# cachepot
[](https://pypi.python.org/pypi/cachepot/)
[](https://pypi.python.org/pypi/cachepot/)
[](https://pypi.python.org/pypi/cachepot/)
[](https://github.com/kitsuyui/cachepot/actions/workflows/python-test.yml)
[](https://codecov.io/gh/kitsuyui/cachepot)
[](https://opensource.org/licenses/BSD-3-Clause)
Yet another Python cache library. This has Python 3 typing hints.
## Installation
```
$ pip install cachepot
```
## Usage
```python
>>> from cachepot.store import CacheStore
>>> from cachepot.backend.filesystem import FileSystemCacheBackend
>>> from cachepot.serializer.pickle import PickleSerializer
>>> store = CacheStore(
... namespace='testing',
... key_serializer=PickleSerializer(),
... value_serializer=PickleSerializer(),
... backend=FileSystemCacheBackend('/tmp'),
... default_expire_seconds=3600,
... )
>>> store.put({'some': 'key'}, {'some': 'value'})
>>> store.get({'some': 'key'})
{'some': 'value'}
>>> store.put({'some': 'short expiring key'}, {'some': 'value'}, expire_seconds=10)
```
### Proxy method
```python
result = store.proxy(some_func)(some_args)
```
is the equivalent of
```python
result = store.get(some_arg)
if result is None:
result = some_func(some_args)
store.set(result)
```
In short, this works as proxy. This helps to make codes straight forward.
proxy method can be passed two arguments `cache_key` and `expire_seconds`.
## Core idea
Serializers convert python objects into bytes.
Backends save/load bytes.
So serializers and backends are independent.
CacheStore is the facade of them.
- Python3 typing supports
- namespaces
- Proxy method
## Features
### Serializers
- str ... [cachepot.serializer.str.StringSerializer](https://github.com/kitsuyui/cachepot/blob/master/cachepot/serializer/str.py)
- [pickle](https://docs.python.org/3/library/pickle.html) ... [cachepot.serializer.pickle.PickleSerializer](https://github.com/kitsuyui/cachepot/blob/master/cachepot/serializer/pickle.py)
- [JSON](https://tools.ietf.org/html/rfc8259) ... [cachepot.serializer.json.JSONSerializer](https://github.com/kitsuyui/cachepot/blob/master/cachepot/serializer/json.py)
And more serializers you can define.
### Backends
- Save to files ... [cachepot.backend.filesystem.FileSystemCacheBackend](https://github.com/kitsuyui/cachepot/blob/master/cachepot/backend/filesystem.py)
- Save to SQLite3 DB records ... [cachepot.backend.sqlite.SQLiteCacheBackend](https://github.com/kitsuyui/cachepot/blob/master/cachepot/backend/sqlite.py)
- Save to Redis DB ... [cachepot.backend.redis.RedisCacheBackend](https://github.com/kitsuyui/cachepot/blob/master/cachepot/backend/redis.py)
Of course you can define own backend.
## Development
You can install requirements with poetry.
```shell
$ poetry install
```
### Test
```shell
$ poetry poe check # lint and type check
$ poetry poe test # run tests
```
# LICENSE
The 3-Clause BSD License. See also LICENSE file.
Raw data
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"description": "# cachepot\n\n[](https://pypi.python.org/pypi/cachepot/)\n[](https://pypi.python.org/pypi/cachepot/)\n[](https://pypi.python.org/pypi/cachepot/)\n[](https://github.com/kitsuyui/cachepot/actions/workflows/python-test.yml)\n[](https://codecov.io/gh/kitsuyui/cachepot)\n[](https://opensource.org/licenses/BSD-3-Clause)\n\nYet another Python cache library. This has Python 3 typing hints.\n\n## Installation\n\n```\n$ pip install cachepot\n```\n\n## Usage\n\n```python\n>>> from cachepot.store import CacheStore\n>>> from cachepot.backend.filesystem import FileSystemCacheBackend\n>>> from cachepot.serializer.pickle import PickleSerializer\n>>> store = CacheStore(\n... namespace='testing',\n... key_serializer=PickleSerializer(),\n... value_serializer=PickleSerializer(),\n... backend=FileSystemCacheBackend('/tmp'),\n... default_expire_seconds=3600,\n... )\n>>> store.put({'some': 'key'}, {'some': 'value'})\n>>> store.get({'some': 'key'})\n{'some': 'value'}\n>>> store.put({'some': 'short expiring key'}, {'some': 'value'}, expire_seconds=10)\n```\n\n### Proxy method\n\n```python\nresult = store.proxy(some_func)(some_args)\n```\n\nis the equivalent of\n\n```python\nresult = store.get(some_arg)\nif result is None:\n result = some_func(some_args)\n store.set(result)\n```\n\nIn short, this works as proxy. This helps to make codes straight forward.\nproxy method can be passed two arguments `cache_key` and `expire_seconds`.\n\n## Core idea\n\nSerializers convert python objects into bytes.\nBackends save/load bytes.\nSo serializers and backends are independent.\nCacheStore is the facade of them.\n\n- Python3 typing supports\n- namespaces\n- Proxy method\n\n## Features\n\n### Serializers\n\n- str ... [cachepot.serializer.str.StringSerializer](https://github.com/kitsuyui/cachepot/blob/master/cachepot/serializer/str.py)\n- [pickle](https://docs.python.org/3/library/pickle.html) ... [cachepot.serializer.pickle.PickleSerializer](https://github.com/kitsuyui/cachepot/blob/master/cachepot/serializer/pickle.py)\n- [JSON](https://tools.ietf.org/html/rfc8259) ... [cachepot.serializer.json.JSONSerializer](https://github.com/kitsuyui/cachepot/blob/master/cachepot/serializer/json.py)\n\nAnd more serializers you can define.\n\n### Backends\n\n- Save to files ... [cachepot.backend.filesystem.FileSystemCacheBackend](https://github.com/kitsuyui/cachepot/blob/master/cachepot/backend/filesystem.py)\n- Save to SQLite3 DB records ... [cachepot.backend.sqlite.SQLiteCacheBackend](https://github.com/kitsuyui/cachepot/blob/master/cachepot/backend/sqlite.py)\n- Save to Redis DB ... [cachepot.backend.redis.RedisCacheBackend](https://github.com/kitsuyui/cachepot/blob/master/cachepot/backend/redis.py)\n\nOf course you can define own backend.\n\n## Development\n\nYou can install requirements with poetry.\n\n```shell\n$ poetry install\n```\n\n### Test\n\n```shell\n$ poetry poe check # lint and type check\n$ poetry poe test # run tests\n```\n\n# LICENSE\n\nThe 3-Clause BSD License. See also LICENSE file.\n",
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