To run an executable/script, simply use
./pants run on a
pex_binary target, like this:
$ ./pants run project/app.py
$ ./pants run project:app
You may only run one target at a time.
The program will have access to the same environment used by the parent
./pants process, so you can set environment variables in the external environment, e.g.
FOO=bar ./pants run project/app.py. (Pants will auto-set some values like
Tip: check the return code
Pants will propagate the return code from the underlying executable. Run
echo $?after the Pants run to see the return code.
Tip: Using the IntelliJ/PyCharm remote debugger
First, add the following target in some BUILD file (e.g., the one containing your other 3rd-party dependencies):
python_requirement_library( name = "pydevd-pycharm", requirements=["pydevd-pycharm==203.5419.8"], # Or whatever version you choose. )
You can check this into your repo, for convenience.
Now, use the remote debugger as usual:
Start a Python remote debugging session in PyCharm, say on port 5000.
Add the following code at the point where you want execution to pause and connect to the debugger:
import pydevd_pycharm pydevd_pycharm.settrace('localhost', port=5000, stdoutToServer=True, stderrToServer=True)
Run your executable with
./pants runas usual.
Note: The first time you do so you may see some extra dependency resolution work, as
pydevd-pycharmhas now been added to the binary's dependencies, via inference. If you have dependency inference turned off in your repo, you will have to manually add a temporary explicit dependency in your binary target on the
Issues finding files?
./pants dependencies --transitive path/to/binary.pyto ensure that all the files you need are showing up, including for any resources you intend to use.
To pass arguments to the script/executable, use
-- at the end of the command, like this:
$ ./pants run project/app.py -- --arg1 arg2 arg3
Updated 9 months ago