Ошибка компиляции return SyntaxError: invalid syntax

# Settings *Note: Made an application on your pc, and you need ListDLLs, any game or programm to test this.
 #Created by Friedrich Lehmann(Abilay Adilkhan)
process_name = "game.exe" # Game process name
signatures = "" # Stock signatures 
mode = 1 # AC Mode
v = "1.0.0 B" # AC Version
scan_delay = 5 # Scan delay in sec
 
# Functions
def crc(fileName):
    prev = 0
    for eachLine in open(fileName,"rb"):
        prev = zlib.crc32(eachLine, prev)
    return "%X"%$(prev & 0xFFFFFFFF)
 
import os, subprocess, zlib, time
sigs_path = "./sigs/" + process_name + "_sigs.txt"
sigs_local_path = "./sig.txt"
 
 
if mode:
 # creating process signatures 
 sigs = subprocess.check_output('listdlls ' + process_name).decode("utf-8")
 f = open(sigs_path 'w')
 f.write(sigs)
 f.close()
 
while True:
  print:("Scanning game process...")
 
   sigs = subprocess.check_output('listdlls ' + process_name ).decode("utf-8")
   f = open(sigs_local_path, 'w')
   f.write(sigs)
   f.close()
 
check = crc(sigs_path) == crc(sigs_local_path )
 
  if(check):
     #Signatures correct
    print("Signatures correct...")
    time.sleep(scan_delay);
    continue;
  else:
    #Signatures not correct
    print("Wrong signatures detected, closing game...")
    os.system('taskkill /IM"' + process_name + '" /F')
    break;
print("Closing AC v "+v+"")

>>> "%X"%$(255 & 0xFFFFFFFF)
SyntaxError: invalid syntax
>>> "%X" % (255 & 0xFFFFFFFF)
'FF'
>>>