Problems installing on Mac 10.11.6

[colemast]

Hi

I have used locust before on OS 10.9 but I have just been trying to set up on 10.11.6 (El Capitan) and I am getting the error Illegal instruction: 4 whenever I try to run locust. This seems to be related to binaries being not compiled with the right compiler flags. I have reinstalled libevent after updating homebrew but this seemed to have no effect. Has anyone else encountered this problem?

[heyman]

Are you using an old virtualenv? If so, or if you're not using one at all, I would try with a fresh one to see if it helps.

[heyman]

Closing. Feel free to re-open.

[jaynakus]

Same here... upgraded virtualenv to the latest but no cure.

[heyman]

@jaynakus Did you create a whole new virtualenv and re-installed locust into it? It's not enough to just upgrade to the latest virtualenv version.

[hazelement]

same here. Running on EI Captain and brand new virtualenv with just locust...

Just to clarify this more.

After I run, locust --help, it prints out Illegal instruction: 4. And then a system dialog shows up and says Python quit unexpectedly.

[hazelement]

I seemed to figure it out. It's an issue with the python gevent library, see here https://github.com/gevent/gevent/issues/791 You need to install it separately before hand.

Current version of Locust seems to be using gevent 1.1.1, install it withpip install gevent==1.1.1 —no-binary :all:

Then install locust with pip install locustio. That should do it.