Mention scoping limitation for event loop fixtures #577
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The example for overriding event loop scopes now uses a module scope rather than a session scope. Due to the constraint that event_loop fixture scopes should not overlap, a session-scoped fixture is usually not that helpful. Addresses pytest-dev#531 Signed-off-by: Michael Seifert <m.seifert@digitalernachschub.de>
…nal possible cause. Closes pytest-dev#531 Signed-off-by: Michael Seifert <m.seifert@digitalernachschub.de>
…he docs. The headings no longer use the "pre-formatted" text style. Signed-off-by: Michael Seifert <m.seifert@digitalernachschub.de>
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The fixture reference does not mention the fact that the scopes of event_loop fixtures should not overlap. People may run into warnings and errors when they use overlapping scopes. (see #531)
This PR mentions the scoping limitation in the fixtures reference and extends the warning message for unclosed event loops to point users to a potential scoping issue.
Closes #531