ImportError: cannot import name 'demultiplex' from 'umi'

[qicheng-ma]

Dear Admin,

After I install Guidseq from conda, when I run it, it says there is no "UMI" package, so I installed " umi " package and " demultiplex " package by:

$pip3 install umi
$pip3 install demultiplex

But when I run "python3 guideseq.py identify ", I get the error message:
... ...
guideseq.py:230: SyntaxWarning: "is" with a literal. Did you mean "=="?
if sample is 'control':
Traceback (most recent call last):

line 23, in
from umi import demultiplex, umitag, consolidate
ImportError: cannot import name 'demultiplex' from 'umi'

I appreciate your help!
Thanks!