====== Python Script for Plotting loggTeff Graph ======

This Python script uses argparse for command-line argument parsing and matplotlib for plotting. It's designed to generate a graph plotting 'logg' against 'teff' from data loaded from an '.iso' file. The script supports input file specification and an optional output path for saving the generated graph.

<code python>
from load import load
import matplotlib.pyplot as plt
import argparse



if __name__ == "__main__":
    parser = argparse.ArgumentParser(description="Generate a loggTeff Graph for testing")
    parser.add_argument("path", help="path to file", type=str)
    parser.add_argument("-o", "--output", help="path to save figure", type=str)

    args = parser.parse_args()

    assert ".iso" in args.path
    data, metadata = load(args.path)

    fig, ax = plt.subplots(1, 1, figsize=(10, 7))
    ax.plot(data['logg'], data['teff'])

</code>