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Quick Guide for M269

The following explains how to install and use allowed, a tool that checks if your TMA code only uses the Python constructs mentioned in Chapters 10, 20 and 28. The tool is merely a convenience compared to visually inspecting your code.

  1. Open a terminal. Enter python -V to obtain your Python version.

If it is 3.9 or lower, then you can't use allowed, sorry. While you can have multiple Python versions on your system, it's not worth the hassle and potential problems at this point in M269.

Next, if you have Python 3.10 or later, install the allowed tool:

  1. Click the 'Download .zip' button above.
  2. Go to your downloads folder and extract the files from the downloaded archive. (Your web browser may have done it automatically.)
  3. Move the files allowed.py and m269.json from the dsa-ou-allowed-main-24ac36b folder (the last 7 characters may vary) to the folder with your M269 materials.

To use the tool, open a terminal and go to the folder where you put both files:

  1. To check the first TMA, type python allowed.py -u 10 path/to/TMA01.ipynb, e.g. python allowed.py -u 10 TMA01/22J-TMA01-STUDENT.ipynb or similar. (On Windows, use backslashes.)
  2. To check the second TMA, type python allowed.py -u 20 path/to/TMA02.ipynb.
  3. To check the third TMA, type python allowed.py path/to/TMA03.ipynb.

These checks won't detect if you're calling methods that haven't been taught, like count() on lists. It's possible for allowed to check method calls, but it would require installing Linux on Windows. Again, not worth the trouble.