address review comments

Author: prandla

cms/db/__init__.py

@@ -45,7 +45,6 @@
     "version", "engine",
     # session
     "Session", "ScopedSession", "SessionGen", "custom_psycopg2_connection",
-    "Session",
     # types
     "CastingArray", "Codename", "Filename", "FilenameSchema",
     "FilenameSchemaArray", "Digest",
@@ -89,7 +88,7 @@
 
 metadata = MetaData(engine)
 
-from .session import Session, Session, ScopedSession, SessionGen, \
+from .session import Session, ScopedSession, SessionGen, \
     custom_psycopg2_connection
 
 from .types import CastingArray, Codename, Filename, FilenameSchema, \

cms/server/contest/submission/file_retrieval.py

@@ -111,8 +111,7 @@ def extract_files_from_tornado(
     files look like they consist of just a compressed archive, extract
     it and return its contents instead.
 
-    tornado_files: a bunch of
-        files, in Tornado's format.
+    tornado_files: a bunch of files, in Tornado's format.
 
     return: the same bunch of files, in our format
         (except if it was an archive: then it's the archive's contents).

cms/util.py

@@ -302,8 +302,7 @@ def _get_shard_from_addresses(service: str, addrs: list[tuple[int, str]]) -> int
     specified addresses.
 
     service: the name of the service.
-    addrs: a list like the one returned by
-        find_local_addresses().
+    addrs: a list like the one returned by find_local_addresses().
 
     returns: the found shard, or None in case it doesn't exist.