[issue3846] sqlite3 module: Improved concurrency

[Amaury Forgeot d'Arc]

Amaury Forgeot d'Arc <amauryfa at gmail.com> added the comment:

Your patch seems obvious, however:

- Is there the possibility that sqlite3_prepare() calls back into a
function in the _sqlite module or other python code? In this case the
GIL has to be re-acquired.

- What if another thread closes the current connection (or drop a table,
etc.) in-between? Is sqlite really thread-safe?

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nosy: +amaury.forgeotdarc

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