Incorrect indentation after string literals containing escaped characters

Steps to reproduce:

1. Type string with ‘\n’ in it, press Enter.

a = '\n'

Same for double quotes.

Expected behaviour

a = '\n'
<--- cursor should be here

Actual behaviour

a = '\n'
    <--- cursor is here

Environment data

• VS Code version: 1.30.2
• Extension version (available under the Extensions sidebar): 2019.1.0
• OS and version: Windows 10
• Python version (& distribution if applicable, e.g. Anaconda): 3.7
• Type of virtual environment used: N/A
• Relevant/affected Python packages and their versions: none

Logs

Console:

Starting Jedi Python language engine.

Linter 'pylint' is not installed. Please install it or select another linter".
Error: Module 'pylint' not installed.

[caudate-julie]

I am not familiar with the code, but it may be this string: https://github.com/Microsoft/vscode-python/blob/c23603c9b7a3dbb805e8339a2d7cf01bb7327b34/src/client/extension.ts#L176 since regex doesn’t include end of line.

[ericsnowcurrently]

I’ve verified that the following indent/dedent properly:

a = '\n'
# cursor here

a = 1 + \
    # cursor here