revised by R. David Murray.

closefd was documented in the open docs but not the matching FileIO
class documented. Further, closefd, part of the core state for the
object was not shown.

In review it was noted that the open docs are a little confusing about
the interaction between closefd and paths, so tweaked them at the same
time.

Report and original fix by Vajrasky Kok.

Before, if a default was set on the parent parser, any default for that
variable set via set_defaults on a subparser would be ignored.  Now
the subparser set_defaults is honored.

Patch by Jyrki Pullianinen.

It is unlikely anyone is using the fact that the dictionary returned
by the 'params' attribute was previously writable, but even if someone
is the API is provisional so this kind of change is acceptable (and
needed, to get the API "right" before it becomes official).

Patch by Stéphane Wirtel.

Issue #22653: Fix an assertion failure in debug mode when doing a reentrant dict insertion in debug mode.

Issue #22653: Fix an assertion failure in debug mode when doing a reentrant dict insertion in debug mode.

It can still be enabled by instantiating a SSLContext manually.

htests to add # htest # marker for coveragepy and stop tcl errors.

Move test lines up with respect to icons.

a filename, pop up the Open Module box. If a module is opened, open a
corresponding browser.