Can't install locust on M1 Mac

[NitzanShifrin]

Error when installing locust - problem with gevent

Requirement already satisfied: pyzmq>=22.2.1 in /Users/nshifrin/Library/Python/3.8/lib/python/site-packages (from locust->-r BusLoadTest/requirements.txt (line 1)) (22.3.0)
Collecting gevent>=20.12.1
Using cached gevent-21.12.0.tar.gz (6.2 MB)
Installing build dependencies ... done
Getting requirements to build wheel ... done
Preparing metadata (pyproject.toml) ... error
error: subprocess-exited-with-error

× Preparing metadata (pyproject.toml) did not run successfully.
│ exit code: 1

ImportError: dlopen(/private/var/folders/yt/yzcjd_217bx_jqc12n70kt0m0000gn/T/pip-build-env-fi2yc_2l/overlay/lib/python3.8/site-packages/_cffi_backend.cpython-38-darwin.so, 0x0002): tried: '/private/var/folders/yt/yzcjd_217bx_jqc12n70kt0m0000gn/T/pip-build-env-fi2yc_2l/overlay/lib/python3.8/site-packages/_cffi_backend.cpython-38-darwin.so' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64e')), '/usr/local/lib/_cffi_backend.cpython-38-darwin.so' (no such file), '/usr/lib/_cffi_backend.cpython-38-darwin.so' (no such file)

Environment

• OS: Mac Monterey 12.2.1
• Python version: 3.8
• Locust version: latest and 2.8.3
• Locust command line that you ran: pip3 install locust

[cyberw]

Sounds like this ticket belongs in gevent instead of Locust (unfortunately I dont even have an Mx mac to test this on, so I wouldnt be of much help anyway)

[NitzanShifrin]

Sounds like this ticket belongs in gevent instead of Locust (unfortunately I dont even have an Mx mac to test this on, so I wouldnt be of much help anyway)

Hey thanks for reaching out.
There are plenty of tickets over gevent repo, thought you might have a 'hack' to go around it :(

[cyberw]

Maybe try using rosetta? https://stackoverflow.com/questions/70723757/arch-x86-64-and-arm64e-is-available-but-python3-is-saying-incompatible-architect

[cyberw]

Looks like a fix is on the way gevent/gevent#1721

[cyberw]

Is this still an issue with latest gevent?

[samuelspagl]

@NitzanShifrin I'm using Locust on my M1 Mac. But I am installing everything with pipenv instead of pip. Right know I am not running in any issues.

[NitzanShifrin]

hey @cyberw
Installation was completed, but when I try to run a test I get a similar error.

@samuelspagl thanks!
We are not using locust ATM, but if we ever need it again, I'll keep that in mind! thanks for answering!

[mgor]

Sorry for commenting on a stale issue, but I have confirmed that there's no (longer a) problem to install or run locust on an M1 mac, using the "Simple" example from https://locust.io and installed with pip.

➜ uname -a;  locust -f locustfile.py --headless --host http://example.com --run-time 1s; python3 -m pip freeze | grep -E '(locust|gevent)='; python3 --version
Darwin secret 21.6.0 Darwin Kernel Version 21.6.0: Mon Aug 22 20:20:05 PDT 2022; root:xnu-8020.140.49~2/RELEASE_ARM64_T8101 arm64
[2022-09-26 18:04:54,166] secret/INFO/locust.main: Run time limit set to 1 seconds
[2022-09-26 18:04:54,166] secret/INFO/locust.main: Starting Locust 2.12.1
Type     Name                                  # reqs      # fails |    Avg     Min     Max    Med |   req/s  failures/s
--------|------------------------------------|-------|-------------|-------|-------|-------|-------|--------|-----------
--------|------------------------------------|-------|-------------|-------|-------|-------|-------|--------|-----------
         Aggregated                                 0     0(0.00%) |      0       0       0      0 |    0.00        0.00

[2022-09-26 18:04:54,167] secret/INFO/locust.runners: Ramping to 1 users at a rate of 1.00 per second
[2022-09-26 18:04:54,167] secret/INFO/locust.runners: All users spawned: {"WebsiteUser": 1} (1 total users)
[2022-09-26 18:04:55,093] secret/INFO/locust.main: --run-time limit reached, shutting down
[2022-09-26 18:04:55,095] secret/INFO/locust.main: Shutting down (exit code 1)
Type     Name                                  # reqs      # fails |    Avg     Min     Max    Med |   req/s  failures/s
--------|------------------------------------|-------|-------------|-------|-------|-------|-------|--------|-----------
GET      /                                          1     0(0.00%) |    104     104     104    104 |    1.43        0.00
POST     /login                                     1   1(100.00%) |    407     407     407    407 |    1.43        1.43
GET      /static/assets.js                          1   1(100.00%) |    183     183     183    183 |    1.43        1.43
--------|------------------------------------|-------|-------------|-------|-------|-------|-------|--------|-----------
         Aggregated                                 3    2(66.67%) |    231     104     407    180 |    4.30        2.87

Response time percentiles (approximated)
Type     Name                                          50%    66%    75%    80%    90%    95%    98%    99%  99.9% 99.99%   100% # reqs
--------|----------------------------------------|--------|------|------|------|------|------|------|------|------|------|------|------
GET      /                                             100    100    100    100    100    100    100    100    100    100    100      1
POST     /login                                        410    410    410    410    410    410    410    410    410    410    410      1
GET      /static/assets.js                             180    180    180    180    180    180    180    180    180    180    180      1
--------|----------------------------------------|--------|------|------|------|------|------|------|------|------|------|------|------
         Aggregated                                    180    180    410    410    410    410    410    410    410    410    410      3

Error report
# occurrences      Error                                                                                               
------------------|-----------------------------------------------------------------------------------------------------
1                  POST /login: HTTPError('404 Client Error: Not Found for url: http://example.com/login')             
1                  GET /static/assets.js: HTTPError('404 Client Error: Not Found for url: http://example.com/static/assets.js')
------------------|-----------------------------------------------------------------------------------------------------
gevent==21.12.0
locust==2.12.1
Python 3.10.7

[cyberw]

Nice!

[github-actions]

This issue was closed because it has been stalled for 10 days with no activity. This does not necessarily mean that the issue is bad, but it most likely means that nobody is willing to take the time to fix it. If you have found Locust useful, then consider contributing a fix yourself!