title: running `print(sys.platform)` in the plain Python interpreter yielded a blank string
body: <p>Running <code>print(sys.platform)</code> in the plain Python interpreter yielded a blank string</p>
  
  <p>I try to configure the code of an open source python project on github..I installed the program with pip install and it worked perfectly. However, in order to make changes to the code I had to use the pip install -e command in order to enable editable installations. When I run the program this time it looked like my terminal didn’t interpreting ANSI color escape sequences, and that the detection that turns them off on Windows wasn’t working.</p>
  
  <p>I then run <code>print(sys.platform)</code> in the plain Python interpreter and I got back a blank string.
  Is there a way to fix this problem with the Python setup of my machine??
  I run windows 10 64bit and python 3.5</p>