ES Modules require a full path (tarball problems)

[pygy]

It is nice that Flems is forgiving of missed extensions when importing, but when the code is downloaded, you get error messages about invalid MIME types that are not obvious to decipher.

It would probably be better to mandate the extensions in the sandbox as well.

[porsager]

Yeah, you're right.. That's a good idea

[pygy]

Note that TypeScript may be an exception here. At least at some point they used to recommend using extension-less imports. Not sure if it is still the case.