Python coding

Hello, I am trying to do a python code. Using Windows, I got as far as the step that asks me to “copy the logistics.py file and save it in the same folder that you are running python from” (as displayed by the command prompt). Can you help direct me where to go to copy and save this “logistics.

argparse — adding a --version flag in the face of positional args

I have a script to which I'd like to add a --version flag. It should print the version number then exit, much in the same way --help prints the help text then exits. I haven't been able to figure that out. I always get a complaint about the required positional argument. I think I could use somethi

Re: Python coding

On 27Nov2022 16:47, Karen Park wrote: I am trying to do a python code. Using Windows, I got as far as the step that asks me to “copy the logistics.py file and save it in the same folder that you are running python from” (as displayed by the command prompt). Can you help direct me where to go t

Re: argparse — adding a --version flag in the face of positional args

I wondered whether subparsers might work, but they don't quite fit here. This seems to fit the bill fairly well, though I agree it would be nice if there were a neater option: import argparse import sys VERSION = 0.1 def main(args): parser.parse_args(args) class VersionAction(argparse.Act

Re: argparse — adding a --version flag in the face of positional args

> class VersionAction(argparse.Action): > def __call__(self, parser, namespace, values, option_string): > print(VERSION) > exit() ... > parser.add_argument("-v", "--version", nargs=0, action=VersionAction) Thanks. An action class didn't occur to me. I looked briefly at the code

Re: argparse — adding a --version flag in the face of positional args

On 11/27/22 16:40, Skip Montanaro wrote: I have a script to which I'd like to add a --version flag. It should print the version number then exit, much in the same way --help prints the help text then exits. I haven't been able to figure that out. I always get a complaint about the required positi

RE: Python coding

Create a folder anywhere convenient and copy it in there.Then - if python has been downloaded from the Python website and installed "normally" you can open a command prompt in that folder and type C:\\$>python logistics.py"normally" means Python is in your path environment variable.--(Unsigned

Re: Python coding

On Sun, 27 Nov 2022 16:47:29 -0600, Karen Park declaimed the following: >I am trying to do a python code. Using Windows, I got as far as the step that >asks me to “copy the logistics.py file and save it in the same folder that you >are running python from” (as displayed by the command prompt).

Re: argparse — adding a --version flag in the face of positional args

Use two parsers: import argparse import sys vparser = argparse.ArgumentParser(add_help=False) vparser.add_argument('--version',action="store_true",help="show version") # look for version, ignore remaining arguments vargs, _ = vparser.parse_known_args() if vargs.version: print("Version 2.0")

Re: argparse — adding a --version flag in the face of positional args

> > ummm, hate to say this, but have you checked the documentation? this > case is supported using an action named 'version' without doing very much. > Thanks, Mats. I actually searched all over the argparse docs. (There's a lot to digest. Honestly, if I wasn't attempting to be sort of up-to-dat

Re: argparse — adding a --version flag in the face of positional args

I figured it out…there was a logistics file given with the assignment! I thought it was supposed to be a download included with the python download…oops! Thanks, Karen > On Nov 27, 2022, at 9:34 PM, Skip Montanaro wrote: > >  >> >> >> ummm, hate to say this, but have you checked the docu