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Set up Locust on Windows

In this post, I will be taking you through end to end steps to set up Locust on windows. Further to that, I will be running a sample script & access Locust WebUI to verify the environment

Locust is a python code based performance testing tool. It's quick to start & powerful at doing scalable distributed load testing. By default, it comes with support for HTTP protocol. Being a python tool, it's highly flexible. and its power can be taken to great extent to enable a user to test protocols other than HTTP which include but not limited to FTP, Websocket, IoT protocols etc. It can also be integrated with a real-time monitoring solution like InfluxDB + Grafana to get customized metrics.


You can download & install Python from here. As per locust documentation, locust is supported on version 3.8.So we will go ahead & download the latest version

As the above video says, make sure that you get correct python version on giving the command

Also with python, pip comes bundled up.PIP is a utility which can help to install python packages available at PyPI. locustio is also available on PyPI.

Hence in the next step, we will be installing locustio using PIP.

Now once we are done with the installation of Python, we need to install locust using pip utility.

To install locustio on windows using PIP, give the command:

  • On giving below command, the appropriate output should be shown:

  • Make sure script folder inside python is in system path as locustio package resides in this folder. Else, locust command would not be identified at a command prompt

Troubleshooting Point

You might face issue such as below while installing on Windows:


Complete solution description is available at the link

  • Install or upgrade the Setuptools Python package. It contains compatibility improvements and adds automatic use of compilers:

pip install --upgrade setuptools
  • Microsoft Visual C++ compiler

Install Microsoft Visual C++ 14.2 standalone compiler: Build Tools for Visual Studio 2019.

You don't need to install Visual Studio 2019.

In Build tools, install C++ build tools and ensure the latest versions of MSVCv142 - VS 2019 C++ x64/x86 build tools and Windows 10 SDK is checked.

The setup tools Python package version must be at least 34.4.0.

Copy below script in notepad & name it as At this point don't bother about an understanding of the script

Open command prompt & go to the location of the script. Give a command to run a script

Once the script is run, locust UI can be accessed & performance test can be run from the same by defining a total number of users & linear ramp rate:

Create an integrated development environment for Locust using Pycharm

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