a bit too hasty with my answer.

If I now run a model I get an error "Error loading 'pyutilib.component' entry points: 'pyutilib.misc'".

Any ideas?

Cheers
Cord

[Cord Kaldemeyer]

I could now fix the error on my own. Apparently, some old pip3-installed coopr packages were installed beside the newest pyomo-version. Since a regular "pip3 uninstall" did not work properly, I have removed them as described in the following link (http://askubuntu.com/questions/173323/how-do-i-detect-and-remove-python-packages-installed-via-pip) and then reinstalled Pyomo via pip3. Now everything works fine and also without "pyutilib" as "pip3 freeze" does not list this package anymore.

Thanks anyway!

[respect sosa]

I am trying to install Pyomo but i am getting the following errors. Can somebody help


''Downloading/unpacking pip
  Cannot fetch index base URL https://pypi.python.org/simple/
  Could not find any downloads that satisfy the requirement pip
Cleaning up...
No distributions at all found for pip
Storing debug log for failure in /home/sosa/.pip/pip.log
ERROR: Problem installing pip.  No pip executable found after installing pip in /tmp/tmpUSiCCk
sosa@sosa-Aspire-E5-571:~/Downloads$ sudo apt-get install python3-pip
Reading package lists... Done
Building dependency tree      
Reading state information... Done
python3-pip is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 21 not upgraded.
sosa@sosa-Aspire-E5-571:~/Downloads$ sudo pip3 install pyomo
Downloading/unpacking pyomo
  Cannot fetch index base URL https://pypi.python.org/simple/
  Could not find any downloads that satisfy the requirement pyomo
Cleaning up...
No distributions at all found for pyomo
Storing debug log for failure in /home/sosa/.pip/pip.log
sosa@sosa-Aspire-E5-571:~/Downloads$ ""

[Siirola, John D]

It looks like you have a network connectivity issue.  Are you sitting behind a proxy server?   Worst case, you can grab the ZIP files that we publish and use pyomo_install to perform an offline installation.  See the Installation Guide for more detail on this.

 

john

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