Unable to install cobrapy on Anaconda

[kianoosh kargar]

Today, all the day, I was trying to install using INSTALL.rst file and surfing on the net but I could not !!

I tried installing using Jupyternotebook, Anaconda power shell and  Anaconda prompt. but all of them give this error :

PackagesNotFoundError: The following packages are not available from current channels:

  - cobra
  - optlang[version='>=1.2.5']
  - cobra
  - ruamel.yaml[version='<0.15']
  - cobra
  - swiglpk
  - cobra
  - depinfo[version='>=1.5.1']
  - cobra
  - python-libsbml[version='>=5.18.0']
  - cobra
  - diskcache[version='>=5.0']

I even tried this command: conda install -c bioconda -c conda-forge cobra

but it gives:

CondaValueError: Malformed version string '~': invalid character(s).

can anyone give me a step by step solution for installing and using COBRApy in Jupyter notebook?

thanks a lot.

[ch.d...@gmail.com]

That error seems to be the result of an outdated Anaconda. Can you update you Anaconda and conda to a recent version and check if the error persists?

See https://stackoverflow.com/questions/56084960/condavalueerror-malformed-version-string-invalid-characters for some more info.