During exam, your internet connection will be blocked. We have noticed that students who are using Mac OS have difficulties to launch Anaconda-Navigator. Below are some several solutions:

Solution 1

Wait for 15 to 20 mins. After that Anaconda-Navigator will be opened and you can launch Spyder. The reason is that Navigator is trying to access internet connection and make several retries that makes it very slow.

Solution 2

If you are impatient, you can do the following steps:
  1. Switch off your wifi. step1_switch_off_wifi.jpg
  2. Run Anaconda-Navigator. step2_run_navigator.jpg
  3. Launch Spyder. step3_launch_spyder.jpg
  4. Switch on your wifi again. step4_turnon_wifi.jpg

Solution 3

Launch Spyder directly from Terminal.
  1. Open Terminal.
  2. type: spyder
  3. press Enter to launch
If you have an error that says "ValueError unknown locale: UTF-8", please follow the steps in the link below:
https://conda.io/docs/troubleshooting.html#unknown-locale