Playground repo for Python projects

This repo has multiple branches and each branch represent different projects/proof of concepts for playing with Python technologies/frameworks.

P.S. master branch is empty and has only this README.md file

Table of Contents

• Status Updates
• Installation
• Resources

Status Updates

• learn/pipenv-pipfile - Pipenv and Pipfile
  • Day 1 - March 25th, 2020

Day 1

• pipenv install - Similar to npm install. Creates 2 files Pipfile and Pipfile.lock similar to package-lock.json in the javascript world with dependencies based on requirements.txt

• pipenv shell - Activates the virtual environment. Much simpler than virtualenv

• Once the shell is activated, run python3 hello.py to bring the Flask app UP!!

• By default the flask app runs on 5000 port - http://localhost:5000/hello

• pipenv install PyPDF2 - installs the PyPDF2 package and updates Pipfile and Pipfile.lock files.

• Once the shell is activated, run python3 pdf_reader.py to read the example.pdf file

• basics.py - file which includes all basic syntaxes in python

• modules.py

  • python searches the list of directories from sys.path. Use sys.path.append(directory_path) to add directory searches during import.

    python3          
    Python 3.7.5 (default, Nov  1 2019, 02:16:32) 
    [Clang 11.0.0 (clang-1100.0.33.8)] on darwin
    Type "help", "copyright", "credits" or "license" for more information.
    >>> import sys
    >>> sys.path
    ['', '/usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/lib/python37.zip', '/usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/lib/python3.7', '/usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/lib/python3.7/lib-dynload', '/usr/local/lib/python3.7/site-packages']

  • Alternatively use PYTHONPATH to set the package/module import paths.
  • If a package has __init__.py, it becomes a module
  • learn is a module which is used in modules.py

• learn/functions - Functions

  • Day 2
    • Started using callable functions inside a class
  • Day 3
    • Started using Functions and String manipulation

• learn/tuples - Tuples

  • Day 4
    • Started using tuples

• learn/dictionaries - Dictionaries

  • Day 5
    • Started using dictionaries
    • Started using set

Installation

Command used in Mac for installing supporting tools

• Python3 - brew install python3
• Pipenv - brew install pipenv

Resources

• Introducing Python - Oreilly - Most exhaustive and amazing book..!