eDAP: Another fix attempt

psf/requests#239 (comment)

edap/app/api_backend.py

@@ -1032,7 +1032,6 @@ class ID that will be "expanded" (add grades, exams, etc.)
 		class_obj['info'] = None
 	# Mark it as full/expanded
 	class_obj['full'] = True
-	obj.close()
 	return class_obj
 
 def verify_dev_request(token: str) -> bool:

edap/app/edap.py

@@ -157,7 +157,8 @@ def __fetch(self, url: str) -> str:
 		try:
 			o = self.session.get(url)
 			o.raise_for_status()
-			return o.text
+			data = o.content.decode('utf-8')
+			return data
 		except (requests.exceptions.HTTPError, requests.exceptions.Timeout):
 			raise NetworkError(url)
 
@@ -610,11 +611,3 @@ def getAbsenceList(self, class_id: int) -> List[dict]:
 		self.__edlog(0, "Decomposing tree")
 		soup.decompose()
 		return abslist2
-
-	def close(self):
-		# Test method
-		self.session.close()
-		self.class_ids = []
-		self.subject_ids = []
-		self.subject_cache = {}
-		self.absence_cache = {}