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Luciano Ramalho 2021-07-08 12:41:18 -03:00 committed by GitHub
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@ -23,14 +23,4 @@ The copyright holder is Peter Norvig and the code is licensed under the
[MIT license](https://github.com/norvig/pytudes/blob/60168bce8cdfacf57c92a5b2979f0b2e95367753/LICENSE).
## Changes to Norvig's code
I made small changes to the programs in `original/`:
* In `lis.py`:
* The `Procedure` class accepts a list of expressions as the `body`, and `__call__` evaluates those expressions in order, and returns the value of the last. This is consistent with Scheme's `lambda` syntax and provided a useful example for pattern matching.
* In the `elif` block for `'lambda'`, I added the `*` in front of the `*body` variable in the tuple unpacking to capture the expressions as a list, before calling the `Procedure` constructor.
* In `lispy.py` I made [changes and a pull request](https://github.com/norvig/pytudes/pull/106) to make it run on Python 3.
_Luciano Ramalho<br/>June 29, 2021_