Testing is important to make sure your code behaves correctly and that new changes don’t break old code. You can learn some best practices for testing and talk on how you can uses a continuous integration (CI) system like Jenkins in your development proce
- [Instructor] Another essential part…of your process should be testing.…Testing ensures that your code behaves…the way it's supposed to,…and that we didn't break one thing…while fixing another or adding a new feature.…There are many types of tests.…Unit tests, regression tests,…acceptance tests, functional tests,…stress tests, fahzers, and many other.…You don't have to be a testing expert.…Pick the areas in your code you think are most important…and test them.…Tests also have a downside.…It takes time to write them,…and every time we change our code,…we also need to change some tests.…
We say that tests add mass to the code…and make changes more difficult.…I say that testing is a balancing act…between pain and gain.…The pain is how many tests you write.…The gain is the cost of an error in your code.…If we're writing an internal app for a company bugs,…as unpleasant as they are, are not that critical…and are easier to fix.…However, if we're writing software…that peoples' lives depend on it,…a software that will run on a device on Mars,…
Author
Miki Tebeka
Released
7/18/2017- Working with Jupyter notebooks
- Using code cells
- Extensions to the Python language
- Markdown cells
- Editing notebooks
- NumPy basics
- Broadcasting, array operations, and ufuncs
- Pandas
- Conda
- Folium and Geo
- Machine learning with scikit-learn
- Plotting with matplotlib and bokeh
- Branching into Numba, Cython, deep learning, and NLP
Skill Level Intermediate
Duration
Views
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Introduction
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Welcome46s
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Mac setup1m 45s
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Windows setup59s
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Linux setup55s
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1. Scientific Python Overview
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2. The Jupyter Notebook
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Use code cells3m 4s
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Understand markdown cells3m 23s
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Edit notebooks4m 10s
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3. NumPy Basics
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Overview: NumPy2m 1s
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NumPy arrays4m 51s
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Slicing2m 24s
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Learn Boolean indexing4m 8s
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Understand broadcasting2m 32s
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Understand array operations5m 27s
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Understand ufuncs5m 7s
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4. Pandas
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Pandas overview1m 58s
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Load CSV files5m 19s
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Parse time1m 46s
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Access rows and columns6m 2s
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Use pure Python packages2m 19s
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Calculate speed6m 26s
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Display a speed box plot2m 41s
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5. Conda
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Manage environments5m 11s
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6. Folium and Geo
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Draw a track on the map4m 51s
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Use geo data with Shapely6m 10s
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Generate a report3m 41s
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7. NY Taxi Data
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Examine data2m 7s
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Load data from CSV files2m 44s
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Work with categorical data2m 50s
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Work with data: Weather data5m 30s
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8. scikit-learn
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Introduction: scikit-learn1m 15s
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Understand train/test splits2m 30s
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Preprocess data4m 32s
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Compose pipelines2m 40s
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Save and load models1m 27s
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9. Plotting
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Overview: matplotlib1m 5s
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Use styles3m 1s
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Customize Pandas output5m 38s
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Use matplotlib3m 13s
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Tips and tricks6m 1s
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Understand bokeh4m 36s
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10. Other Packages
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Other packages overview1m 19s
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Understand deep learning7m 52s
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Understand NLP: NLTK6m 43s
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Understand NLP: SpaCy2m 51s
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11. Development Process
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Overview55s
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Understand source control3m 43s
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Learn code review4m 55s
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Testing overview2m 19s
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Testing example3m 48s
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Conclusion
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Next steps1m 33s
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Video: Testing overview