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Anyone @twitter got 2 minutes to answer some questions about your use of the Python ANTLR generator?

Most of these can be answered by grepping your codebase

Basically, do you set `antlr_version=` on any of your python_antlr_library targets?

I'm working on porting the python antlr support to a proper task, instead of the ancient builder thing we currently have

<@U051221NF> i saw only one `python_antlr_library`, and that doesn't set `antlr_version`

other antlr use cases are `java_antlr_library`, which uses both `antlr4` and `antlr3` but that's not what you are asking for

Does that python_antlr_library set `module=` ?

yea, like this ```python_antlr_library(
  module = 'antlrgen.twitter.thrift.descriptors',
  sources = globs('*.g'),
  dependencies = [
  ...
)```

And can you look inside those `.g` files and see what the python directives are at the top of the file?

<@U051221NF> those defined `@`?, saw python code inside `@header` `@init` `@members` `@after` `@rulecatch`

I don't remember what those look like, I'm looking for something that tells antlr where to emit the files, i.e., what the package structure should be.

not familiar with antlr, but looks like the one i am looking at is open-sourced :slightly_smiling_face: <https://github.com/twitter/commons/tree/master/src/antlr/twitter/thrift/descriptors>

<https://github.com/twitter/commons/blob/master/src/antlr/twitter/thrift/descriptors/AntlrThriftTreeWalker.g> mentioned `namespace` not sure if that's what you are looking for

<@U098ZNTCN> thanks for taking a stab at it. as near as I can tell nothing is logically missing. I'm wondering if one pants instance can read partial data from the pants cache that another instance is currently writing?

when I re-run the command it always works on the second try

and it's not always that file/class that comes up in the compiler error message, but it's always that class of error

the cache is definitely atomic, so i don't think it has anything to do with the cache

<@U0UKJ9R88> : can you sanitize and paste the output of ```$ ./pants options | grep zinc```

sure, one sec - need to do that inside jenkins

does square of 4square use `strict_deps`? <https://github.com/pantsbuild/pants/pull/4171> helps if `strict_deps` is enabled