Requirement already satisfied: six>=1.9.0 in ./anaconda3/lib/python3.6/site-packages (from prompt-toolkit<2.0.0,>=0.57->frida-tools) (1.11.0) Requirement already satisfied: wcwidth in ./anaconda3/lib/python3.6/site-packages (from prompt-toolkit<2.0.0,>=0.57->frida-tools) (0.1.7) distributed 1.21.8 requires msgpack, which is not installed. You are using pip version 10.0.1, however version 18.0 is available. You should consider upgrading via the 'pip install --upgrade pip' command. (luozheng) aaadeMacBook-Pro:~ aaa$ pip install --upgrade pip Collecting pip Downloading https://files.pythonhosted.org/packages/5f/25/e52d3f31441505a5f3af41213346e5b6c221c9e086a166f3703d2ddaf940/pip-18.0-py2.py3