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data/history cleanup

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This commit is contained in:
hroff-1902
2019-05-17 19:05:36 +03:00
parent e0310906c7
commit e2b83624a3
2 changed files with 44 additions and 23 deletions
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38
freqtrade/data/history.py
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@@ -90,13 +90,8 @@ def load_pair_history(pair: str,
:return: DataFrame with ohlcv data
"""
# If the user force the refresh of pairs
# The user forced the refresh of pairs
if refresh_pairs:
if not exchange:
raise OperationalException("Exchange needs to be initialized when "
"calling load_data with refresh_pairs=True")
logger.info('Download data for pair and store them in %s', datadir)
download_pair_history(datadir=datadir,
exchange=exchange,
pair=pair,
@@ -115,10 +110,11 @@ def load_pair_history(pair: str,
arrow.get(pairdata[-1][0] // 1000).strftime('%Y-%m-%d %H:%M:%S'))
return parse_ticker_dataframe(pairdata, ticker_interval, fill_up_missing)
else:
logger.warning('No data for pair: "%s", Interval: %s. '
'Use --refresh-pairs-cached option or download_backtest_data.py '
'script to download the data',
pair, ticker_interval)
logger.warning(
f'No history data for pair: "{pair}", interval: {ticker_interval}. '
'Use --refresh-pairs-cached option or download_backtest_data.py '
'script to download the data'
)
return None
@@ -190,7 +186,7 @@ def load_cached_data_for_updating(filename: Path, ticker_interval: str,
def download_pair_history(datadir: Optional[Path],
exchange: Exchange,
exchange: Optional[Exchange],
pair: str,
ticker_interval: str = '5m',
timerange: Optional[TimeRange] = None) -> bool:
@@ -201,18 +197,26 @@ def download_pair_history(datadir: Optional[Path],
the full data will be redownloaded
Based on @Rybolov work: https://github.com/rybolov/freqtrade-data
:param pair: pair to download
:param ticker_interval: ticker interval
:param timerange: range of time to download
:return: bool with success state
"""
if not exchange:
raise OperationalException(
"Exchange needs to be initialized when downloading pair history data"
)
try:
path = make_testdata_path(datadir)
filepair = pair.replace("/", "_")
filename = path.joinpath(f'{filepair}-{ticker_interval}.json')
logger.info('Download the pair: "%s", Interval: %s', pair, ticker_interval)
logger.info(
f'Download history data for pair: "{pair}", interval: {ticker_interval} '
f'and store in {datadir}.'
)
data, since_ms = load_cached_data_for_updating(filename, ticker_interval, timerange)
@@ -231,7 +235,9 @@ def download_pair_history(datadir: Optional[Path],
misc.file_dump_json(filename, data)
return True
except BaseException:
logger.info('Failed to download the pair: "%s", Interval: %s',
pair, ticker_interval)
except Exception:
logger.error(
f'Failed to download history data for pair: "{pair}", interval: {ticker_interval}.'
)
return False