Here are some for adding and managing meta-tags and robots.txt for better search engine optimization:
https://github.com/nephila/django-meta
https://github.com/EngincanV/SeoHelper
GitHub - nephila/django-meta: Pluggable app to allow Django developers to quickly add meta tags and OpenGraph, Twitter, and Google Plus properties to their HTML responses.

Pluggable app to allow Django developers to quickly add meta tags and OpenGraph, Twitter, and Google Plus properties to their HTML responses. - GitHub - nephila/django-meta: Pluggable app to allow ...

GitHub
Here is a link to a Firewall repo on GitHub used to protect web applications from a variety of attacks and control bot traffic.  
https://github.com/globaldatanet/aws-firewall-factory
GitHub - globaldatanet/aws-firewall-factory: Enhance the security of your web applications effortlessly with AWS Firewall Factory. Safeguard your valuable assets through seamless WAF deployment, updates, and staging, all centrally managed with AWS Firewall Manager.

Enhance the security of your web applications effortlessly with AWS Firewall Factory. Safeguard your valuable assets through seamless WAF deployment, updates, and staging, all centrally managed wit...

GitHub
Here is link to the GitHub repo for Tuplex, a "parallel big data processing framework that runs data science pipelines written in Python at the speed of compiled code".
GitHub - tuplex/tuplex: Tuplex is a parallel big data processing framework that runs data science pipelines written in Python at the speed of compiled code. Tuplex has similar Python APIs to Apache Spark or Dask, but rather than invoking the Python interpreter, Tuplex generates optimized LLVM bytecode for the given pipeline and input data set.

Tuplex is a parallel big data processing framework that runs data science pipelines written in Python at the speed of compiled code. Tuplex has similar Python APIs to Apache Spark or Dask, but rath...

GitHub
Here is a link to the GitHub repository for Biopython, a "set of freely available tools for biological computation written in Python by an international team of developers".
https://github.com/biopython/biopython
GitHub - biopython/biopython: Official git repository for Biopython (originally converted from CVS)

Official git repository for Biopython (originally converted from CVS) - biopython/biopython

GitHub
@mjkalasky2 Here is a link to the GitHub repository for an implementation of deterministic and non-deterministic turing machines. It is free and open source under the terms of the highly permissive MIT license, and is written in the C and Python programming languages.
https://github.com/yedhukrishnan/turing-machine
GitHub - yedhukrishnan/turing-machine: My implementations of deterministic and non-deterministic turing machines

My implementations of deterministic and non-deterministic turing machines - yedhukrishnan/turing-machine

GitHub