Environment details

• OS: macOS 10.14.5 (18F132) Mojave
• Python version: 3.7.3
• pip version: 19.1.1
• google-api-python-client version: 1.7.9

Steps to reproduce

Pre-steps:

• Have a full IPv6 stack with an IPv6 address. In my case, I have the following from Spectrum, through a Linksys WRT3200ACM router.

inet6 fe80::4ab:197d:b439:8d97%en0 prefixlen 64 secured scopeid 0x9 inet6 2604:6000:1013:a0eb:cca:87bb:d7ed:91b6 prefixlen 64 autoconf secured inet6 2604:6000:1013:a0eb:91e1:1128:7728:8e1 prefixlen 64 autoconf temporary 

Error:

1. Follow the steps for the Python Quickstart (https://developers.google.com/docs/api/quickstart/python)
2. run python quickstart.py
3. python exits with socket.timeout: timed out error

If I open System Preferences > Network > Wi-FI > Advanced > TCP/IP and change the IPv6 configuration from Automatically to Link-local only, the quickstart.py properly runs.