import xml.etree.ElementTree as ET
import sys

try:
    tree = ET.parse('dialogalgoarg.ui')
    print('XML is valid!')
    root = tree.getroot()
    print(f'Root tag: {root.tag}')
except ET.ParseError as e:
    print(f'XML Parse Error at line {e.position[0]}, column {e.position[1]}: {e}')
except Exception as e:
    print(f'Error: {e}')