* Allow underscores in numeric literals in lib2to3.
* Stricter literal parsing for Python 3.6 in lib2to3.pgen2.tokenize.
* Add test case for underscores in literals in Python 3.

Replace `For object's ... ` with `For objects ...`

And fix the parameter name.

Reported by Lucio Ricardo Montero Valenzuela.

multiple times.  Writing to closed zip entry writer object now always produce
a ValueError.

The data contained in them is nonsensical

contextlib._GeneratorContextManager.__exit__ includes a special case to deal with
PEP 479 RuntimeErrors created when `StopIteration` is thrown into the context
manager body.

Previously this check was too permissive, and undid one level of chaining on *all*
RuntimeError instances, not just those that wrapped a StopIteration instance.

The reference to administrative data was confusing to readers,
so this simplifies the note to explain that deep copying may copy
more then you intended, such as data that you expected to be
shared between copies.

conn.set_trace_callback() shouldn't be called multiple times when the
schema is changing.

This has indirectly been fixed by using sqlite3_prepare_v2() in bpo-9303.

The original attempted fix missed an `isdir()` call in
`get_base_branch()`.

Also changed format specifier for function name from "%s" to "%.200s"
and exception messages should start with lowercase letter.

Documents a few omitted classes and adds NamedTuple methods.

attributes.

object.__reduce__() no longer takes arguments, object.__reduce_ex__() now
requires one argument.

bpo-28837: Fix lib2to3 handling of map/zip/filter calls when followed with a 'trailer', e.g. zip()[x] (#24)

* Implement math.remainder.

* Fix markup for arguments; use double spaces after period.

* Mark up function reference in what's new entry.

* Add comment explaining the calculation in the final branch.

* Fix out-of-order entry in whatsnew.

* Add comment explaining why it's good enough to compare m with c, in spite of possible rounding error.

This hides unwanted implementation details from tracebacks.

* Updates B.index documentation.

* Updates str.index documentation, makes it Argument Clinic compatible.

* Removes ArgumentClinic code.

* Finishes string.index documentation.

* Updates string.rindex documentation.

* Documents B.rindex.