pandana 2.0.0 gcc error during install on linux machine about pandana

[fzenoni]

Hi all,

Was this ever solved?
I am on Ubuntu 16.04.4 LTS, gcc version 5.4.0. I managed to install pandana by doing pip2.7 install -U pandana (using pip gave an error as it was using by default python3). But then I am unable to do import pandana in a python session.
Here's the log:
Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/home/fzenoni/.local/lib/python2.7/site-packages/pandana/__init__.py", line 1, in <module> from network import Network File "/home/fzenoni/.local/lib/python2.7/site-packages/pandana/network.py", line 10, in <module> from . import _pyaccess ImportError: /home/fzenoni/.local/lib/python2.7/site-packages/pandana/_pyaccess.so: undefined symbol: GOMP_parallel

[Eh2406]

@pksohn I know you have been doing a lot of work on our releases infrastructure. Is this still broken?

[pksohn]

This should be fixed now that latest is out on Conda. @sablanchard?

[sablanchard]

@pksohn I no longer have access to the machine that had that particular environment, the latest Pandana installs fine on linux on other machines so I am unable to test the particulars of this issue again unless I try to duplicate the environment which still may not replicate it fully. I am more curious about @fzenoni issue here, do you still experience this error on the latest release?

I'm having a similar issue here:

ubuntu 16.04 LTS
installed pandana with: pip install -U pandana

when I try to import pandana I get the following error:

Traceback (most recent call last):
  File "simple_example.py", line 23, in <module>
    import pandana.network as pdna
  File "build/bdist.linux-x86_64/egg/pandana/__init__.py", line 1, in <module>
  File "build/bdist.linux-x86_64/egg/pandana/network.py", line 10, in <module>
  File "build/bdist.linux-x86_64/egg/pandana/_pyaccess.py", line 7, in <module>
  File "build/bdist.linux-x86_64/egg/pandana/_pyaccess.py", line 6, in __bootstrap__
ImportError: /home/jccb/.cache/Python-Eggs/pandana-0.3.0-py2.7-linux-x86_64.egg-tmp/pandana/_pyaccess.so: undefined symbol: GOMP_parallel

Also installed conda gcc:

$ conda install -y gcc
Fetching package metadata ...........
Solving package specifications: .

Package plan for installation in environment /media/shared/anaconda2/anaconda2:

The following NEW packages will be INSTALLED:

    cloog: 0.18.0-0     
    gcc:   4.8.5-7      
    gmp:   6.1.0-0      
    isl:   0.12.2-0     
    mpc:   1.0.3-0      
    mpfr:  3.1.5-0      

The following packages will be UPDATED:

    conda: 4.3.16-py27_0 --> 4.3.21-py27_0

Solved it by completely removing anaconda and reinstalling everything from scratch. I think the problem was that I din't use the conda-forge channel

[fzenoni]

Sorry about the delay. I reinstalled Pandana using the simple command pip2.7 install -U pandana. I did not manually reinstall anything else (some other package was automatically included in the installation process) . Eventually, the import pandana didn't give any error!
This is as far as I went, so I have no idea if bugs are still living elsewhere, but this is a major improvement.

Thank you very much.

[sablanchard]

Closing this issue for now. Latest version is 0.4.1 and no issues like this have been reported on linux yet.