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#! /usr/bin/python2.7
# Check that all ".pyc" files exist and are up-to-date
# Uses module 'os'
import sys
import os
from stat import ST_MTIME
import imp
def main():
silent = 0
verbose = 0
if sys.argv[1:]:
if sys.argv[1] == '-v':
verbose = 1
elif sys.argv[1] == '-s':
silent = 1
MAGIC = imp.get_magic()
if not silent:
print 'Using MAGIC word', repr(MAGIC)
for dirname in sys.path:
try:
names = os.listdir(dirname)
except os.error:
print 'Cannot list directory', repr(dirname)
continue
if not silent:
print 'Checking ', repr(dirname), '...'
names.sort()
for name in names:
if name[-3:] == '.py':
name = os.path.join(dirname, name)
try:
st = os.stat(name)
except os.error:
print 'Cannot stat', repr(name)
continue
if verbose:
print 'Check', repr(name), '...'
name_c = name + 'c'
try:
f = open(name_c, 'r')
except IOError:
print 'Cannot open', repr(name_c)
continue
magic_str = f.read(4)
mtime_str = f.read(4)
f.close()
if magic_str <> MAGIC:
print 'Bad MAGIC word in ".pyc" file',
print repr(name_c)
continue
mtime = get_long(mtime_str)
if mtime == 0 or mtime == -1:
print 'Bad ".pyc" file', repr(name_c)
elif mtime <> st[ST_MTIME]:
print 'Out-of-date ".pyc" file',
print repr(name_c)
def get_long(s):
if len(s) <> 4:
return -1
return ord(s[0]) + (ord(s[1])<<8) + (ord(s[2])<<16) + (ord(s[3])<<24)
if __name__ == '__main__':
main()