[PATCH] url.py: removed 'file' inheritance in the httpsendfile class
Renato Cunha
renatoc at gmail.com
Sat Aug 14 16:32:52 CDT 2010
# HG changeset patch
# User Renato Cunha <renatoc at gmail.com>
# Date 1281821482 10800
# Node ID 4c422aa7ec85f5fb896dcc848b9e2a1837c69065
# Parent 7fa36341e7a01a637f397673a11d09241cda8c7a
url.py: removed 'file' inheritance in the httpsendfile class
Since py3k doesn't have a "file" builtin and, consequently, doesn't support
inheriting from it, this patch refactors the httpsendfile class to wrap the
objects returned by the builtin "open" function while adding the necessary
methods (__len__ for constructing the Content-Length header and read, write,
close and seek for the file-like interface).
diff --git a/mercurial/url.py b/mercurial/url.py
--- a/mercurial/url.py
+++ b/mercurial/url.py
@@ -8,6 +8,7 @@
# GNU General Public License version 2 or any later version.
import urllib, urllib2, urlparse, httplib, os, re, socket, cStringIO
+import __builtin__
from i18n import _
import keepalive, util
@@ -250,9 +251,25 @@
return urllib2.ProxyHandler.proxy_open(self, req, proxy, type_)
-class httpsendfile(file):
+class httpsendfile(object):
+ """This is a wrapper around the objects returned by python's "open".
+
+ Its purpose is to send file-like objects via HTTP and, to do so, it
+ defines a __len__ attribute to feed the Content-Length header.
+ """
+
+ def __init__(self, *args, **kwargs):
+ # We can't just "self._data = open(*args, **kwargs)" here because there
+ # is an "open" function defined in this module that shadows the global
+ # one
+ self._data = __builtin__.open(*args, **kwargs)
+ self.read = self._data.read
+ self.seek = self._data.seek
+ self.close = self._data.close
+ self.write = self._data.write
+
def __len__(self):
- return os.fstat(self.fileno()).st_size
+ return os.fstat(self._data.fileno()).st_size
def _gen_sendfile(connection):
def _sendfile(self, data):
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