Hi Sean, I might be wrong, but this error is due to the fact that the casperfpga module that you are using (when you do "pip install" and/or the master branch of the github repo) is meant to work on python 2.x.
What I can suggest doing is the following: Uninstall casperfpga >> pip uninstall casperfpga Then in your git directory, do a >> git checkout py3-merge This will switch to the python3 version of the module, and then install it. Hope this will fix the problem! Cheers, Wael On Wed, 6 May 2020 at 10:23, Sean Mckee <semc8...@colorado.edu> wrote: > Greetings Casperites, > > I'm new to Linux, and I think I must have some simple setting adjusted > incorrectly. > > I'm running ubuntu 16.04 and tried this on a fresh install. > > I first simply tried "pip install casperfpga", but this gave me the error > message: > > ERROR: Could not find a version that satisfies the requirement casperfpga > (from versions: none) > ERROR: No matching distribution found for casperfpga > > I then cloned from https://github.com/casper-astro/casperfpga.git and > installed. The installation seemed to go fine, but when I open up an > ipython instance and type "import casperfpga" I get the following: > > ----> 1 import casperfpga > > /home/sean/Casper/casper_venv/lib/python3.5/site-packages/casperfpga-0.1.3-py3.5-linux-x86_64.egg/casperfpga/__init__.py > in <module>() > 4 > 5 # import all the main classes that we'll use often > ----> 6 from bitfield import Bitfield, Field > 7 from katadc import KatAdc > 8 from casperfpga import CasperFpga > > ImportError: No module named 'bitfield' > > I tried installing bitfield via "pip install bitfield", but this seems to > be a different version of bitfield than expected by casperfpga. I get this > error message: > > ----> 1 import casperfpga > > /home/sean/Casper/casper_venv/lib/python3.5/site-packages/casperfpga-0.1.3-py3.5-linux-x86_64.egg/casperfpga/__init__.py > in <module>() > 4 > 5 # import all the main classes that we'll use often > ----> 6 from bitfield import Bitfield, Field > 7 from katadc import KatAdc > 8 from casperfpga import CasperFpga > > ImportError: cannot import name 'Field' > > All of this was run from a python 3 virtual environment. Any insight into > this? > > Thanks, > Sean > > -- > You received this message because you are subscribed to the Google Groups " > casper@lists.berkeley.edu" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to casper+unsubscr...@lists.berkeley.edu. > To view this discussion on the web visit > https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/b00b1193-9742-480b-87df-f4e5a110b683%40lists.berkeley.edu > <https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/b00b1193-9742-480b-87df-f4e5a110b683%40lists.berkeley.edu?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "casper@lists.berkeley.edu" group. To unsubscribe from this group and stop receiving emails from it, send an email to casper+unsubscr...@lists.berkeley.edu. To view this discussion on the web visit https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CALO2pVeJM3N3khtta4dF1B7Unui7fGj9bP9Ooy_rR%3DOZzd-4wA%40mail.gmail.com.
