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Luciano Ramalho 2021-06-29 12:26:50 -03:00 committed by GitHub
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02-array-seq/lispy/README.md
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@ -8,7 +8,7 @@ Norvig's [`lis.py`](https://github.com/norvig/pytudes/blob/c33cd6835a506a57d9fe7
* `py3.10/`: `lis.py` with type hints, pattern matching, and minor edits—requires Python 3.10.
The `py3.10/` directory also has `lis_test.py` to run with
[pytest](https://docs.pytest.org), including all the
[pytest](https://docs.pytest.org), including the
[`lis_tests` suite](https://github.com/norvig/pytudes/blob/60168bce8cdfacf57c92a5b2979f0b2e95367753/py/lispytest.py#L5)
from `original/lispytest.py`,
and additional separate tests for each expression and special form handled by `evaluate`.
@ -28,7 +28,7 @@ The copyright holder is Peter Norvig and the code is licensed under the
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 all those expressions in order, returning the value of the last. This is consistent with Scheme's `lambda` syntax and provided a useful example for pattern matching.
* 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.