InteractiveParser & Better Cache

[erezsh]

Cache

• Lark now tracks changes in imported grammars (%import), and updates the cache if necessary
• Added support for atomicwrites, for multiprocess caching and crash recovery

InteractiveParser

• Now an official interface (renamed from Puppet)
• Added Lark.parse_interactive() for starting the parser in interactive mode

Other

• Added ast_utils, to assist in tranforming lark.Tree into a customized AST.

• Better docs

• Bugfixes

Notification: Support for Python 2 is ending

In the near future, Lark will drop support for Python 2. We will continue to develop for Python 3.6+ only, which will simplify the code and ease development.

Old releases (including this one) will still work, of course, and should be stable enough to accompany the remaining Python 2 users into the sunset.

If you have any objections, feel free to voice them here: #874

Thanks for everyone who helped make Lark better!

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This discussion was created from the release InteractiveParser & Better Cache.

[ThatXliner]

Just asking, are the docs updated for ast_utils? The current site for the docs doesn't include the ast_utils example. Is it that the build for the documentation hasn't started or that readthedocs is super slow?

[erezsh]

It's just me who's super slow. It's there now: https://lark-parser.readthedocs.io/en/latest/classes.html#ast-utils

[ThatXliner]

It's just me who's super slow.

Oh. I do remember readthedocs having an option for automatically building it.

It's there now: https://lark-parser.readthedocs.io/en/latest/classes.html#ast-utils

Yay!

[ThatXliner]

Oh wait, nevermind

[erezsh]

Yep.. In my defense, documentation is boring.