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"""Compute whether the link is valid.
This should only remain valid for a relatively short time.
Here, for the duration it is in cache.
"""
session = requests.Session()
for partner in self:
url = partner.static_map_url
if not url:
partner.static_map_url_is_valid = False
continue
is_valid = False
# If the response isn't strictly successful, assume invalid url
try:
res = session.get(url, timeout=2)
if res.ok and not res.headers.get('X-Staticmap-API-Warning'):
is_valid = True
except requests.exceptions.RequestException:
pass
partner.static_map_url_is_valid = is_valid
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