Error - JSON object and module is not defined

[maintq]

I used exactly the code you provided:

from pypoloniex import LoadPairs
sess = LoadPairs()
LTC = sess.getPair(market = 'BTC', coin = 'LTC')
print LTC

And here is the error:

ValueError Traceback (most recent call last)
in ()
2
3 # Load realtime data from Poloniex
----> 4 sess = LoadPairs()
5
6 # Returns coin object

/Users/mba011/anaconda/lib/python2.7/site-packages/pypoloniex/LoadPairs.pyc in init(self)
48
49 def init(self):
---> 50 self.pairs = self.load()
51
52 def load(self):

/Users/mba011/anaconda/lib/python2.7/site-packages/pypoloniex/LoadPairs.pyc in load(self)
52 def load(self):
53 data = requests.get('https://poloniex.com/public?command=returnTicker')
---> 54 data = data.json()
55 pairs = {}
56 for pair in data:

/Users/mba011/anaconda/lib/python2.7/site-packages/requests/models.pyc in json(self, **kwargs)
890 # used.
891 pass
--> 892 return complexjson.loads(self.text, **kwargs)
893
894 @Property

/Users/mba011/anaconda/lib/python2.7/json/init.pyc in loads(s, encoding, cls, object_hook, parse_float, parse_int, parse_constant, object_pairs_hook, **kw)
337 parse_int is None and parse_float is None and
338 parse_constant is None and object_pairs_hook is None and not kw):
--> 339 return _default_decoder.decode(s)
340 if cls is None:
341 cls = JSONDecoder

/Users/mba011/anaconda/lib/python2.7/json/decoder.pyc in decode(self, s, _w)
362
363 """
--> 364 obj, end = self.raw_decode(s, idx=_w(s, 0).end())
365 end = _w(s, end).end()
366 if end != len(s):

/Users/mba011/anaconda/lib/python2.7/json/decoder.pyc in raw_decode(self, s, idx)
380 obj, end = self.scan_once(s, idx)
381 except StopIteration:
--> 382 raise ValueError("No JSON object could be decoded")
383 return obj, end

ValueError: No JSON object could be decoded

And when I used the other:
from pypoloniex import TimeSeries
sess = TimeSeries()
pair = ('BTC', 'LTC') # (market, coin)
period = 86400 # candle stick period in seconds
start = '4/2/2014' # dd/mm/year
end = '11/2/2014' # dd/mm/year
sess = getData(self,pair, period, start, end)
show(sess)

it returns another error:

NameError Traceback (most recent call last)
in ()
9
10 # Get time series data from Poloniex and load into pandas dataframe
---> 11 sess = getData(self,pair, period, start, end)
12
13 # Show dataframe with parameters

NameError: name 'getData' is not defined

Please help me. Thanks in advance