* add "info" command to CLI
As a convenience, add the info directive to CLI. Running `python transformers-cli info` will return a string containing the transformers version, platform, python version, PT/TF version and GPU support
* Swap f-strings for .format
Still supporting 3.5 so can't use f-strings (sad face)
* Add reference in issue to CLI
* Add the expected fields to issue template
This way, people can still add the information manually if they want. (Though I fear they'll just ignore it.)
* Remove heading from output
* black-ify
* order of imports
Should ensure isort test passes
* use is_X_available over import..pass
* style
* fix copy-paste bug
* Rename command info -> env
Also adds the command to CONTRIBUTING.md in "Did you find a bug" section
Use -e only in docs targeted at contributors.
If a user copy-pastes command line with [--editable], they will hit
an error. If they don't know the --editable option, we're giving them
a choice to make before they can move forwards, but this isn't a choice
they need to make right now.
* Small clarification
Matches line 431 to line 435 for additional clarity and consistency.
* Fixed minor typo
The letter "s" was previously omitted from the word "docstrings".
