Steve Barnes wrote: > Currently invoking `python -c "some;separated;set of commands;"` will, > if you need to use any library functions, require one or more import > somelib; sections in the execution string. This results in rather > complex "one liners". > > On the other hand `python -m somelib` will load somelib and attempt to > execute its `__main__()` or give an error if there isn't one. > > What I would like to suggest is a mechanism to pre-load libraries before > evaluating the -c option as this would allow the use of code from > libraries that don't have a `__main__` function, or those that do but it > doesn't do what you want.
It would be really cool if you could somehow write a file with a bunch of commands in it, and then get Python to execute those commands. Then it could still be a one line invocation, but you could do much more complex things, including import a bunch of modules before executing some code. I'm not sure what such a file would look like but here's a strawman: ``` import os import sys import somelib path = somelib.get_path() parent = os.path.dirname(path) print(parent) sys.exit(0 if os.path.isdir(parent) else 1) ``` Then you could run it like so: $ python3 myscript.py That seems like a nice, compact, one line invocation, but cI don't know, it probably needs some fleshing out. It's just a crazy idea, and there's probably not enough time to implement this for Python 3.7. Maybe for Python 3.8. time-machine-winking-ly y'rs, -Barry _______________________________________________ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
