Witchy cat hatPycharm can't change interpreter from python 2.7 to 3.4 . setuptools, know in advance the wheel filename of a native library ... [Errno 99] Cannot assign requested address . Aggregate, Transpose, and pull in value in Pandas Dataframe . Python pip find out basic requirements from output of pip freeze . The Kernel appears to have died. Always ...Clostilbegyt retras de pe piataException in thread "main" java.net.BindException: Can't assign requested address: Service 'sparkDriver' failed after 16 retries! 이렇게 뜨는데.