Merged revisions 56125-56153 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/p3yk

........
  r56127 | georg.brandl | 2007-06-30 09:32:49 +0200 (Sat, 30 Jun 2007) | 2 lines

  Fix a place where floor division would be in order.
........
  r56135 | guido.van.rossum | 2007-07-01 06:13:54 +0200 (Sun, 01 Jul 2007) | 28 lines

  Make map() and filter() identical to itertools.imap() and .ifilter(),
  respectively.

  I fixed two bootstrap issues, due to the dynamic import of itertools:

  1. Starting python requires that map() and filter() are not used until
     site.py has added build/lib.<arch> to sys.path.
  2. Building python requires that setup.py and distutils and everything
     they use is free of map() and filter() calls.

  Beyond this, I only fixed the tests in test_builtin.py.
  Others, please help fixing the remaining tests that are now broken!
  The fixes are usually simple:
  a. map(None, X) -> list(X)
  b. map(F, X) -> list(map(F, X))
  c. map(lambda x: F(x), X) -> [F(x) for x in X]
  d. filter(F, X) -> list(filter(F, X))
  e. filter(lambda x: P(x), X) -> [x for x in X if P(x)]

  Someone, please also contribute a fixer for 2to3 to do this.
  It can leave map()/filter() calls alone that are already
  inside a list() or sorted() call or for-loop.

  Only in rare cases have I seen code that depends on map() of lists
  of different lengths going to the end of the longest, or on filter()
  of a string or tuple returning an object of the same type; these
  will need more thought to fix.
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  r56136 | guido.van.rossum | 2007-07-01 06:22:01 +0200 (Sun, 01 Jul 2007) | 3 lines

  Make it so that test_decimal fails instead of hangs, to help automated
  test runners.
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  r56139 | georg.brandl | 2007-07-01 18:20:58 +0200 (Sun, 01 Jul 2007) | 2 lines

  Fix a few test cases after the map->imap change.
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  r56142 | neal.norwitz | 2007-07-02 06:38:12 +0200 (Mon, 02 Jul 2007) | 1 line

  Get a bunch more tests passing after converting map/filter to return iterators.
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  r56147 | guido.van.rossum | 2007-07-02 15:32:02 +0200 (Mon, 02 Jul 2007) | 4 lines

  Fix the remaining failing unit tests (at least on OSX).
  Also tweaked urllib2 so it doesn't raise socket.gaierror when
  all network interfaces are turned off.
........
diff --git a/Lib/urllib2.py b/Lib/urllib2.py
index 4ae7df4..f15da21 100644
--- a/Lib/urllib2.py
+++ b/Lib/urllib2.py
@@ -1222,7 +1222,7 @@
             if host:
                 host, port = splitport(host)
             if not host or \
-                (not port and socket.gethostbyname(host) in self.get_names()):
+                (not port and _safe_gethostbyname(host) in self.get_names()):
                 return addinfourl(open(localfile, 'rb'),
                                   headers, 'file:'+file)
         except OSError as msg:
@@ -1230,6 +1230,12 @@
             raise URLError(msg)
         raise URLError('file not on local host')
 
+def _safe_gethostbyname(host):
+    try:
+        return socket.gethostbyname(host)
+    except socket.gaierror:
+        return None
+
 class FTPHandler(BaseHandler):
     def ftp_open(self, req):
         import ftplib
@@ -1259,7 +1265,7 @@
             raise URLError(msg)
         path, attrs = splitattr(req.get_selector())
         dirs = path.split('/')
-        dirs = map(unquote, dirs)
+        dirs = list(map(unquote, dirs))
         dirs, file = dirs[:-1], dirs[-1]
         if dirs and not dirs[0]:
             dirs = dirs[1:]