New way of generating .pyc files, thanks to Sjoerd.

urllib.py: '+' is not always safe (even though the RFC says so :-( )
whrandom.py: throw away top bits of time to avoid overflow on Mac
(where times can be negative)

Lib/py_compile.py

@@ -0,0 +1,25 @@
+# Routine to "compile" a .py file to a .pyc file.
+# This has intimate knowledge of how Python/import.c does it.
+# By Sjoerd Mullender (I forced him to write it :-).
+
+MAGIC = 0x999903
+
+def wr_long(f, x):
+	f.write(chr( x        & 0xff))
+	f.write(chr((x >> 8)  & 0xff))
+	f.write(chr((x >> 16) & 0xff))
+	f.write(chr((x >> 24) & 0xff))
+
+def compile(file, cfile = None):
+	import os, marshal, __builtin__
+	f = open(file)
+	codestring = f.read()
+	timestamp = os.fstat(f.fileno())[8]
+	f.close()
+	codeobject = __builtin__.compile(codestring, file, 'exec')
+	if not cfile:
+		cfile = file + 'c'
+	fc = open(cfile, 'w')
+	wr_long(fc, MAGIC)
+	wr_long(fc, timestamp)
+	marshal.dump(codeobject, fc)