Issue #17670: Provide an example of expandtabs() usage.
Issue #17670: merge from 3.3
#15575: Clarify tutorial description of when modules are executed.
#15575: Clarify tutorial description of when modules are executed.
Issue #17795: Reverted backwards-incompatible change in SysLogHandler with Unix domain sockets.
Closes #17795: Reverted backwards-incompatible change in SysLogHandler with Unix domain sockets.
Issue #17736: fix misleading comment in _elementtree.c
Patch by Jonas Wagner
Issue #17736: fix misleading comment in _elementtree.c
Patch by Jonas Wagner
Simplify the code of get_attrib_from_keywords somewhat.