1 files changed, 66 insertions, 0 deletions
diff --git a/lib/python2.7/Tools/scripts/checkpyc.py b/lib/python2.7/Tools/scripts/checkpyc.py
new file mode 100644
index 0000000..309a75c
--- /dev/null
+++ b/lib/python2.7/Tools/scripts/checkpyc.py
@@ -0,0 +1,66 @@
+#!/usr/bin/env python2
+# 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+                    print 'Out-of-date ".pyc" file',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()