Delete all lines before a line that starts with a string

rm-lines-b4-string.py

found = 0
mystring = "Code"
with open("inputfile.txt", "r") as input: 
    with open("outputfile.txt", "w") as output: 
        for line in input:
            if line.startswith(mystring):
                found = 1
            if found == 0:
                pass
            else:
                output.write(line)