Import Error - Bio.Alphabet has been removed from Biopython

[a-r-j]

ImportError: Bio.Alphabet has been removed from Biopython. In many cases, the alphabet can simply be ignored and removed from scripts. In a few cases, you may need to specify the ``molecule_type`` as an annotation on a SeqRecord for your script to work correctly. Please see https://biopython.org/wiki/Alphabet for more information.

The Biopython version should be specified more tightly in requirements.txt

[jetu20]

Hi did you solved this issues....I am facing same issues

[a-r-j]

@jetu20 I'm afraid I don't recall. You can probably just install ssbio & then downgrade the Biopython version.

pip install biopython==1.x.x - I'm not sure what the correct version should be, but it will contain the required Bio.Alphabet submodule.

EDIT: I think biopython 1.77 and below should work: https://github.com/biopython/biopython/blob/master/NEWS.rst#4-september-2020-biopython-178