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Docstring tweaks

questrade_candles
Tyler Goodlet 2020-05-26 13:18:21 -04:00
parent ffd8bdac5f
commit a7f7de32b4
1 changed files with 7 additions and 5 deletions
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12
piker/brokers/data.py
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@ -90,7 +90,7 @@ async def stream_requests(
"""Stream requests for quotes for a set of symbols at the given """Stream requests for quotes for a set of symbols at the given
``rate`` (per second). ``rate`` (per second).
A stock-broker client ``get_quotes()`` async context manager must be A stock-broker client ``get_quotes()`` async function must be
provided which returns an async quote retrieval function. provided which returns an async quote retrieval function.
""" """
broker_limit = getattr(feed.mod, '_rate_limit', float('inf')) broker_limit = getattr(feed.mod, '_rate_limit', float('inf'))
@ -268,7 +268,7 @@ async def start_quote_stream(
Spawns new quoter tasks for each broker backend on-demand. Spawns new quoter tasks for each broker backend on-demand.
Since most brokers seems to support batch quote requests we Since most brokers seems to support batch quote requests we
limit to one task per process for now. limit to one task per process (for now).
""" """
# XXX: why do we need this again? # XXX: why do we need this again?
get_console_log(tractor.current_actor().loglevel) get_console_log(tractor.current_actor().loglevel)
@ -313,7 +313,7 @@ async def start_quote_stream(
await stream_requests( await stream_requests(
# pub required kwargs # ``msg.pub`` required kwargs
task_name=feed_type, task_name=feed_type,
ctx=ctx, ctx=ctx,
topics=symbols, topics=symbols,
@ -358,7 +358,7 @@ class DataFeed:
feed_type: str, feed_type: str,
rate: int = 1, rate: int = 1,
diff_cached: bool = True, diff_cached: bool = True,
test: bool = None, test: str = '',
) -> (AsyncGenerator, dict): ) -> (AsyncGenerator, dict):
if feed_type not in self._allowed: if feed_type not in self._allowed:
raise ValueError(f"Only feed types {self._allowed} are supported") raise ValueError(f"Only feed types {self._allowed} are supported")
@ -416,6 +416,8 @@ class DataFeed:
raise raise
def format_quotes(self, quotes, symbol_data={}): def format_quotes(self, quotes, symbol_data={}):
"""Format ``quotes`` using broker defined formatter.
"""
self._symbol_data_cache.update(symbol_data) self._symbol_data_cache.update(symbol_data)
formatter = getattr(self.brokermod, f'format_{self._quote_type}_quote') formatter = getattr(self.brokermod, f'format_{self._quote_type}_quote')
records, displayables = zip(*[ records, displayables = zip(*[
@ -449,7 +451,7 @@ async def stream_to_file(
# an async generator instance # an async generator instance
agen = await portal.run( agen = await portal.run(
"piker.brokers.data", 'start_quote_stream', "piker.brokers.data", 'start_quote_stream',
broker=brokermod.name, tickers=tickers) broker=brokermod.name, symbols=tickers)
fname = filename or f'{watchlist_name}.jsonstream' fname = filename or f'{watchlist_name}.jsonstream'
with open(fname, 'a') as f: with open(fname, 'a') as f: