Compatibility with python 3.9

[ucbecla]

Hello,

I have just tried installing fretbursts with the recommended "conda install -c conda-forge fretbursts" line and received an error message about a conflict due to my version of python (3.9). On the documentation it says python 3.6+ is needed; but is there a limit to the version of python supported ? Is there a workaround otherwise ?

Many thanks,
Christophe

[jacrossley]

Hey Christophe,

Compatibility issues with 3.6/3.7+ is a known problem. From what I remember there was some issues with unit testing that prevented the package from being updated to support newer python versions. I have wanted to get round to fixing this for a while but haven't found the time.
My suggestion would be to use a dedicated conda environment for your FRETBursts installation which uses an older version of python, in general, this is good practice anyway (see: [https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html])
So, to create an environment and install FRETBursts you'd want to do something along the lines of:

conda create -n py36FRETBursts python=3.6
conda activate py36FRETBursts
conda install fretbursts -c conda-forge

Hope this helps! Let us know any issues.

Joel

[harripd]

Hi Christophe,

Sorry if I'm chiming in much later. I'm taking over the maintenance of FRETbursts.
What I can tell you is this: the latest github version of FRETBursts is fully compatible with python 3.9, unfortunately I haven't been able to get it up onto conda-forge, the update process is broken somehow.
So if you install with pip instead

pip install fretbursts

You should be able to run it on python 3.9

Best,
Paul