Python: LookupError: unknown encoding: cp0
I was able to work around this issue, but had to uninstall Miniconda and Python. I reinstalled Anaconda, launched Spyder from Anaconda-Navigator and its all working fine now. But I still don't understand the cause of this issue. It will be great if someone is able to explain.
I am trying to execute a simple nltk code: nltk.sent_tokenize(text) and am getting error LookupError: unknown encoding: cp0. I tried typing in chcp in my IPython Console and I am getting the same error. 
I am working on Windows10 desktop, executing Python code over Miniconda > Spyder IDE. I have Python 2.7 installed.