I know the –verbose or -v from several tools and I’d like to implement this into some of my own scripts and tools.
I thought of placing:
if verbose:
print …
through my source code, so that if a user passes the -v option, the variable verbose will be set to True and the text will be printed.
Is this the right approach or is there a more com….
Python’s standard library has modules for configuration file parsing (configparser), environment variable reading (os.environ), and command-line argument parsing (argparse). I want to write a program that does all those, and also:
Has a cascade of option values:
default option values, overridden by
config file options, overridden by
environment ….
How do I execute a bash command from Ipython/Jupyter notebook passing the value of a python variable as an argument like in this example:
py_var=”foo”
!grep py_var bar.txt
(obviously I want to grep for foo and not the literal string py_var)
….
parser.add_argument(‘-auto’, action=’store_true’)
How can I store false if -auto is unspecified? I can faintly remember that this way, it stores None if unspecified
….
This question already has answers here:
How to read/process command line arguments?
(21 answers)
Closed last month.
What’s the easiest, tersest, and most flexible method or library for parsing Python command line arguments?
….
How do I add an optional flag to my command line args?
eg. so I can write
python myprog.py
or
python myprog.py -w
I tried
parser.add_argument(‘-w’)
But I just get an error message saying
Usage [-w W]
error: argument -w: expected one argument
which I take it means that it wants an argument value for the -w option. What’s the way of just acc….
I use python to create my project settings setup, but I need help getting the command line arguments.
I tried this on the terminal:
$python myfile.py var1 var2 var3
In my Python file, I want to use all variables that are input.
….
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I would like to use argparse to parse boolean command-line arguments written as “–foo True” or “–foo False”. For example:
my_program –my_boolean_flag False
However, the following test code does not do what I would like:
import argparse
parser = argparse.ArgumentParser(description=”My parser”)
parser.add_argument(“–my_bool”, type=bool)
cmd_lin….