It's not from IDLE,you run it from command line(cmd).
Microsoft Windows [Version 10.0.14393] (c) 2016 Microsoft Corporation. Med enerett. C:\Windows\System32>cd\ C:\>pip install fuzzywuzzy Collecting fuzzywuzzy Using cached fuzzywuzzy-0.15.0-py2.py3-none-any.whl Installing collected packages: fuzzywuzzy Successfully installed fuzzywuzzy-0.15.0 C:\>python Python 3.6.0 (v3.6.0:41df79263a11, Dec 23 2016, 07:18:10) [MSC v.1900 32 bit (Intel)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> import fuzzywuzzy >>> fuzzywuzzy.__version__ '0.15.0'