When I use this code below it does not change the price of Greek Valerian to price $3.48 as instructed. Here is what the output does.

And then the plant_catalog.xml stays exactly the same the price does not change. Please help me to get this code to run properly as instructions have instructed.

# import statements import xml.etree.ElementTree as ET import sys # Create an if-statement to check # the command line arguments. if len(sys.argv) = 100: print("The percentage change Range is invalid") print("The range must be -90  
Instructions are here:
 
 
  ES 8.50 PM 2/14/2021 0 X xmlparse  CG- a A2Y2A File Edit View Navigate Cole Relactor Run Iecils Ves Window Help python Project - xmlparse.py python Project Byxmlparse py Project  xmlparse A plant catalog.xml python Projecte Cuierastspycharmectasfitement : i import statements > veny library 101 2 import xml.etree. ElementTree us ET plant catalog.xml 13 import sys sexmlparse.py lille Extema Libraries 5 C# Creatu unif-statement to check Scratches and Consoles G# the comand line arguments. sit len(sys.argv)  veny library 101 2 import xml.etree. ElementTree us ET plant catalog.xml 13 import sys sexmlparse.py lille Extema Libraries 5 C# Creatu unif-statement to check Scratches and Consoles G# the comand line arguments. sit len(sys.argv)