def close(self):
if self._response is not None:
self._response.close()
UserAgent.close(self)
del self._history[:]
self._forms = self._title = self._links = None
self.request = self._response = None
def _mech_open(self, url, data=None, update_history=True):
try:
url.get_full_url
except AttributeError:
# string URL -- convert to absolute URL if required
scheme, netloc = urlparse.urlparse(url)[:2]
if not scheme:
# relative URL
assert not netloc, "malformed URL"
if self._response is None:
raise BrowserStateError(
"can't fetch relative URL: not viewing any document")
url = urlparse.urljoin(self._response.geturl(), url)
if self.request is not None and update_history:
self._history.append((self.request, self._response))
self._response = None
# we want self.request to be assigned even if UserAgent.open fails
self.request = self._request(url, data)
self._previous_scheme = self.request.get_type()
self._response = UserAgent.open(self, self.request, data)
if not hasattr(self._response, "seek"):
self._response = response_seek_wrapper(self._response)
self._parse_html(self._response)
return self._response
def __init__(self, default_encoding="latin-1",
forms_factory=None,
links_factory=None,
request_class=None,
):
"""
Only named arguments should be passed to this constructor.
default_encoding: See class docs.
forms_factory: Object supporting the mechanize.FormsFactory interface.
links_factory: Object supporting the mechanize.LinksFactory interface.
request_class: Request class to use. Defaults to ClientCookie.Request
by default for Pythons older than 2.4, urllib2.Request otherwise.
Note that the supplied forms_factory's request_class attribute is
assigned to by this constructor, to ensure only one Request class is
used.
"""
self.default_encoding = default_encoding
self._history = [] # LIFO
self.request = self._response = None
self.form = None
self._forms = None
self._title = None
self._links = None
if request_class is None:
if not hasattr(urllib2.Request, "add_unredirected_header"):
request_class = ClientCookie.Request
else:
request_class = urllib2.Request # Python 2.4
self.request_class = request_class
if forms_factory is None:
forms_factory = FormsFactory()
self._forms_factory = forms_factory
forms_factory.request_class = request_class
if links_factory is None:
links_factory = LinksFactory()
self._links_factory = links_factory
UserAgent.__init__(self) # do this last to avoid __getattr__ problems
