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INTRODUCING PYTHON

Objective

This project is intended to save my progress while learning Python. THIS IS NOT A PYTHON TUTORIAL!

I am using the book "Introducing Python: Modern Computing in Simple Packages" written by Bill Lubanovic and published by O'Reilly. As I read the book, I will create a Jupyter Notebook for my personal annotations, examples and exercise answers.

Currently, this project is being developed in Microsoft Azure Notebooks and saved in GitHub repository. Azure Notebooks is a server-based Jupyter Notebook service.

Azure Project

GitHub Repository

About me

Name: Fernando Hofmeister

Twitter: @fahofmeister

Still developing my coding skills.

Updates

May 26, 2020

To create a file from within the Jupyter Notebook, it must use the following Magic Command on the first line of the cell:

%%writefile file.py

Everything inside this cell below this line will be saved as a text file with the name indicated. Other extensions may be used (like .html). Just remember that everytime you run this cell, the file will be created (if it doesn't exist) or overwritten. Also, files can be created in subfolders by using .\subfolder\file.ext (no need for backslash scape \\).

May 24, 2020

I was wondering how to save this project in GitHub. Luckily, git comes installed with the Azure Notebooks. So, I followed these steps:

  • Create a new GitHub repository
  • Open the terminal
  • Change to library folder (this is your current project folder): cd library
  • Init your local git repository: git init
  • Create a .gitignore file (I suggest using https://www.gitignore.io/ with the keywords Pyhton and Jupyter Notebooks)
  • Add all your current files: git add --all
  • Create your commit: git commit -m "your message"
  • Create a remote branch: git remote add origin https://github.com/username/new_repo
  • Push your commit: git push -u origin master

This priceless information was found in this site: https://kbroman.org/github_tutorial/pages/init.html

May 05, 2020

In Chapter 8 of the book is required to install a package through pip. Therefore, to install any package should use the following syntax in any code cell: !pip install [package_name]

Examples:

!pip install sqlalchemy

Important

Packages installed through virtual terminal are available only during the session. Use only to test a few methods in the terminal.

Reference: https://docs.microsoft.com/en-us/azure/notebooks/install-packages-jupyter-notebook

April 22, 2020

I've noticed that writing to a text file always come up with the same result, it doesn't matter if it is through write() method or print(), the output file is always considering the spaces and newlines. Don't know yet if this is caused by the Python version or the Azure implementation.

Also, I'm still figuring out the arguments sep and end used in print() and how to apply them.

March 26, 2020

I've just found that you can create .py files in Azure Notebooks and run them in the virtual terminal. The files are saved inside the folder Library. Linux command applies in the terminal.

Therefore, I decided to reorganize and create a folder for each chapter of the book. This way, I may alternate between .py files and Jupyter Notebooks in the same environment. I don't need to install python locally while learning Python.

Note: The folders in the terminal are case sensitive.