mirror of
https://github.com/Xevion/exercism.git
synced 2026-02-01 04:24:16 -06:00
python house
This commit is contained in:
Xevion
@@ -0,0 +1,155 @@
|
||||
# House
|
||||
|
||||
Recite the nursery rhyme 'This is the House that Jack Built'.
|
||||
|
||||
> [The] process of placing a phrase of clause within another phrase of
|
||||
> clause is called embedding. It is through the processes of recursion
|
||||
> and embedding that we are able to take a finite number of forms (words
|
||||
> and phrases) and construct an infinite number of expressions.
|
||||
> Furthermore, embedding also allows us to construct an infinitely long
|
||||
> structure, in theory anyway.
|
||||
|
||||
- [papyr.com](http://papyr.com/hypertextbooks/grammar/ph_noun.htm)
|
||||
|
||||
The nursery rhyme reads as follows:
|
||||
|
||||
```text
|
||||
This is the house that Jack built.
|
||||
|
||||
This is the malt
|
||||
that lay in the house that Jack built.
|
||||
|
||||
This is the rat
|
||||
that ate the malt
|
||||
that lay in the house that Jack built.
|
||||
|
||||
This is the cat
|
||||
that killed the rat
|
||||
that ate the malt
|
||||
that lay in the house that Jack built.
|
||||
|
||||
This is the dog
|
||||
that worried the cat
|
||||
that killed the rat
|
||||
that ate the malt
|
||||
that lay in the house that Jack built.
|
||||
|
||||
This is the cow with the crumpled horn
|
||||
that tossed the dog
|
||||
that worried the cat
|
||||
that killed the rat
|
||||
that ate the malt
|
||||
that lay in the house that Jack built.
|
||||
|
||||
This is the maiden all forlorn
|
||||
that milked the cow with the crumpled horn
|
||||
that tossed the dog
|
||||
that worried the cat
|
||||
that killed the rat
|
||||
that ate the malt
|
||||
that lay in the house that Jack built.
|
||||
|
||||
This is the man all tattered and torn
|
||||
that kissed the maiden all forlorn
|
||||
that milked the cow with the crumpled horn
|
||||
that tossed the dog
|
||||
that worried the cat
|
||||
that killed the rat
|
||||
that ate the malt
|
||||
that lay in the house that Jack built.
|
||||
|
||||
This is the priest all shaven and shorn
|
||||
that married the man all tattered and torn
|
||||
that kissed the maiden all forlorn
|
||||
that milked the cow with the crumpled horn
|
||||
that tossed the dog
|
||||
that worried the cat
|
||||
that killed the rat
|
||||
that ate the malt
|
||||
that lay in the house that Jack built.
|
||||
|
||||
This is the rooster that crowed in the morn
|
||||
that woke the priest all shaven and shorn
|
||||
that married the man all tattered and torn
|
||||
that kissed the maiden all forlorn
|
||||
that milked the cow with the crumpled horn
|
||||
that tossed the dog
|
||||
that worried the cat
|
||||
that killed the rat
|
||||
that ate the malt
|
||||
that lay in the house that Jack built.
|
||||
|
||||
This is the farmer sowing his corn
|
||||
that kept the rooster that crowed in the morn
|
||||
that woke the priest all shaven and shorn
|
||||
that married the man all tattered and torn
|
||||
that kissed the maiden all forlorn
|
||||
that milked the cow with the crumpled horn
|
||||
that tossed the dog
|
||||
that worried the cat
|
||||
that killed the rat
|
||||
that ate the malt
|
||||
that lay in the house that Jack built.
|
||||
|
||||
This is the horse and the hound and the horn
|
||||
that belonged to the farmer sowing his corn
|
||||
that kept the rooster that crowed in the morn
|
||||
that woke the priest all shaven and shorn
|
||||
that married the man all tattered and torn
|
||||
that kissed the maiden all forlorn
|
||||
that milked the cow with the crumpled horn
|
||||
that tossed the dog
|
||||
that worried the cat
|
||||
that killed the rat
|
||||
that ate the malt
|
||||
that lay in the house that Jack built.
|
||||
```
|
||||
|
||||
## Exception messages
|
||||
|
||||
Sometimes it is necessary to raise an exception. When you do this, you should include a meaningful error message to
|
||||
indicate what the source of the error is. This makes your code more readable and helps significantly with debugging. Not
|
||||
every exercise will require you to raise an exception, but for those that do, the tests will only pass if you include
|
||||
a message.
|
||||
|
||||
To raise a message with an exception, just write it as an argument to the exception type. For example, instead of
|
||||
`raise Exception`, you should write:
|
||||
|
||||
```python
|
||||
raise Exception("Meaningful message indicating the source of the error")
|
||||
```
|
||||
|
||||
## Running the tests
|
||||
|
||||
To run the tests, run the appropriate command below ([why they are different](https://github.com/pytest-dev/pytest/issues/1629#issue-161422224)):
|
||||
|
||||
- Python 2.7: `py.test house_test.py`
|
||||
- Python 3.4+: `pytest house_test.py`
|
||||
|
||||
Alternatively, you can tell Python to run the pytest module (allowing the same command to be used regardless of Python version):
|
||||
`python -m pytest house_test.py`
|
||||
|
||||
### Common `pytest` options
|
||||
|
||||
- `-v` : enable verbose output
|
||||
- `-x` : stop running tests on first failure
|
||||
- `--ff` : run failures from previous test before running other test cases
|
||||
|
||||
For other options, see `python -m pytest -h`
|
||||
|
||||
## Submitting Exercises
|
||||
|
||||
Note that, when trying to submit an exercise, make sure the solution is in the `$EXERCISM_WORKSPACE/python/house` directory.
|
||||
|
||||
You can find your Exercism workspace by running `exercism debug` and looking for the line that starts with `Workspace`.
|
||||
|
||||
For more detailed information about running tests, code style and linting,
|
||||
please see [Running the Tests](http://exercism.io/tracks/python/tests).
|
||||
|
||||
## Source
|
||||
|
||||
British nursery rhyme [http://en.wikipedia.org/wiki/This_Is_The_House_That_Jack_Built](http://en.wikipedia.org/wiki/This_Is_The_House_That_Jack_Built)
|
||||
|
||||
## Submitting Incomplete Solutions
|
||||
|
||||
It's possible to submit an incomplete solution so you can see how others have completed the exercise.
|
||||
Reference in New Issue
Block a user