Try using pip3. It is used only for Python 3.
pip: If you are in a Python 3 venv then it will operate in the Python 3 environment. So if you are in a Python 2 venv it will operate in the Python 2 evironment.
pip3: Operates in the Python 3 environment
pip2: Operates in the Python 2 environment
As already stated in the comments you cannot install the turicreate library on a Raspberry Pi. The error message returned:
* macOS 10.12+ x86_64.
* Linux x86_64 (including WSL on Windows 10).
These are only operating systems compiled for the intel x86 processor or compatible AMD processors. But a Raspberry Pi uses a different ...