venv activation has 1 second delay

[jonashaag]

Environment data

• VS Code version: 1.31.0 7c66f58312b48ed8ca4e387ebd9ffe9605332caa
• Extension version: 2019.1.0
• OS and version: macOS 10.14.1
• Python version: 3.7
• Type of virtual environment used: venv
• Relevant/affected Python packages and their versions: none

Expected behaviour

source command has no delay.

Actual behaviour

source command has 1 second delay. See demo video: https://imgur.com/a/YJIX6sC

Steps to reproduce:

Open terminal.

Logs

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)

Nothing

Output from Console under the Developer Tools panel (toggle Developer Tools on under Help; turn on source maps to make any tracebacks be useful by running Enable source map support for extension debugging)

(3x) [Extension Host] Python Extension: Cached data exists getEnvironmentVariables, /Users/j/dev/cl/cashlink/cl-backend

[d3r3kk]

This delay is introduced when we send information to the VS Code terminal provider.

[d3r3kk]

Issue moved to Microsoft/vscode #68157 via ZenHub

[DonJayamanne]

@d3r3kk
Why did we file an issue upstream to VSC?

[Tyriar]

Good question 😄 @DonJayamanne I'm guessing this is related to microsoft/vscode#67693?