Dependency update: prompt-toolkit

[metachris]

What current issue(s) does this address, or what feature is it adding?

Updated the code to work with the new version of prompt-toolkit, which in v2.x had a few breaking changes, in particular around the Style and the prompt function signature: https://github.com/jonathanslenders/python-prompt-toolkit/blob/master/CHANGELOG.

See also:

• https://github.com/jonathanslenders/python-prompt-toolkit/blob/deb7488b7b24814ae12518639a2fbe0b67c43ec3/examples/print-text/print-formatted-text.py
• https://github.com/jonathanslenders/python-prompt-toolkit/blob/deb7488b7b24814ae12518639a2fbe0b67c43ec3/examples/prompts/bottom-toolbar.py

How did you solve this problem?

Updating the code based on the prompt-toolkit examples.

The only thing I could not migrate was the bottom toolbar styling. It seems the new version doesn't allow foreground colors in the bottom toolbar anymore: https://github.com/CityOfZion/neo-python/blob/deps-prompt/neo/bin/prompt.py#L171

It looks like this now:

How did you make sure your solution works?

Manual tests

Are there any special changes in the code that we should be aware of?

No, except the changed bottom toolbar styling

Please check the following, if applicable:

• Did you add any tests?
• Did you run make lint?
• Did you run make test?
• Are you making a PR to a feature branch or development rather than master?
• Did you add an entry to CHANGELOG.rst? (if not, please do)

[localhuman]

Looks good! I'm ok with the different bottom toolbar styling-

[localhuman]

Actually, after playing around with this for a bit I'm noticing some odd things such as: <prompt_toolkit.styles.style.Style object at 0x10fc36f60> being printed after any command using FormattedText. Will revert for now