[issue28729] Exception from sqlite3 adapter masked by sqlite3.InterfaceError

[Julien Palard]

Julien Palard added the comment:

I missed an occurrence of this "if/else" block, and by changing it, a lot of tests are failing, typically:

```======================================================================
ERROR: CheckBlob (sqlite3.test.types.SqliteTypeTests)
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Traceback (most recent call last):
  File "/home/mdk/cpython/Lib/sqlite3/test/types.py", line 72, in CheckBlob
    self.cur.execute("insert into test(b) values (?)", (val,))
sqlite3.InterfaceError: Problem in adapter

```

So this "if/else" giving back the unadapted parameter even when need_adapt is true is necessary, we'll have to understand why and how we can properly detect an adapter failure.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue28729>
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