Python generators

python/README.md

@@ -38,3 +38,4 @@
 - [saddle-points](./saddle-points/README.md)
 - [leap](./leap/README.md)
 - [mecha-munch-management](./mecha-munch-management/README.md)
+- [plane-tickets](./plane-tickets/README.md)

python/plane-tickets/.coverage.xml

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+<?xml version="1.0" ?>
+<coverage version="7.4.0" timestamp="1712288392527" lines-valid="36" lines-covered="36" line-rate="1" branches-valid="12" branches-covered="12" branch-rate="1" complexity="0">
+	<!-- Generated by coverage.py: https://coverage.readthedocs.io/en/7.4.0 -->
+	<!-- Based on https://raw.githubusercontent.com/cobertura/web/master/htdocs/xml/coverage-04.dtd -->
+	<sources>
+		<source>/home/vpayno/git_vpayno/exercism-workspace/python/plane-tickets</source>
+	</sources>
+	<packages>
+		<package name="." line-rate="1" branch-rate="1" complexity="0">
+			<classes>
+				<class name="generators.py" filename="generators.py" complexity="0" line-rate="1" branch-rate="1">
+					<methods/>
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+					</lines>
+				</class>
+			</classes>
+		</package>
+	</packages>
+</coverage>

python/plane-tickets/.coveragerc

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+[run]
+omit = __init__.py, *_test.py

python/plane-tickets/.exercism/config.json

@@ -0,0 +1,23 @@
+{
+  "authors": [
+    "J08K"
+  ],
+  "contributors": [
+    "BethanyG",
+    "kytrinyx",
+    "meatball133"
+  ],
+  "files": {
+    "solution": [
+      "generators.py"
+    ],
+    "test": [
+      "generators_test.py"
+    ],
+    "exemplar": [
+      ".meta/exemplar.py"
+    ]
+  },
+  "icon": "new-passport",
+  "blurb": "Learn about generators by assigning seats to passengers on Anaconda Airlines."
+}

python/plane-tickets/.exercism/metadata.json

@@ -0,0 +1 @@
+{"track":"python","exercise":"plane-tickets","id":"64bebba2c2354807b821de9b93c9cfab","url":"https://exercism.org/tracks/python/exercises/plane-tickets","handle":"vpayno","is_requester":true,"auto_approve":false}

python/plane-tickets/.pylintrc

@@ -0,0 +1 @@
+../.pylintrc

python/plane-tickets/HELP.md

@@ -0,0 +1,130 @@
+# Help
+
+## Running the tests
+
+We use [pytest][pytest: Getting Started Guide] as our website test runner.
+You will need to install `pytest` on your development machine if you want to run tests for the Python track locally.
+You should also install the following `pytest` plugins:
+
+- [pytest-cache][pytest-cache]
+- [pytest-subtests][pytest-subtests]
+
+Extended information can be found in our website [Python testing guide][Python track tests page].
+
+
+### Running Tests
+
+To run the included tests, navigate to the folder where the exercise is stored using `cd` in your terminal (_replace `{exercise-folder-location}` below with your path_).
+Test files usually end in `_test.py`, and are the same tests that run on the website when a solution is uploaded.
+
+Linux/MacOS
+```bash
+$ cd {path/to/exercise-folder-location}
+```
+
+Windows
+```powershell
+PS C:\Users\foobar> cd {path\to\exercise-folder-location}
+```
+
+<br>
+
+Next, run the `pytest` command in your terminal, replacing `{exercise_test.py}` with the name of the test file:
+
+Linux/MacOS
+```bash
+$ python3 -m pytest -o markers=task {exercise_test.py}
+==================== 7 passed in 0.08s ====================
+```
+
+Windows
+```powershell
+PS C:\Users\foobar> py -m pytest -o markers=task {exercise_test.py}
+==================== 7 passed in 0.08s ====================
+```
+
+
+### Common options
+- `-o` : override default `pytest.ini` (_you can use this to avoid marker warnings_)
+- `-v` : enable verbose output.
+- `-x` : stop running tests on first failure.
+- `--ff` : run failures from previous test before running other test cases.
+
+For additional options, use `python3 -m pytest -h` or `py -m pytest -h`.
+
+
+### Fixing warnings
+
+If you do not use `pytest -o markers=task` when invoking `pytest`, you might receive a `PytestUnknownMarkWarning` for tests that use our new syntax:
+
+```bash
+PytestUnknownMarkWarning: Unknown pytest.mark.task - is this a typo?  You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/stable/mark.html
+```
+
+To avoid typing `pytest -o markers=task` for every test you run, you can use a `pytest.ini` configuration file.
+We have made one that can be downloaded from the top level of the Python track directory: [pytest.ini][pytest.ini].
+
+You can also create your own `pytest.ini` file with the following content:
+
+```ini
+[pytest]
+markers =
+    task: A concept exercise task.
+```
+
+Placing the `pytest.ini` file in the _root_ or _working_ directory for your Python track exercises will register the marks and stop the warnings.
+More information on pytest marks can be found in the `pytest` documentation on [marking test functions][pytest: marking test functions with attributes] and the `pytest` documentation on [working with custom markers][pytest: working with custom markers].
+
+Information on customizing pytest configurations can be found in the `pytest` documentation on [configuration file formats][pytest: configuration file formats].
+
+
+### Extending your IDE or Code Editor
+
+Many IDEs and code editors have built-in support for using `pytest` and other code quality tools.
+Some community-sourced options can be found on our [Python track tools page][Python track tools page].
+
+[Pytest: Getting Started Guide]: https://docs.pytest.org/en/latest/getting-started.html
+[Python track tools page]: https://exercism.org/docs/tracks/python/tools
+[Python track tests page]: https://exercism.org/docs/tracks/python/tests
+[pytest-cache]:http://pythonhosted.org/pytest-cache/
+[pytest-subtests]:https://github.com/pytest-dev/pytest-subtests
+[pytest.ini]: https://github.com/exercism/python/blob/main/pytest.ini
+[pytest: configuration file formats]: https://docs.pytest.org/en/6.2.x/customize.html#configuration-file-formats
+[pytest: marking test functions with attributes]: https://docs.pytest.org/en/6.2.x/mark.html#raising-errors-on-unknown-marks
+[pytest: working with custom markers]: https://docs.pytest.org/en/6.2.x/example/markers.html#working-with-custom-markers
+
+## Submitting your solution
+
+You can submit your solution using the `exercism submit generators.py` command.
+This command will upload your solution to the Exercism website and print the solution page's URL.
+
+It's possible to submit an incomplete solution which allows you to:
+
+- See how others have completed the exercise
+- Request help from a mentor
+
+## Need to get help?
+
+If you'd like help solving the exercise, check the following pages:
+
+- The [Python track's documentation](https://exercism.org/docs/tracks/python)
+- The [Python track's programming category on the forum](https://forum.exercism.org/c/programming/python)
+- [Exercism's programming category on the forum](https://forum.exercism.org/c/programming/5)
+- The [Frequently Asked Questions](https://exercism.org/docs/using/faqs)
+
+Should those resources not suffice, you could submit your (incomplete) solution to request mentoring.
+
+Below are some resources for getting help if you run into trouble:
+
+- [The PSF](https://www.python.org) hosts Python downloads, documentation, and community resources.
+- [The Exercism Community on Discord](https://exercism.org/r/discord)
+- [Python Community on Discord](https://pythondiscord.com/) is a very helpful and active community.
+- [/r/learnpython/](https://www.reddit.com/r/learnpython/) is a subreddit designed for Python learners.
+- [#python on Libera.chat](https://www.python.org/community/irc/) this is where the core developers for the language hang out and get work done.
+- [Python Community Forums](https://discuss.python.org/)
+- [Free Code Camp Community Forums](https://forum.freecodecamp.org/)
+- [CodeNewbie Community Help Tag](https://community.codenewbie.org/t/help)
+- [Pythontutor](http://pythontutor.com/) for stepping through small code snippets visually.
+
+Additionally, [StackOverflow](http://stackoverflow.com/questions/tagged/python) is a good spot to search for your problem/question to see if it has been answered already.
+ If not - you can always [ask](https://stackoverflow.com/help/how-to-ask) or [answer](https://stackoverflow.com/help/how-to-answer) someone else's question.

python/plane-tickets/HINTS.md

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+# Hints
+
+## 1. Generate seat letters
+
+- The returned value should be of _type_ `generator`.
+- You can have a sequence of letters from `A` to `D` and cycle through them.
+- Use `yield` to return the next letter.
+
+## 2. Generate seats
+
+- The returned value should be of _type_ `generator`.
+- Row `13` should be skipped, so go from `12` to `14`.
+- Keep in mind that the returned values should be ordered from low to high. `1A, 1B, 2A, ...`
+- Here it might be good to reuse or call functions you have already defined.
+
+## 3. Assign seats to passengers
+
+- Make sure your seat numbers do not have any spaces in them.
+- Here it might be good to reuse or call functions you have already defined.
+
+## 4. Ticket codes
+
+- You can use `len()` to get the length of a string.
+- You can use `"<string>" * <int>` to repeat a string.