Locust安裝失敗：Running setup.py install for geventhttpclient ... error

最近想學習Locust性能測試，沒想到卡在了安裝上。
根據官方指導文檔，執行pip install locust，報錯信息如下所示：

Downloading MarkupSafe-1.1.1-cp36-cp36m-win32.whl (15 kB)
Using legacy setup.py install for ConfigArgParse, since package 'wheel' is not installed.
Using legacy setup.py install for geventhttpclient, since package 'wheel' is not installed.
Using legacy setup.py install for Flask-BasicAuth, since package 'wheel' is not installed.
Installing collected packages: ConfigArgParse, psutil, pyzmq, zope.interface, greenlet, pycparser, cffi, zope.event, gevent, msgpack, MarkupSafe, Jinja2, click, Werkzeug, itsdangerous, flask, geventhttpclient, Flask-BasicAuth, locust
    Running setup.py install for ConfigArgParse ... done
    Running setup.py install for geventhttpclient ... error
    ERROR: Command errored out with exit status 1:
     command: 'e:\program files (x86)\python3\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\DT-040~1\\AppData\\Local\\Temp\\pip-install-a47vuh1v\\geventhttpclient\\setup.py'"'"'; __file__='"'"'C:\\Users\\DT-040~1\\AppData\\Local\\Temp\\pip-install-a47vuh1v\\geventhttpclient\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\DT-040~1\AppData\Local\Temp\pip-record-md_9zmwq\install-record.txt' --single-version-externally-managed --compile --install-headers 'e:\program files (x86)\python3\Include\geventhttpclient'
         cwd: C:\Users\DT-040~1\AppData\Local\Temp\pip-install-a47vuh1v\geventhttpclient\
    Complete output (28 lines):
    running install
    running build
    running build_py
    creating build
    creating build\lib.win32-3.6
    creating build\lib.win32-3.6\geventhttpclient
    copying src\geventhttpclient\client.py -> build\lib.win32-3.6\geventhttpclient
    copying src\geventhttpclient\connectionpool.py -> build\lib.win32-3.6\geventhttpclient
    copying src\geventhttpclient\header.py -> build\lib.win32-3.6\geventhttpclient
    copying src\geventhttpclient\httplib.py -> build\lib.win32-3.6\geventhttpclient
    copying src\geventhttpclient\response.py -> build\lib.win32-3.6\geventhttpclient
    copying src\geventhttpclient\url.py -> build\lib.win32-3.6\geventhttpclient
    copying src\geventhttpclient\useragent.py -> build\lib.win32-3.6\geventhttpclient
    copying src\geventhttpclient\__init__.py -> build\lib.win32-3.6\geventhttpclient
    running egg_info
    writing src\geventhttpclient.egg-info\PKG-INFO
    writing dependency_links to src\geventhttpclient.egg-info\dependency_links.txt
    writing requirements to src\geventhttpclient.egg-info\requires.txt
    writing top-level names to src\geventhttpclient.egg-info\top_level.txt
    reading manifest file 'src\geventhttpclient.egg-info\SOURCES.txt'
    reading manifest template 'MANIFEST.in'
    warning: no previously-included files matching '__pycache__' found anywhere in distribution
    warning: no previously-included files matching '*.py[co]' found anywhere in distribution
    warning: no files found matching 'CHANGELOG'
    writing manifest file 'src\geventhttpclient.egg-info\SOURCES.txt'
    running build_ext
    building 'geventhttpclient._parser' extension
    error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": http://landinghub.visualstudio.com/visual-cpp-build-tools
    ----------------------------------------
ERROR: Command errored out with exit status 1: 'e:\program files (x86)\python3\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\DT-040~1\\AppData\\Local\\Temp\\pip-install-a47vuh1v\\geventhttpclient\\setup.py'"'"'; __file__='"'"'C:\\Users\\DT-040~1\\AppData\\Local\\Temp\\pip-install-a47vuh1v\\geventhttpclient\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\DT-040~1\AppData\Local\Temp\pip-record-md_9zmwq\install-record.txt' --single-version-externally-managed --compile --install-headers 'e:\program files (x86)\python3\Include\geventhttpclient' Check the logs for full command output.

解決方法，我認為有兩個：
一是、根據提示去安裝Microsoft Visual C++ 14.0，但是這個方法消耗的時間和空間都非常的高，大家可以量力而行；
第二種方法就是安裝最新（發布前）的locust，

pip install -U setuptools
pip install -U --pre locustio

安裝成功