2 import urllib
.request
as urllib_request
3 import urllib
.error
as urllib_error
6 import urllib2
as urllib_request
7 import urllib2
as urllib_error
9 from ssl
import SSLError
11 from .api
import TwitterCall
, wrap_response
13 class TwitterJSONIter(object):
15 def __init__(self
, handle
, uri
, arg_data
, block
=True):
16 self
.decoder
= json
.JSONDecoder()
22 sock
= self
.handle
.fp
._sock
.fp
._sock
24 sock
.setblocking(False)
27 utf8_buf
= self
.buf
.decode('utf8').lstrip()
28 res
, ptr
= self
.decoder
.raw_decode(utf8_buf
)
29 self
.buf
= utf8_buf
[ptr
:].encode('utf8')
30 yield wrap_response(res
, self
.handle
.headers
)
32 except ValueError as e
:
37 except urllib_error
.HTTPError
as e
:
38 raise TwitterHTTPError(e
, uri
, self
.format
, arg_data
)
39 # this is a non-blocking read (ie, it will return if any data is available)
41 self
.buf
+= sock
.recv(1024)
43 if (not self
.block
) and (e
.errno
== 2):
44 # Apparently this means there was nothing in the socket buf
49 def handle_stream_response(req
, uri
, arg_data
, block
):
50 handle
= urllib_request
.urlopen(req
,)
51 return iter(TwitterJSONIter(handle
, uri
, arg_data
, block
))
53 class TwitterStreamCall(TwitterCall
):
54 def _handle_response(self
, req
, uri
, arg_data
):
55 return handle_stream_response(req
, uri
, arg_data
, block
=True)
57 class TwitterStreamCallNonBlocking(TwitterCall
):
58 def _handle_response(self
, req
, uri
, arg_data
):
59 return handle_stream_response(req
, uri
, arg_data
, block
=False)
61 class TwitterStream(TwitterStreamCall
):
63 Interface to the Twitter Stream API (stream.twitter.com). This can
64 be used pretty much the same as the Twitter class except the
65 result of calling a method will be an iterator that yields objects
66 decoded from the stream. For example::
68 twitter_stream = TwitterStream(auth=UserPassAuth('joe', 'joespassword'))
69 iterator = twitter_stream.statuses.sample()
71 for tweet in iterator:
72 ...do something with this tweet...
74 The iterator will yield tweets forever and ever (until the stream
75 breaks at which point it raises a TwitterHTTPError.)
77 The `block` parameter controls if the stream is blocking. Default
78 is blocking (True). When set to False, the iterator will
79 occasionally yield None when there is no available message.
82 self
, domain
="stream.twitter.com", secure
=True, auth
=None,
83 api_version
='1', block
=True):
85 uriparts
+= (str(api_version
),)
88 call_cls
= TwitterStreamCall
90 call_cls
= TwitterStreamCallNonBlocking
92 TwitterStreamCall
.__init
__(
93 self
, auth
=auth
, format
="json", domain
=domain
,
94 callable_cls
=call_cls
,
95 secure
=secure
, uriparts
=uriparts
)