[Sqlalchemy-tickets] Issue #4115: 1.2.0b3 Regression (zzzeek/sqlalchemy)

[yoch <iss...@bi...>]

New issue 4115: 1.2.0b3 Regression
https://bitbucket.org/zzzeek/sqlalchemy/issues/4115/120b3-regression

yoch:

Hi, 

I use mariadb 10.2, and 1.2.0b2 worked well for me.
After upgrading to the new beta, I got the following error :


```
#!pycon

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "~/data_models.py", line 290, in <module>
    name_for_collection_relationship=name_for_collection_relationship)
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/ext/automap.py", line 754, in prepare
    autoload_replace=False
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/sql/schema.py", line 3895, in reflect
    with bind.connect() as conn:
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/engine/base.py", line 2102, in connect
    return self._connection_cls(self, **kwargs)
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/engine/base.py", line 90, in __init__
    if connection is not None else engine.raw_connection()
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/engine/base.py", line 2188, in raw_connection
    self.pool.unique_connection, _connection)
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/engine/base.py", line 2158, in _wrap_pool_connect
    return fn()
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/pool.py", line 344, in unique_connection
    return _ConnectionFairy._checkout(self)
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/pool.py", line 781, in _checkout
    fairy = _ConnectionRecord.checkout(pool)
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/pool.py", line 531, in checkout
    rec = pool._do_get()
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/pool.py", line 1185, in _do_get
    self._dec_overflow()
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/util/langhelpers.py", line 66, in __exit__
    compat.reraise(exc_type, exc_value, exc_tb)
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/util/compat.py", line 187, in reraise
    raise value
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/pool.py", line 1182, in _do_get
    return self._create_connection()
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/pool.py", line 349, in _create_connection
    return _ConnectionRecord(self)
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/pool.py", line 476, in __init__
    self.__connect(first_connect_check=True)
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/pool.py", line 676, in __connect
    exec_once(self.connection, self)
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/event/attr.py", line 246, in exec_once
    self(*args, **kw)
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/event/attr.py", line 256, in __call__
    fn(*args, **kw)
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/util/langhelpers.py", line 1334, in go
    return once_fn(*arg, **kw)
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/engine/strategies.py", line 182, in first_connect
    dialect.initialize(c)
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/dialects/mysql/base.py", line 1871, in initialize
    self._warn_for_known_db_issues()
  File "/usr/local/lib/python3.5/dist-packages/sqlalchemy/dialects/mysql/base.py", line 1876, in _warn_for_known_db_issues
    if mdb_version > (10, 2) and mdb_version < (10, 2, 9):
TypeError: unorderable types: str() > int()
```

Thanks