Staging
v0.5.1
v0.5.1
https://github.com/python/cpython
Tip revision: 1da43e5e916949c8e849e656d9d05fa4b9d6836c authored by Benjamin Peterson on 26 June 2009, 13:21:52 UTC
rearrange the sections of the README, so they'll hopefully be more in the order people will interested in
rearrange the sections of the README, so they'll hopefully be more in the order people will interested in
Tip revision: 1da43e5
response.py
"""Response classes used by urllib.
The base class, addbase, defines a minimal file-like interface,
including read() and readline(). The typical response object is an
addinfourl instance, which defines an info() method that returns
headers and a geturl() method that returns the url.
"""
class addbase(object):
"""Base class for addinfo and addclosehook."""
# XXX Add a method to expose the timeout on the underlying socket?
def __init__(self, fp):
# TODO(jhylton): Is there a better way to delegate using io?
self.fp = fp
self.read = self.fp.read
self.readline = self.fp.readline
# TODO(jhylton): Make sure an object with readlines() is also iterable
if hasattr(self.fp, "readlines"):
self.readlines = self.fp.readlines
if hasattr(self.fp, "fileno"):
self.fileno = self.fp.fileno
else:
self.fileno = lambda: None
if hasattr(self.fp, "__iter__"):
self.__iter__ = self.fp.__iter__
if hasattr(self.fp, "__next__"):
self.__next__ = self.fp.__next__
def __repr__(self):
return '<%s at %r whose fp = %r>' % (self.__class__.__name__,
id(self), self.fp)
def close(self):
self.read = None
self.readline = None
self.readlines = None
self.fileno = None
if self.fp: self.fp.close()
self.fp = None
def __enter__(self):
if self.fp is None:
raise ValueError("I/O operation on closed file")
return self
def __exit__(self, type, value, traceback):
self.close()
class addclosehook(addbase):
"""Class to add a close hook to an open file."""
def __init__(self, fp, closehook, *hookargs):
addbase.__init__(self, fp)
self.closehook = closehook
self.hookargs = hookargs
def close(self):
addbase.close(self)
if self.closehook:
self.closehook(*self.hookargs)
self.closehook = None
self.hookargs = None
class addinfo(addbase):
"""class to add an info() method to an open file."""
def __init__(self, fp, headers):
addbase.__init__(self, fp)
self.headers = headers
def info(self):
return self.headers
class addinfourl(addbase):
"""class to add info() and geturl() methods to an open file."""
def __init__(self, fp, headers, url, code=None):
addbase.__init__(self, fp)
self.headers = headers
self.url = url
self.code = code
def info(self):
return self.headers
def getcode(self):
return self.code
def geturl(self):
return self.url