logging.basicConfig

It was quite interesting for me to learn about the Root Logger  inside python logging package

https://www.pylenin.com/blogs/python-logging-guide/#logging-from-multiple-modules

 

Werkzeug

As I got more and more into Flask, I wanted to understand about Werkzeug.

Some helpful links:

• https://stackoverflow.com/questions/37004983/what-exactly-is-werkzeug
• https://stackoverflow.com/questions/14814201/can-i-serve-multiple-clients-using-just-flask-app-run-as-standalone

Azure ML SDK  uses ngix + gUnicorn  within its docker image:

• https://liupeirong.github.io/amlDockerImage/

 

 

Flask RESTful

Found these two posts very useful in understanding the Flask-Restful package

• https://blog.miguelgrinberg.com/post/designing-a-restful-api-with-python-and-flask
• https://blog.miguelgrinberg.com/post/designing-a-restful-api-using-flask-restful

Converting Python objects to json.

Converting Python objects to json.

Very interesting!

https://blog.softhints.com/python-convert-object-to-json-3-examples/

Python dictionary == operator

Its interesting to note that python dictionaries support the == operator

References:

• https://stackoverflow.com/a/5635309
• https://stackoverflow.com/questions/17217225/what-does-the-operator-actually-do-on-a-python-dictionary
• https://www.laurentluce.com/posts/python-dictionary-implementation/
  • This is a nice read on Python’s dictionary implementation using hash tables
• https://hg.python.org/cpython/file/6f535c725b27/Objects/dictobject.c#l1839

Interfaces in Python : DuckTyping + ABCs

References:

• http://masnun.rocks/2017/04/15/interfaces-in-python-protocols-and-abcs/

Code:

 

Python sorted, itemgetter, stdin

I find it interesting how implementing a simple algorithm can teach you so many new things.

I was recently implementing the fractional knapsack problem

The interesting was – during implementation I got to learn some interesting things about Python.

• sorted
  • http://www.dr-chuck.com/csev-blog/2010/01/fun-python-syntax-operator-itemgetter-sorted-and-lambda-functions-oh-my/
  • https://algocoding.wordpress.com/2015/04/14/how-to-sort-a-list-of-tuples-in-python-3-4/
    • This link is actually quite useful!
• items, iteritems
  • https://stackoverflow.com/questions/10458437/what-is-the-difference-between-dict-items-and-dict-iteritems
• itemgetter
  • https://stackoverflow.com/questions/15371691/how-to-sort-a-dictionary-by-value-desc-then-by-key-asc
    • cool trick to sort by combination of ascending and descending
• sys.stdin
  • EOF literal for Windows is Control+Z  (not Control+D)

 

Code:

• fractional_knapsack.py