fix parsing bug

server/string_manipulation.py

@@ -0,0 +1,10 @@
+def comma_separated(s: str) -> str:
+    """ "
+    >>> comma_separated(',,,a b c,  def  , gh,,,א ב ג,,,,')
+    'a b c,def,gh,א ב ג'
+    """
+    values = s.strip().split(",")
+    values = map(str.strip, values)
+    values = filter(bool, values)
+    values = list(values)
+    return ",".join(values)

server/types.py

@@ -3,11 +3,12 @@
 from typing import TypedDict, TypeAlias, Annotated
 
 import httpx
-import pyparsing as pp
 from pydantic import BaseModel, AfterValidator, StringConstraints
 from sqlalchemy.ext.asyncio import async_sessionmaker, AsyncSession
 from starlette.authentication import BaseUser
 
+from server.string_manipulation import comma_separated
+
 
 class State(TypedDict):
     cf_http_client: httpx.AsyncClient
@@ -84,15 +85,6 @@ def NO_TOKEN(cls):
         return cls(success=False, error_codes=["no-token"], challenge_ts=None)
 
 
-def comma_separated(s: str) -> str:
-    parse_result = pp.common.comma_separated_list()("thelist").parse_string(
-        s, parse_all=True
-    )
-    values = parse_result.get("thelist")
-    values = list(filter(bool, values))
-    return ",".join(values)
-
-
 CommaSeparatedStr: TypeAlias = Annotated[
     str,
     AfterValidator(comma_separated),