1. Software Engineering for Data Scientists
Knowledge and solutions for a changing world
Advancing data-intensive discovery in all fields
Be boundless
Software Engineering for Data Scientists
UW DIRECT
(Doing Insanely Radical Elegant Coding Tricks)
David A. C. Beck (dacb)
Chemical Engineering & eScience Institute

2. Important piece of bidness
This is an interactive, supportive environment
Don’t be shy!
Feel free to say
Slow down
I need help
That’s a fantastic tie!
We want you to succeed!
To those with more experience:
Don’t hesitate to jump in with peer support

3. Python First released in 1991 (young!, e.g. C ~ 1970) Guido van Rossum
‘Guido says…’
Purposeful design (unlike R or perl)
Philosophy
Computer programming for everyone
Intuitive
Open source!
Reads like English
General purpose
‘Pythonesque way of doing…’

4. Jupyter Notebooks Originally called iPython notebooks
Fernando Pérez (Physicist, LBNL)
Web based notebook similar to
Mathematica
Great environment for exploration
Rich text (markdown) inline comments
Figures embed into the documents
Can be published as workflows (DACB mixed)
NOT as substitute for formal python packages

5. Jupyter Notebooks The conda install should have included jupyter
Open a terminal and do this (note $ is your prompt, do not type)…
$ conda update conda
$ conda install jupyter
This will update your conda installation and install the jupyter framework
Test your install with
$ jupyter notebook
Kill the notebook with Control-C

6. Jupyter system
Setup HCEPDB directory
Notebook files end in .ipynb

7. Jupyter and Python demo
Setup HCEPDB directory
Use the script we created in the first class
Change to a directory where you want the HCEPDB sub-directory to live, e.g. cd ~/Desktop
Save the 01.Intro.setup.sh from the syllabus page to the above directory using your web browser
Run the setup script with bash 01.Intro.setup.sh
Change into the HCEPDB sub-directory

8. Jupyter and Python demo
Download today’s Jupyter notebook from the syllabus page:
Save the 02.Python.ipynb file into your HCEPDB subdirectory
Start a Jupyter notebook ’kernel’ and connect
What if you close the default notebook window?
User interface tour
Basic intro to Python
Basic intro to Jupyter