1 #! /usr/bin/env python 2 # Check that all ".pyc" files exist and are up-to-date 3 # Uses module 'os' 4 5 import sys 6 import os 7 from stat import ST_MTIME 8 import imp 9 10 def main(): 11 silent = 0 12 verbose = 0 13 if sys.argv[1:]: 14 if sys.argv[1] == '-v': 15 verbose = 1 16 elif sys.argv[1] == '-s': 17 silent = 1 18 MAGIC = imp.get_magic() 19 if not silent: 20 print 'Using MAGIC word', repr(MAGIC) 21 for dirname in sys.path: 22 try: 23 names = os.listdir(dirname) 24 except os.error: 25 print 'Cannot list directory', repr(dirname) 26 continue 27 if not silent: 28 print 'Checking ', repr(dirname), '...' 29 names.sort() 30 for name in names: 31 if name[-3:] == '.py': 32 name = os.path.join(dirname, name) 33 try: 34 st = os.stat(name) 35 except os.error: 36 print 'Cannot stat', repr(name) 37 continue 38 if verbose: 39 print 'Check', repr(name), '...' 40 name_c = name + 'c' 41 try: 42 f = open(name_c, 'r') 43 except IOError: 44 print 'Cannot open', repr(name_c) 45 continue 46 magic_str = f.read(4) 47 mtime_str = f.read(4) 48 f.close() 49 if magic_str <> MAGIC: 50 print 'Bad MAGIC word in ".pyc" file', 51 print repr(name_c) 52 continue 53 mtime = get_long(mtime_str) 54 if mtime == 0 or mtime == -1: 55 print 'Bad ".pyc" file', repr(name_c) 56 elif mtime <> st[ST_MTIME]: 57 print 'Out-of-date ".pyc" file', 58 print repr(name_c) 59 60 def get_long(s): 61 if len(s) <> 4: 62 return -1 63 return ord(s[0]) + (ord(s[1])<<8) + (ord(s[2])<<16) + (ord(s[3])<<24) 64 65 if __name__ == '__main__': 66 main() 67
