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zblz / naima

Derivation of non-thermal particle distributions through MCMC spectral fitting
http://naima.readthedocs.io
BSD 3-Clause "New" or "Revised" License
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Naima for python 3.6 #141

Closed rlopezcoto closed 7 years ago

rlopezcoto commented 7 years ago

@cdeil asked what was the problem with installing naima with python 3.6. This is the message I get when trying to install it with anaconda:

(py36) Rubens-MacBook-Pro:~ rlopezcoto$ conda install naima Fetching package metadata ............. Solving package specifications: .

UnsatisfiableError: The following specifications were found to be in conflict:

cdeil commented 7 years ago

I think the problem is just that there's no conda package for Naima for Python 3.6 yet: https://anaconda.org/astropy/naima/files

@rlopezcoto - You should be able to use Naima with Python 3.6 if you pip install naima (which will install the latest stable version from source from PyPI: https://pypi.python.org/pypi/naima/0.8 For me this works fine with Python 3.6

@zblz - Does it make sense to do a new release for naima, to get new conda packages including for Python 3.6?

rlopezcoto commented 7 years ago

Thanks @cdeil, it was installed as you suggested without any problems

zblz commented 7 years ago

@rlopezcoto, @cdeil - thanks for spotting this. I looked into it and there are naima packages for Python 3.6, but the emcee dependency (which is also built in the astropy channel) does not have a 3.6 version yet, so it blocks the naima installation.

According to @bsipocz and @mwcraig in https://github.com/astropy/conda-channel-astropy/pull/132, the reason is that there is already a package on conda-forge and the current build pipeline for the astropy channel has some difficulties with it.

zblz commented 7 years ago

While the fix is in progress in https://github.com/astropy/conda-channel-astropy/pull/146, naima can be installed through conda for python 3.6 by including the conda-forge channel in addition to the astropy channel:

conda install -c astropy -c conda-forge naima
bsipocz commented 7 years ago

The build dates seems a bit weird on the conda channel, but now everything seems to be there, including emcee and corner. So

conda install -c astropy naima

should work now. It it doesn't, please open an issue in http://github.com/astropy/conda-channel-astropy

zblz commented 7 years ago

Thanks @bsipocz!