Issue #26770: set_inheritable() avoids calling fcntl() twice if the FD_CLOEXEC
is already set/cleared. This change only impacts platforms using the fcntl()
implementation of set_inheritable() (not Linux nor Windows).

messages.

Patch by Anthony Sottile.

Handle is probably meant to be excluded, and STARTUPINFO will be added to
__all__ in 3.6.

Patch by Aviv Palivoda.

Patch by Aviv Palivoda.

issue26775 - Improve test coverage for urllib.parse
Patch contributed by Luiz Poleto.

Patch contributed by Luiz Poleto.

* Disable inappropriate links to Python interpreter options
* Correct link to CLI section in zipapp
* Make CLI section label in timeit less ambiguous

enable link time optimizations at build time during a make profile-opt.

enable link time optimizations at build time during a make profile-opt.

builds.  multiprocessing and subprocess tests in particular
along with test_asyncore and test_gdb.  Running them does not
meaningfully add to the profile guidance.

builds.  multiprocessing and subprocess tests in particular
along with test_asyncore and test_gdb.  Running them does not
meaningfully add to the profile guidance.