Error installing with pypi

[mshiffer]

I tried "pip install quaec" and got the following error. It seems to be choking on an "import singletons" line. Was going to install it msyelf but I couldn't find any reference to the singletons package on the web. (Instead finding a lot about the concept of singletons.).:

Downloading QuaEC-1.0.1.zip (78 k)
Preparing metadata (setup.py) ... error
error: subprocess-exited-with-error

× python setup.py egg_info did not run successfully.
│ exit code: 1
╰─> [8 lines of output]
Traceback (most recent call last):
File "", line 2, in
File "", line 34, in
File "C:\Users\mshif\AppData\Local\Temp\pip-install-ijdqt1zj\quaec_0cb19c1bfdcf42e1a796d7779929f416\setup.py", line 6, in
import qecc as q
File "C:\Users\mshif\AppData\Local\Temp\pip-install-ijdqt1zj\quaec_0cb19c1bfdcf42e1a796d7779929f416\src\qecc_init_.py", line 29, in
import singletons as _sing
ModuleNotFoundError: No module named 'singletons'
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.