primeiro commit com exercicios de Exercism realizados até esta data
This commit is contained in:
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{
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"authors": [],
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"contributors": [
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"abhijitparida",
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"behrtam",
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"cmccandless",
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"crsmi",
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"Dog",
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"gabriel376",
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"gabriellhrn",
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"ikhadykin",
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"kytrinyx",
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"lowks",
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"N-Parsons",
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"pheanex",
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"sjakobi",
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"tqa236",
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"AndrewLawendy"
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],
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"files": {
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"solution": [
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"space_age.py"
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],
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"test": [
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"space_age_test.py"
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],
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"example": [
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".meta/example.py"
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]
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},
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"blurb": "Given an age in seconds, calculate how old someone is in terms of a given planet's solar years.",
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"source": "Partially inspired by Chapter 1 in Chris Pine's online Learn to Program tutorial.",
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"source_url": "https://pine.fm/LearnToProgram/?Chapter=01"
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}
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{"track":"python","exercise":"space-age","id":"4681f2f4a1e34ed3a75ca3766a3bcecb","url":"https://exercism.org/tracks/python/exercises/space-age","handle":"sanctushck","is_requester":true,"auto_approve":false}
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# Help
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## Running the tests
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We use [pytest][pytest: Getting Started Guide] as our website test runner.
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You will need to install `pytest` on your development machine if you want to run tests for the Python track locally.
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You should also install the following `pytest` plugins:
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- [pytest-cache][pytest-cache]
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- [pytest-subtests][pytest-subtests]
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Extended information can be found in our website [Python testing guide][Python track tests page].
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### Running Tests
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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_).
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Test files usually end in `_test.py`, and are the same tests that run on the website when a solution is uploaded.
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Linux/MacOS
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```bash
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$ cd {path/to/exercise-folder-location}
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```
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Windows
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```powershell
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PS C:\Users\foobar> cd {path\to\exercise-folder-location}
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```
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<br>
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Next, run the `pytest` command in your terminal, replacing `{exercise_test.py}` with the name of the test file:
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Linux/MacOS
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```bash
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$ python3 -m pytest -o markers=task {exercise_test.py}
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==================== 7 passed in 0.08s ====================
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```
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Windows
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```powershell
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PS C:\Users\foobar> py -m pytest -o markers=task {exercise_test.py}
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==================== 7 passed in 0.08s ====================
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```
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### Common options
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- `-o` : override default `pytest.ini` (_you can use this to avoid marker warnings_)
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- `-v` : enable verbose output.
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- `-x` : stop running tests on first failure.
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- `--ff` : run failures from previous test before running other test cases.
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For additional options, use `python3 -m pytest -h` or `py -m pytest -h`.
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### Fixing warnings
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If you do not use `pytest -o markers=task` when invoking `pytest`, you might receive a `PytestUnknownMarkWarning` for tests that use our new syntax:
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```bash
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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
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```
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To avoid typing `pytest -o markers=task` for every test you run, you can use a `pytest.ini` configuration file.
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We have made one that can be downloaded from the top level of the Python track directory: [pytest.ini][pytest.ini].
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You can also create your own `pytest.ini` file with the following content:
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```ini
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[pytest]
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markers =
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task: A concept exercise task.
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```
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Placing the `pytest.ini` file in the _root_ or _working_ directory for your Python track exercises will register the marks and stop the warnings.
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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].
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Information on customizing pytest configurations can be found in the `pytest` documentation on [configuration file formats][pytest: configuration file formats].
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### Extending your IDE or Code Editor
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Many IDEs and code editors have built-in support for using `pytest` and other code quality tools.
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Some community-sourced options can be found on our [Python track tools page][Python track tools page].
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[Pytest: Getting Started Guide]: https://docs.pytest.org/en/latest/getting-started.html
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[Python track tools page]: https://exercism.org/docs/tracks/python/tools
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[Python track tests page]: https://exercism.org/docs/tracks/python/tests
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[pytest-cache]:http://pythonhosted.org/pytest-cache/
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[pytest-subtests]:https://github.com/pytest-dev/pytest-subtests
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[pytest.ini]: https://github.com/exercism/python/blob/main/pytest.ini
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[pytest: configuration file formats]: https://docs.pytest.org/en/6.2.x/customize.html#configuration-file-formats
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[pytest: marking test functions with attributes]: https://docs.pytest.org/en/6.2.x/mark.html#raising-errors-on-unknown-marks
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[pytest: working with custom markers]: https://docs.pytest.org/en/6.2.x/example/markers.html#working-with-custom-markers
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## Submitting your solution
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You can submit your solution using the `exercism submit space_age.py` command.
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This command will upload your solution to the Exercism website and print the solution page's URL.
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It's possible to submit an incomplete solution which allows you to:
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- See how others have completed the exercise
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- Request help from a mentor
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## Need to get help?
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If you'd like help solving the exercise, check the following pages:
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- The [Python track's documentation](https://exercism.org/docs/tracks/python)
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- The [Python track's programming category on the forum](https://forum.exercism.org/c/programming/python)
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- [Exercism's programming category on the forum](https://forum.exercism.org/c/programming/5)
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- The [Frequently Asked Questions](https://exercism.org/docs/using/faqs)
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Should those resources not suffice, you could submit your (incomplete) solution to request mentoring.
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Below are some resources for getting help if you run into trouble:
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- [The PSF](https://www.python.org) hosts Python downloads, documentation, and community resources.
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- [The Exercism Community on Discord](https://exercism.org/r/discord)
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- [Python Community on Discord](https://pythondiscord.com/) is a very helpful and active community.
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- [/r/learnpython/](https://www.reddit.com/r/learnpython/) is a subreddit designed for Python learners.
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- [#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.
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- [Python Community Forums](https://discuss.python.org/)
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- [Free Code Camp Community Forums](https://forum.freecodecamp.org/)
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- [CodeNewbie Community Help Tag](https://community.codenewbie.org/t/help)
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- [Pythontutor](http://pythontutor.com/) for stepping through small code snippets visually.
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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.
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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.
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# Space Age
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Welcome to Space Age on Exercism's Python Track.
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If you need help running the tests or submitting your code, check out `HELP.md`.
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## Introduction
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The year is 2525 and you've just embarked on a journey to visit all planets in the Solar System (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune).
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The first stop is Mercury, where customs require you to fill out a form (bureaucracy is apparently _not_ Earth-specific).
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As you hand over the form to the customs officer, they scrutinize it and frown.
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"Do you _really_ expect me to believe you're just 50 years old?
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You must be closer to 200 years old!"
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Amused, you wait for the customs officer to start laughing, but they appear to be dead serious.
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You realize that you've entered your age in _Earth years_, but the officer expected it in _Mercury years_!
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As Mercury's orbital period around the sun is significantly shorter than Earth, you're actually a lot older in Mercury years.
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After some quick calculations, you're able to provide your age in Mercury Years.
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The customs officer smiles, satisfied, and waves you through.
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You make a mental note to pre-calculate your planet-specific age _before_ future customs checks, to avoid such mix-ups.
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~~~~exercism/note
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If you're wondering why Pluto didn't make the cut, go watch [this YouTube video][pluto-video].
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[pluto-video]: https://www.youtube.com/watch?v=Z_2gbGXzFbs
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~~~~
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## Instructions
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Given an age in seconds, calculate how old someone would be on a planet in our Solar System.
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One Earth year equals 365.25 Earth days, or 31,557,600 seconds.
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If you were told someone was 1,000,000,000 seconds old, their age would be 31.69 Earth-years.
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For the other planets, you have to account for their orbital period in Earth Years:
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| Planet | Orbital period in Earth Years |
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| ------- | ----------------------------- |
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| Mercury | 0.2408467 |
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| Venus | 0.61519726 |
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| Earth | 1.0 |
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| Mars | 1.8808158 |
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| Jupiter | 11.862615 |
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| Saturn | 29.447498 |
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| Uranus | 84.016846 |
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| Neptune | 164.79132 |
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~~~~exercism/note
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The actual length of one complete orbit of the Earth around the sun is closer to 365.256 days (1 sidereal year).
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The Gregorian calendar has, on average, 365.2425 days.
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While not entirely accurate, 365.25 is the value used in this exercise.
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See [Year on Wikipedia][year] for more ways to measure a year.
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[year]: https://en.wikipedia.org/wiki/Year#Summary
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~~~~
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For the Python track, this exercise asks you to create a `SpaceAge` _class_ (_[concept:python/classes]()_) that includes methods for all the planets of the solar system.
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Methods should follow the naming convention `on_<planet name>`.
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Each method should `return` the age (_"on" that planet_) in years, rounded to two decimal places:
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```python
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#creating an instance with one billion seconds, and calling .on_earth().
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>>> SpaceAge(1000000000).on_earth()
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#This is one billion seconds on Earth in years
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31.69
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```
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For more information on constructing and using classes, see:
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- [**A First Look at Classes**][first look at classes] from the Python documentation.
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- [**A Word About names and Objects**][names and objects] from the Python documentation.
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- [**Objects, values, and types**][objects, values and types] in the Python data model documentation.
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- [**What is a Class?**][what is a class] from Trey Hunners Python Morsels website.
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[first look at classes]: https://docs.python.org/3/tutorial/classes.html#a-first-look-at-classes
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[names and objects]: https://docs.python.org/3/tutorial/classes.html#a-word-about-names-and-objects
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[objects, values and types]: https://docs.python.org/3/reference/datamodel.html#objects-values-and-types
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[what is a class]: https://www.pythonmorsels.com/what-is-a-class/
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## Source
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### Contributed to by
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- @abhijitparida
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- @behrtam
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- @cmccandless
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- @crsmi
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- @Dog
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- @gabriel376
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- @gabriellhrn
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- @ikhadykin
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- @kytrinyx
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- @lowks
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- @N-Parsons
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- @pheanex
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- @sjakobi
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- @tqa236
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- @AndrewLawendy
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### Based on
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Partially inspired by Chapter 1 in Chris Pine's online Learn to Program tutorial. - https://pine.fm/LearnToProgram/?Chapter=01
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class SpaceAge:
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def __init__(self, seconds: int):
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self.age_in_seconds: int = seconds
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self.precision: int = 2
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self.seconds_earth_years: int = int(365.25 * 24 * 60 * 60)
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def on_earth(self) -> float:
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return round(
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self.age_in_seconds /
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(self.seconds_earth_years) / 1, self.precision
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)
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def on_mercury(self):
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return round(
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self.age_in_seconds / self.seconds_earth_years / 0.2408467, self.precision
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)
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def on_venus(self):
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return round(
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self.age_in_seconds / self.seconds_earth_years / 0.61519726, self.precision
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)
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def on_mars(self):
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return round(
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self.age_in_seconds / self.seconds_earth_years / 1.8808158, self.precision
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)
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def on_jupiter(self):
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return round(
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self.age_in_seconds / self.seconds_earth_years / 11.862615, self.precision
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)
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def on_saturn(self):
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return round(
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self.age_in_seconds / self.seconds_earth_years / 29.447498, self.precision
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)
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def on_uranus(self):
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retur round(
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self.age_in_seconds / self.seconds_earth_years / 84.016846, self.precision
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)
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def on_neptune(self):
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return round(
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self.age_in_seconds / self.seconds_earth_years / 164.79132, self.precision
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)
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# These tests are auto-generated with test data from:
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# https://github.com/exercism/problem-specifications/tree/main/exercises/space-age/canonical-data.json
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# File last updated on 2023-07-19
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import unittest
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from space_age import (
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SpaceAge,
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)
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class SpaceAgeTest(unittest.TestCase):
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def test_age_on_earth(self):
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self.assertEqual(SpaceAge(1000000000).on_earth(), 31.69)
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def test_age_on_mercury(self):
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self.assertEqual(SpaceAge(2134835688).on_mercury(), 280.88)
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def test_age_on_venus(self):
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self.assertEqual(SpaceAge(189839836).on_venus(), 9.78)
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def test_age_on_mars(self):
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self.assertEqual(SpaceAge(2129871239).on_mars(), 35.88)
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def test_age_on_jupiter(self):
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self.assertEqual(SpaceAge(901876382).on_jupiter(), 2.41)
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def test_age_on_saturn(self):
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self.assertEqual(SpaceAge(2000000000).on_saturn(), 2.15)
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def test_age_on_uranus(self):
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self.assertEqual(SpaceAge(1210123456).on_uranus(), 0.46)
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def test_age_on_neptune(self):
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self.assertEqual(SpaceAge(1821023456).on_neptune(), 0.35)
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