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A minimal pokedex library for Python

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PyPokedex is a minimal pokedex library for Python that uses
[PokeAPI](https://pokeapi.co/) internally to get Pokemon data. A simple example:

## Requirements

- Python 3.8+

## Installing

Use:

```bash
$ pip install pypokedex
```

to get the latest stable release, or:

```bash
$ pip install git+https://github.com/arnavb/pypokedex.git@master
```

to get the latest commit on master.

## Documentation

This package (`pypokedex`) only provides one function through the public
API—`get`. It can be used as follows:

```python
import pypokedex

pokemon = pypokedex.get(dex=DEX)  # DEX must be a valid _national_ pokedex
                                  # number
pokemon2 = pypokedex.get(name=NAME)  # NAME must be a valid name of a pokemon
```

In addition to the above function, the following classes are provided as part of
the public API:

- `Pokemon` (returned by `get`),
- `BaseStats`,
- `Ability`,
- `Sprites`,
- and `Move`

Note that these classes shouldn't be initialized through client code; their
purpose is mainly for type annotations.

### Possible Exceptions

- A `TypeError` will be raised if the wrong number of arguments or the wrong
  type of arguments are passed.
- A `PyPokedexHTTPError` will be raised with an HTTP code of 404 if the Pokemon
  requested is not found. **Note**: The `name` parameter to `get` is
  _case-insensitive_.
- A `PyPokedexHTTPError` will be raised with the proper HTTP code if another
  type of HTTP error occurs.
- A `PyPokedexError` will be raised if a
  [requests exception](http://docs.python-requests.org/en/master/_modules/requests/exceptions/)
  occurs (with the exception of `requests.exceptions.HTTPError`, handled in the
  previous two bullet points).
- A `PyPokedexError` will be raised if data is missing when parsing the returned
  JSON from PokeAPI (usually this indicates an API change).

Once a valid `pypokedex.pokemon.Pokemon` object is returned, the following
members are provided for its consumption:

### Member Variables

- `dex` (`int`): Contains the _national_ Pokedex number of the current Pokemon.
- `name` (`str`): Contains the name of the current Pokemon.
- `height` (`int`): Contains the height of the current Pokemon in decimeters
  (see [veekun/pokedex#249](https://github.com/veekun/pokedex/issues/249)).
- `weight` (`int`): Contains the weight of the current Pokemon in hectograms
  (see [veekun/pokedex#249](https://github.com/veekun/pokedex/issues/249)).
- `base_experience` (`intt`): Contains the base experience yield of the current
  Pokemon.
- `types` (`List[str]`): Contains a list of strings with the name of the current
  Pokemon's types.
- `abilities` (`List[Ability]`): Contains a list of named tuples called
  `Ability`. Each `Ability` has the following members:
  - `name` (`str`): The name of the current ability.
  - `is_hidden` (`bool`): Whether the current ability is a hidden ability or
    not.
- `base_stats` (`BaseStats`): Contains a named tuple with the current Pokemon's
  base stats stored as follows (all `int`s):
  - `hp`: The base HP of the current Pokemon.
  - `attack`: The base attack of the current Pokemon.
  - `defense`: The base defense of the current Pokemon.
  - `sp_atk`: The base special attack of the current Pokemon.
  - `sp_def`: The base special defense of the current Pokemon.
  - `speed`: The base speed of the current Pokemon.
- `moves` (`DefaultDict[str, List[Move]]`): Contains a dictionary of game names
  (according to PokeAPI) to a list of named tuples called `Move` representing
  the moves the current Pokemon learns in the respective game. The `Move` named
  tuple contains the following members:
  - `name` (`str`): The name of the current move.
  - `learn_method` (`str`): The method the current Pokemon uses to learn the
    current move (according to PokeAPI).
  - `level` (`int`): The level the current Pokemon learns the current move if
    `learn_method` is `level-up`, `None` otherwise.
- `sprites` (`Sprites`): Contains two dictionaries, `front` and `back`
  representing the respective sprites of the current Pokemon. The keys in the
  dictionary are
  [Pokeapi sprite keys](https://pokeapi.co/docs/v2.html#pokemonsprites) without
  the direction prefix (e.g `back_default` is just `default` in the `back`
  dictionary).
- `other_sprites` (`Dict[str, Sprites]`): Contains a mapping of sprite groups to
  sprites (sprites are stored in the same way as the `sprites` instance
  variable.
- `version_sprites` (`Dict[str, Dict[str, Sprites]]`): Contains a mapping of
  generations to games to sprites. Note that like the API itself, keys are
  included for all generations and games, despite the fact that those Pokemon
  may not exist in said generation or game. e.g `pypokedex.get(name='garchomp')`
  would include keys for generation 1 through 3, even though it was introduced
  in generation 4.

### Member Functions

- `def exists_in(self, game: str) -> bool`: Method to check whether the current
  Pokemon exists in a specific game.
- `def learns(self, move_name: str, game: str) -> bool`: Method to check whether
  the current Pokemon learns a specific move in a specific game.
- `def get_descriptions(self, language="en") -> Dict[str, str]`: Method to
  returns all the descriptions of the current Pokemon for the specified language
  (en by default). **Note**: This function only returns the descriptions as a
  dictionary. It doesn't store them anywhere on the Pokemon object. This was
  done since the descriptions are fetched from a separate API endpoint.
- `def __str__(self) -> str`: Method to get a string represenation of the
  current Pokemon. This string is of the form:
  `Pokemon(dex={self.dex}, name='{self.name}')`.
- `__eq__, __lt__, __gt__, __le__, __ge__`: Methods that implement various
  comparison operators for Pokemon objects in terms of their Pokedex number.

#### Possible Exceptions

- `learns` will raise a `PyPokedexError` if the current Pokemon does not exist
  in the game specified.

## License

This library is licensed under the
[MIT License](https://github.com/arnavb/pypokedex/blob/master/LICENSE).

### Dependency Licenses

This library depends on [requests](https://github.com/requests/requests), which
is licensed under the
[Apache 2.0 License](https://github.com/requests/requests/blob/master/LICENSE).

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