Environment data

• VS Code version: insider
• Extension version (available under the Extensions sidebar): master
• OS and version: Windows 10
• Python version (& distribution if applicable, e.g. Anaconda): CPython 3.6.5
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): venv
• Relevant/affected Python packages and their versions: pandas 0.22.0, numpy 1.14.2

Actual behavior

Expected behavior

Completions for pandas.

Because the lack of completions is so fast I don't know of this is us or Jedi.