Formatting & rst link markup fixes
Fix grammar and add markup
Issue #20315: Removed support for backward compatibility with early 2.x versions.
Issue #20315: Removed support for backward compatibility with early 2.x versions.
Removed backward compatibility alias curses.window.nooutrefresh which should
be removed in 2.3.
Issue #20262: Warnings are raised now when duplicate names are added in the
ZIP file or too long ZIP file comment is truncated.
Issue #20262: Warnings are raised now when duplicate names are added in the
ZIP file or too long ZIP file comment is truncated.
Close #20275: Optimize BaseEventLoop._run_once()

Logger.log() is "slow", logger.isEnabledFor() is faster and the logger is
disabled in most cases. A microbenchmark executing 100,000 dummy tasks is 22%
faster with this change.
Issue #20311: select.epoll.poll() now rounds the timeout away from zero,
instead of rounding towards zero. For example, a timeout of one microsecond is
now rounded to one millisecond, instead of being rounded to zero.
(Merge 3.3) Issue #20311: select.epoll.poll() now rounds the timeout away from
zero, instead of rounding towards zero. For example, a timeout of one
microsecond is now rounded to one millisecond, instead of being rounded to
zero.
Issue #20311: selector.PollSelector.select() now rounds the timeout away from
zero, instead of rounding towards zero. For example, a timeout of one
microsecond is now rounded to one millisecond, instead of being rounded to
zero.

Move also a test in test_epoll which was moved by my previous merge.
Issue #20311: Try to fix the unit test, use time.monotonic() instead of
time.perf_counter()

Move also the unit test at the end.
(Merge 3.3) Issue #20311: Try to fix the unit test, use time.monotonic()
instead of time.perf_counter()
Fix the description of pickle protocol numbers
Issue #20222: file is no longer a builtin in 3.x.
Merge with 3.3
Issue #20122: Idlelib: Move tests in CallTips.py to test_calltips.py.
Merge with 3.3
Issue #16655: Explain why Idle's test_calltips has 'fragile' tests of builtins.
Issue #16655: Explain why Idle's test_calltips has 'fragile' tests of builtins.
Pending Clinic/inspect changes will probably require change to this file.
selectors: add a comment to explain why and how poll timeout is rounded