xxxxxserverxxxxxx $ python prefect sample py Traceback most

Question

xxxxxserverxxxxxx $ python prefect sample py Traceback most recent call last File prefect sample py line 5 in lt module gt import prefect ImportError No module named prefect

Zanie · Answer

Hi Could you share the output of `pip version ` `python version` and `which prefect`

SK · Answer

pip3 version pip 9 0 3 from usr lib python3 7 site packages python 3 7 python3 version Python 3 7 9

SK · Answer

not decided yet about prefect server or cloud settign up fo rthe first time in AWS

Zanie · Answer

Could you run the command `which prefect`

Zanie · Answer

And `pip show prefect`

SK · Answer

ok checking

SK · Answer

This is what I see

SK · Answer

pip3 show prefect Name prefect Version 0 14 3 Summary The Prefect Core automation and scheduling engine Home page Author Prefect Technologies Inc Author email License Apache License 2 0 Location usr local lib python3 7 site packages Requires pyyaml tabulate marshmallow oneofschema cloudpickle msgpack dask pytz marshmallow urllib3 requests croniter distributed docker python slugify toml click pendulum mypy extensions python box importlib resources python dateutil

Zanie · Answer

So here you re referencing `pip3` and `python3` but in the to command you just used `python` to run your script

Zanie · Answer

The package looks to be installed just fine within python 3

SK · Answer

let me try python3

SK · Answer

Michael need some help

SK · Answer

prefect server start Exception caught killing services press ctrl C to force Traceback most recent call last File home ec2 user enviroment name lib python3 7 site packages prefect cli server py line 347 in start docker compose pull cwd=compose dir path env=env File usr lib64 python3 7 subprocess py line 358 in check call retcode = call popenargs kwargs File usr lib64 python3 7 subprocess py line 339 in call with Popen popenargs kwargs as p File usr lib64 python3 7 subprocess py line 800 in init restore signals start new session File usr lib64 python3 7 subprocess py line 1551 in execute child raise child exception type errno num err msg err filename FileNotFoundError Errno 2 No such file or directory docker compose docker compose During handling of the above exception another exception occurred Traceback most recent call last File home ec2 user enviroment name bin prefect line 11 in lt module gt sys exit cli File home ec2 user enviroment name lib python3 7 site packages click core py line 829 in call return self main args kwargs File home ec2 user enviroment name lib python3 7 site packages click core py line 782 in main rv = self invoke ctx File home ec2 user enviroment name lib python3 7 site packages click core py line 1259 in invoke return process result sub ctx command invoke sub ctx File home ec2 user enviroment name lib python3 7 site packages click core py line 1259 in invoke return process result sub ctx command invoke sub ctx File home ec2 user enviroment name lib python3 7 site packages click core py line 1066 in invoke return ctx invoke self callback ctx params File home ec2 user enviroment name lib python3 7 site packages click core py line 610 in invoke return callback args kwargs File home ec2 user enviroment name lib python3 7 site packages prefect cli server py line 385 in start docker compose down cwd=compose dir path env=env File usr lib64 python3 7 subprocess py line 411 in check output kwargs stdout File usr lib64 python3 7 subprocess py line 488 in run with Popen popenargs kwargs as process File usr lib64 python3 7 subprocess py line 800 in init restore signals start new session File usr lib64 python3 7 subprocess py line 1551 in execute child raise child exception type errno num err msg err filename FileNotFoundError Errno 2 No such file or directory docker compose docker compose

SK · Answer

gettign this error

Greg Roche · Answer

The error seems pretty clear to me `docker compose` couldn t be found on the system so it needs to be installed or at least be on the system path so that Prefect can interact with it FWIW the installation section of the docs does mention that both Docker and Docker Compose must be installed in order to run Prefect Server <https docs prefect io core getting started installation html running the local server and ui>

Zanie · Answer

I would highly recommend checking out Prefect Cloud first it s free and running Prefect Server is pretty complicated