delta/cpython-git.git, branch v3.9.0b1

Python 3.9.0b1

2020-05-18T23:07:09+00:00

bpo-40275: More lazy imports in test.support (GH-20131)

2020-05-18T22:02:57+00:00

Make the the following imports lazy in test.support:

* bz2
* gzip
* lzma
* resource
* zlib

The following test.support decorators now need to be called
with parenthesis:

* @support.requires_bz2
* @support.requires_gzip
* @support.requires_lzma
* @support.requires_zlib

For example, "@requires_zlib" becomes "@requires_zlib()".

Regenerate the parser (#20195)

2020-05-18T21:47:51+00:00

bpo-38870: Don't omit parenthesis when unparsing a slice in ast.unparse

2020-05-18T20:48:49+00:00

When unparsing a non-empty tuple, the parentheses can be safely
omitted if there aren't any elements that explicitly require them (such as starred expressions).

bpo-40334: Reproduce error message for type comments on bare '*' in the new parser (GH-20151)

2020-05-18T19:14:47+00:00

bpo-38870: correctly escape unprintable characters on ast.unparse (GH-20166)

2020-05-18T18:41:35+00:00

Unprintable characters such as `\x00` weren't correctly roundtripped
due to not using default string repr when generating docstrings. This
patch correctly encodes all unprintable characters (except `\n` and `\t`, which
are commonly used for formatting, and found unescaped).

Co-authored-by: Pablo Galindo 
Co-authored-by: Batuhan Taskaya

bpo-40669: Install PEG benchmarking dependencies in a venv (GH-20183)

2020-05-18T18:27:40+00:00

Create a `make venv` target, that creates a virtual environment
and installs the dependency in that venv. `make time` and all
the related targets are changed to use the virtual environment
python.

Automerge-Triggered-By: @pablogsal

bpo-40663: Correctly handle annotations with subscripts in ast_unparse.c (GH-20156)

2020-05-18T18:23:48+00:00

bpo-40662: Fixed ast.get_source_segment for ast nodes that have incomplete location information (GH-20157)

2020-05-18T18:14:12+00:00

Co-authored-by: Pablo Galindo

bpo-40528: Improve AST generation script to do builds simultaneously (GH-19968)

2020-05-18T17:42:10+00:00

- Switch from getopt to argparse.
- Removed the limitation of not being able to produce both C and H simultaneously.

This will make it run faster since it parses the asdl definition once and uses the generated tree to generate both the header and the C source.