wassname/catalyst
1
0
Fork 0
mirror of https://github.com/wassname/catalyst.git synced 2026-08-04 12:45:06 +08:00
Code Issues Packages Projects Releases Wiki Activity

download symbols.json when older than 1 day

Browse Source
This commit is contained in:
Victor Grau Serrat
2017-10-17 10:17:35 -06:00
parent 989ffc57f1
commit a4389ffea4
1 changed files with 3 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
catalyst/exchange/exchange_utils.py
+3 -2
View File
@@ -8,7 +8,7 @@ import pandas as pd
from catalyst.exchange.exchange_errors import ExchangeAuthNotFound, \
ExchangeSymbolsNotFound
from catalyst.utils.paths import data_root, ensure_directory
from catalyst.utils.paths import data_root, ensure_directory, last_modified_time
SYMBOLS_URL = 'https://s3.amazonaws.com/enigmaco/catalyst-exchanges/' \
'{exchange}/symbols.json'
@@ -40,7 +40,8 @@ def download_exchange_symbols(exchange_name, environ=None):
def get_exchange_symbols(exchange_name, environ=None):
filename = get_exchange_symbols_filename(exchange_name)
if not os.path.isfile(filename):
if not os.path.isfile(filename) or \
pd.Timedelta(pd.Timestamp('now', tz='UTC') - last_modified_time(filename)).days > 1:
download_exchange_symbols(exchange_name, environ)
if os.path.isfile(filename):