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handle null headers

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This commit is contained in:
stefano 2021-11-06 17:06:29 +01:00
parent 13d9a85055
commit 995aeb1ff0
1 changed files with 5 additions and 3 deletions
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8
freqtrade/plugins/pairlist/AnnouncementsPairList.py
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@ -8,6 +8,7 @@ Supported exchanges:
""" """
import random import random
import time
from abc import abstractmethod from abc import abstractmethod
from bs4 import BeautifulSoup from bs4 import BeautifulSoup
from cachetools import cached from cachetools import cached
@ -106,12 +107,13 @@ class BinanceAnnouncement(AnnouncementMixin):
raise TemporaryError(f"Binance url ({url}) is not available. Original Exception: {e}") raise TemporaryError(f"Binance url ({url}) is not available. Original Exception: {e}")
if not history: if not history:
while 'Age' in response.headers: while 'Age' in (response.headers or {}):
try: try:
url = self.get_api_url(random.randint(1, 100), page_size) url = self.get_api_url(random.randint(1, 100), page_size)
response = get(url, headers=headers) response = get(url, headers=headers)
except Exception: except Exception:
break break
time.sleep(0.5)
if response.status_code != 200: if response.status_code != 200:
raise TemporaryError(f"Invalid response from url: {url}.\n" raise TemporaryError(f"Invalid response from url: {url}.\n"
@ -120,8 +122,8 @@ class BinanceAnnouncement(AnnouncementMixin):
logger.info("Updating from Binance...") logger.info("Updating from Binance...")
updated_list = [] updated_list = []
articles = response.json()['data']['articles'] or []
for article in response.json()['data']['articles']: for article in articles:
article_link = self.get_announcement_url(article['code']) article_link = self.get_announcement_url(article['code'])
article_text = article['title'] article_text = article['title']