[Sqlalchemy-tickets] Issue #4273: UnboundLocalError in mssql/base.py:1925 (zzzeek/sqlalchemy)

[Umberto P. <iss...@bi...>]

New issue 4273: UnboundLocalError in mssql/base.py:1925
https://bitbucket.org/zzzeek/sqlalchemy/issues/4273/unboundlocalerror-in-mssql-basepy-1925

Umberto Prim:

In my call to `engine.raw_connection()` I have got this error:

```
#!python

File "D:\Anaconda\lib\site-packages\sqlalchemy\dialects\mssql\base.py", line 1925, in get_isolation_level
    "tried views: %s; final error was: %s" % (views, err))
UnboundLocalError: local variable 'err' referenced before assignment
```
Which looks like an easy fix.