python version compatibilty

[indexofrefraction]

hi,
i tried this to minify code that needs to run on python 2.7 and python 3.7
sadly print() gets translated to print if minifying is run on 2.7 which breaks compatibilty
exec(...) gets minified to: exec ... also triggering errors on 3.x

it would be nice if there was a compatibilty mode not downgrading all code to 2.x standard
best, index

[dflook]

If you run python-minifier using python 3.7, the output will be compatible with 3.7
Do you have any problems running the 3.7 minified code on 2.7?

[indexofrefraction]

i'd have to test if 3.7 minified code works on 2.7, that would be a workaround.
but for me ideally minification would work from both python versions with results working on both versions, too.
hence the idea of a compat mode without syntax changes. (the code itself works on both versions)

[dflook]

Python-minifier relies on the running interpreter for parsing, so it won't have greater compat than python itself.
If there is any code that works on a lower version than it's being minified with but breaks after being minified, that might be worth a compatability mode.

On that note, did you from __future__ import print_function in the code where print() is transformed to print? That would be a bug

[rochacbruno]

Is 3.10 support on the roadmap?

[dflook]

@rochacbruno Yes. It's been implemented, but must be validated against the release version. If all goes well it will be released today 🤞.

[rochacbruno]

thanks @dflook I am bumping https://GitHub.com/rochacbruno/dynaconf to run CI on 3.10 and looks like the missing package is minify, we use it for our vendoring script.

Thanks

[dflook]

@rochacbruno python-minifier 2.5.0 is now available on PyPI with Python3.10 support

[rochacbruno]

Thanks @dflook now dynaconf install test on 3.10 is passing :)

https://github.com/rochacbruno/dynaconf/runs/3816321083?check_suite_focus=true