There is no az command in virutalenv bin folder after run azdev setup on Ubuntu

[arrownj]

Environment: Ubuntu 18.04

Steps:

1. setup python3.6 virtual env

python3.6 -m venv py36 source py36/bin/activate

2. clone azure-cli

git clone <YOUR_REPO>

3. install azdev and setup

pip install azdev azdev setup -c

Expected: There should be a az command in py36/bin folder just as Windows/Mac do

Actual: No az command found