Replace the generic exception class with a more specific one.

web/pgadmin/utils/driver/psycopg2/__init__.py

@@ -16,6 +16,7 @@ object.
 import datetime
 from flask import session
 from flask_login import current_user
+from werkzeug.exceptions import InternalServerError
 import psycopg2
 from psycopg2.extensions import adapt
 from threading import Lock
@@ -131,7 +132,7 @@ class Driver(BaseDriver):
         if _version:
             return _version
 
-        raise Exception(
+        raise InternalServerError(
             "Driver Version information for psycopg2 is not available!"
         )
 
@@ -143,7 +144,7 @@ class Driver(BaseDriver):
         if version:
             return version
 
-        raise Exception(
+        raise InternalServerError(
             "libpq version information is not available!"
         )
 

web/pgadmin/utils/driver/psycopg2/server_manager.py

@@ -16,6 +16,7 @@ import config
 from flask import current_app, session
 from flask_security import current_user
 from flask_babelex import gettext
+from werkzeug.exceptions import InternalServerError
 
 from pgadmin.utils import get_complete_file_path
 from pgadmin.utils.crypto import decrypt
@@ -38,6 +39,7 @@ class ServerManager(object):
     This class contains the information about the given server.
     And, acts as connection manager for that particular session.
     """
+    _INFORMATION_MSG = gettext("Information is not available.")
 
     def __init__(self, server):
         self.connections = dict()
@@ -158,17 +160,17 @@ class ServerManager(object):
     def major_version(self):
         if self.sversion is not None:
             return int(self.sversion / 10000)
-        raise Exception(gettext("Information is not available."))
+        raise InternalServerError(self._INFORMATION_MSG)
 
     def minor_version(self):
         if self.sversion:
             return int(int(self.sversion / 100) % 100)
-        raise Exception(gettext("Information is not available."))
+        raise InternalServerError(self._INFORMATION_MSG)
 
     def patch_version(self):
         if self.sversion:
             return int(int(self.sversion / 100) / 100)
-        raise Exception(gettext("Information is not available."))
+        raise InternalServerError(self._INFORMATION_MSG)
 
     def connection(
             self, database=None, conn_id=None, auto_reconnect=True, did=None,