This is regarding the page https://docs.python.org/3.7/library/sqlite3.html.

I believe this section on the very bottom of the page has been kept here for pretty long time, during that both SQLite and the sqlite3 module evolved and improved. Now the content contradicts to the description of function "connect()" in the part describing "check_same_thread" parameter. The function description says that using connections from multiple threads is allowed with serialization handled by the user (and it is true), while the bottom "Mutithreading" section says sharing connections is not allowed.

I think we can remove "Mutithreading" section entirely unless there is something important to add to what already mentioned.

That would be nice; someone needs to figure out what exact sqlite version allows safe passing of connection between threads. Ideally other caveats would be covered (is passing open cursors to another thread allowed?, etc...)

I see no point in researching the version of sqlite, since Python does not allow user to specify it, you just use the compiled version that comes with Python distribution.

10 years now to the commit that introduced that piece of text: https://github.com/python/cpython/commit/c34d76cdc3212615f9a3c2c4b1c542592372b5f8

Let's just remove it, what it says is simply not true.

May by I was wrong above and it uses system's Sqlite... But anyway it does not cancel the fact that this section contradicts to another one.

Also the footnote requires some minor corrections (formatting and style). I suggest the following wording:

To get loadable extension support, your Python must be compiled with ``-–enable-loadable-sqlite-extensions`` option in ``PYTHON_CONFIGURE_OPTS``.

I believe otherwise it is basically not clear what is said here.

New changeset f9949f82e17c88609adb53eff3a7d5cd63a645bd by Vladimir in branch 'master':
bpo-38413: Remove outdated section about multithreading in sqlite3 (GH-23159)
https://github.com/python/cpython/commit/f9949f82e17c88609adb53eff3a7d5cd63a645bd

New changeset 03a079f7cf8eacc29ea616060916e8a63ba6e5ba by Miss Islington (bot) in branch '3.8':
bpo-38413: Remove outdated section about multithreading in sqlite3 (GH-23159)
https://github.com/python/cpython/commit/03a079f7cf8eacc29ea616060916e8a63ba6e5ba

New changeset 49c150f1f16398a4e77e051244f27adc5ac7b47b by Vladimir in branch '3.9':
bpo-38413: Remove outdated section about multithreading in sqlite3 (GH-23159)
https://github.com/python/cpython/commit/49c150f1f16398a4e77e051244f27adc5ac7b47b