do not parse cookies on DB requests

requests with Cookie headers set after Set-Cookie responses where being
rejected by DB gateway

pybikes/deutschebahn.py

@@ -38,6 +38,7 @@ def auth_headers(self):
 
     def update(self, scraper=None):
         scraper = scraper or PyBikesScraper()
+        scraper.parse_cookies = False
         scraper.headers.update(self.auth_headers)
         super(DB, self).update(scraper)
 

pybikes/utils.py

@@ -34,6 +34,7 @@ def __init__(
         session=None,
         requests_timeout=300,
         ssl_verification=True,
+        parse_cookies=True,
     ):
         self.headers = headers if isinstance(headers, dict) else {}
         self.headers.setdefault('User-Agent', user_agent)
@@ -92,8 +93,9 @@ def request(self, url, method='GET', params=None, data=None, raw=False,
         if raw:
             data = response.content
 
-        if 'set-cookie' in response.headers:
+        if self.parse_cookies and 'set-cookie' in response.headers:
             self.headers['Cookie'] = response.headers['set-cookie']
+
         self.last_request = response
 
         if self.cachedict is not None: