Can't launch example on macOS
**Describe the bug**
After installing, I try to install examples, with no success

**Expected behavior**
Examples should be installed and ready to launch

**Screenshots**
My installations screenshots
<img width="981" alt="Capture d’écran 2020-04-03 à 23 04 18" src="https://user-images.githubusercontent.com/20369081/78404902-abf08b80-75ff-11ea-969e-7ee37cb3a996.png">

<img width="1071" alt="Capture d’écran 2020-04-03 à 23 04 41" src="https://user-images.githubusercontent.com/20369081/78404909-b1e66c80-75ff-11ea-89c9-4094ee209217.png">

My python version

<img width="601" alt="Capture d’écran 2020-04-03 à 23 07 13" src="https://user-images.githubusercontent.com/20369081/78405001-e35f3800-75ff-11ea-873a-12162f8055e7.png">


**Desktop (please complete the following information):**
 - OS: macOS 10.10.5

