I installed Python 3.4 on my Windows 7 laptop several months ago as part of Anaconda (https://www.continuum.io/downloads). My installation included the Spyder IDE, and I hav
Had the same exact problem as you a few days ago and reinstalling won't work so I went to:
C:\Users\'YourName'\\.spyder2-py3
delete every spyder, lock file/folder in it and relaunch.