Support Python 3.8 to 3.10

Full Changelog: 0.6.3...0.7.0

Minor fixes and enhancements

Launching Paroxython on itself raised some corner-case errors. Fixed or improved:

• Don't calculate the index shape for non-nested indexes. Improve performance for index-heavy programs like compare_spans.py.
• Make dumped filenames clickable under VS code (more convenient).
• Don't version the results of paroxython applied to itself.
• Fix a misclassification of from . import foobar.
• Use a numeric suffix for feature variety instead of a sequence of stars.
• Ensure all one-liners have a whole_span feature. This includes programs whose flat ast contains only one "/_pos=", for instance:

  from . import foobar

• Prevent a potential parsing error on certain strings. These strings are those used in the flat AST, such as "/_pos=". Some regexes mistook them for the real thing.

Comprehensions and generator expressions

0.6.2

add taxa for comprehensions and generator expressions

Python 3.9 compatibility

0.6.1

prevent TravisCI from getting a 404 error for Python 3.9

Improve importation support

Main changes

• Support non-flat directory structure, as long as the import syntax is:

from a.b.c import d

• New documentation section.
• import is now a root in the default taxonomy.
• Internals: rename user type ProgramName (and derivative's) into ProgramPath.
• The key name for the --format option of paroxython recommend is now path.
• A new key name is added.

In other news

• The success, warning and error messages are now colorised (on certain terminals).
• New CLI error messages when referring to a non-existent file or directory.

Better API consistency

If you have built a tag database with the command:

paroxython collect DIRECTORY

... you can now get the recommendations with:

paroxython recommend DIRECTORY

Previously, it was necessary to provide the tag database explicitly, i.e.:

paroxython recommend DIRECTORY_db.json

0.5.2

Suppress sys.path injection during preprocessing cleanup.

0.5.1

• Actually delete labels scheduled for deletion even if they are derived. For instance, previously, the following double scheduling was only honored for adding pure_function, not for deleting impure_function:

def gray(n): # paroxython: -impure_function:gray... +pure_function:gray...
    if n <= 0:
        return [""]
    else:
        previous = gray(n - 1)
        return prefix_all(previous, "0") + prefix_all(reversed(previous), "1")  # paroxython: ...impure_function:gray ...pure_function:gray

• Fix paroxython collect default --skip argument.

Add support for Python 3.8 specifics

• Allow alternative results when testing spec.md examples (depending under which Python version Paroxython runs).
• Extend no_operation to Ellipsis syntax.
• Add assignment_expression feature.
• Correct the span of decorated functions and classes.
• Make flatten_ast.py to work with both typed-ast and ast library.
• Add a helper to compare the results of their respective parser.
• Upgrade the development environment to Python 3.8.

0.4.8

fix a problem with blank lines while building doc