[Sqlalchemy-tickets] Issue #4170: URL w/ repeated params (zzzeek/sqlalchemy)

[Michael B. <iss...@bi...>]

New issue 4170: URL w/ repeated params
https://bitbucket.org/zzzeek/sqlalchemy/issues/4170/url-w-repeated-params

Michael Bayer:

bug number one:


```
#!python

>>> from sqlalchemy.engine import url
>>> u = url.make_url("mysql://s:p@host/db?plugin=foo&plugin=bar")
>>> u.query
{'plugin': 'bar'}

```

that's a big deal.   the plugin system didn't assume this was the case.

then, of course, 


```
#!python

>>> u.query['plugin'] = ['foo', 'bar']
>>> str(u)
"mysql://s:p@host/db?plugin=['foo', 'bar']"

```