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Add asyncio support for all components #191

Merged
merged 2 commits into from Feb 19, 2020
Merged

Add asyncio support for all components #191

merged 2 commits into from Feb 19, 2020

Commits on Feb 13, 2020

  1. Add asyncio support for all components 

    In order to minimize the copy-paste between the async and sync
implementations, all of the non-base components are sym-linked to their
sync counterparts.  Since these import `AlphaVantage` locally, they
automatically pick up the async version, which is really nifty!

There was some refactoring in `SectorPerformance` to make the re-use
possible.

The async verison of AlphaVantage tries to re-use as much as possible
from the sync version.  The main differences are:
* a new `session` for the HTTP calls
* a new `close()` function which should be called when you're done
* `proxy` is a string instead of a dict

Using it:
```python
import asyncio
from alpha_vantage.async_support.timeseries import TimeSeries

async def get_data():
    ts = TimeSeries(key='YOUR_API_KEY')
    data, meta_data = await ts.get_intraday('GOOGL')
    await ts.close()

loop = asyncio.get_event_loop()
loop.run_until_complete(get_data())
loop.close()
```
    @joncinque
    joncinque committed Feb 13, 2020
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  2. Add asyncio packages to setup.py

    @joncinque
    joncinque committed Feb 13, 2020
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