Syntax for variable annotations requires python 3.6=>

[victorjof]

https://github.com/bblfsh/client-python/blob/cc9fbc4cd52948cd23dea806c88af6381f0c84ce/bblfsh/node.py#L161

[creachadair]

@dennwc It seems to me we could just make Python ≥ 3.6 a requirement. Since we require Python 3 anyway, there doesn't appear to be much advantage to the older editions. What do you think?

[dennwc]

I don't know that much about Python ecosystem, but it sounds reasonable.