我使用pip3 install requests为request安装Python3
这是输出：
Collecting requests
Using cached requests-2.13.0-py2.py3-none-any.whl
Installing collected packages: requests
Successfully installed requests-2.13.0
但是当我尝试在requests中导入Python3时，错误抛出了
ImportError: No module named 'requests'
pip3 -V的输出：
pip 9.0.1 from /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages (python 3.5)
Python3 -V的输出：Python 3.5.1