PR comments and update for openfhe-python

Hi there:
I’m contributing to OpenFHE Python from last year; today I’m pushing a new PR to allow for len() method for Ciphertext and Keys in Openfhe-Python/dev branch here.

Besides, I have reviewed the other two pending PRs, which seem to be OK to merge per me.

  1. Error message update looks good as well: PR #192
  2. Docker instance with Jupyter looks good as well : PR

@ai-mannamalai I will review them. Hopefully today

@ai-mannamalai Seems like this PR can be just closed without merging

@ai-mannamalai unittests failed for PR.

@ai-mannamalai Please check my update to your PR

Seems like the parameter 78 for setModSize is incorrect;

Failure in case:

> E       RuntimeError: /home/ubuntu/actions-runner/_work/openfhe-python/openfhe-python/openfhe-development/src/pke/lib/scheme/gen-cryptocontext-params-validation.cpp:l.50:validateParametersForCryptocontext(): scalingModSize should be less than 28


Ref: https://github.com/openfheorg/openfhe-python/actions/runs/13638593457/job/38123130569