Intellisense parameter info is incorrectly formatted if declaration is too long

[jeffreykxiao]

Environment data

• VS Code version: 1.30.2
• Extension version (available under the Extensions sidebar): 2018.12.1
• OS and version: Windows 10 Pro
• Python version (& distribution if applicable, e.g. Anaconda): 3.6.8 64-bit
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): N/A
• Relevant/affected Python packages and their versions: N/A

Expected behaviour

Parameter info is correctly displayed

Actual behaviour

Too many parameters: incorrect display. Trailing params are parsed into docstring section. Putting extra parameters on newlines such that each line is under 70 characters doesn't help.

Function declaration is too long: incorrect display.

[karrtikr]

Can you please confirm if you are using language server, or jedi? (Check value of python.jediEnabled in settings.json).
Also, could you provide the code?

[jeffreykxiao]

Can't provide the code unfortunately, but disabling jedi solves the problem.

[danalf67]

I have exactly the same issue in the parameter hints. I use the jedi setting because the language server is worse (all line breaks are removed after the signature). Example source code for getting the error:
import shutil
shutil.copytree()

[karrtikr]

Dup of #5577