pd.to_pickle() and pd.read_pickle() bug? · Issue #11002 · pandas-dev/pandas (original) (raw)

I'm on windows 7, anaconda, python 2.7.9, 32bit
pandas 0.16.2

try this:

import pandas as pd df4 = pd.DataFrame(index=P.date_range('1750-1-1', '2050-1-1', freq='7D') pd.to_pickle(df4, '7d.test') pd.read_pickle('7d.test')

In [84]: P.read_pickle('7d.test')

ValueError Traceback (most recent call last) in () ----> 1 P.read_pickle('7d.test')

C:\Users\LV\Miniconda\lib\site-packages\pandas\io\pickle.pyc in read_pickle(path) 58 59 try: ---> 60 return try_read(path) 61 except: 62 if PY3:

C:\Users\LV\Miniconda\lib\site-packages\pandas\io\pickle.pyc in try_read(path, encoding) 55 except: 56 with open(path, 'rb') as fh: ---> 57 return pc.load(fh, encoding=encoding, compat=True) 58 59 try:

C:\Users\LV\Miniconda\lib\site-packages\pandas\compat\pickle_compat.pyc in load(fh, encoding, compat, is_verbose) 114 up.is_verbose = is_verbose 115 --> 116 return up.load() 117 except: 118 raise

C:\Users\LV\Miniconda\lib\pickle.pyc in load(self) 856 while 1: 857 key = read(1) --> 858 dispatchkey 859 except _Stop, stopinst: 860 return stopinst.value

C:\Users\LV\Miniconda\lib\site-packages\pandas\compat\pickle_compat.pyc in load_reduce(self) 18 19 try: ---> 20 stack[-1] = func(*args) 21 return 22 except Exception as e:

C:\Users\LV\Miniconda\lib\site-packages\pandas\tseries\index.pyc in _new_DatetimeIndex(cls, d) 113 # data are already in UTC 114 tz = d.pop('tz',None) --> 115 result = cls.new(cls, **d) 116 result.tz = tz 117 return result

C:\Users\LV\Miniconda\lib\site-packages\pandas\util\decorators.pyc in wrapper(*args, **kwargs) 86 else: 87 kwargs[new_arg_name] = new_arg_value ---> 88 return func(*args, **kwargs) 89 return wrapper 90 return _deprecate_kwarg

C:\Users\LV\Miniconda\lib\site-packages\pandas\tseries\index.pyc in new(cls, data, freq, start, end, periods, copy, name, tz, verify_integrity, normalize, closed, ambiguous, **kwargs) 334 if not np.array_equal(subarr.asi8, on_freq.asi8): 335 raise ValueError('Inferred frequency {0} from passed dates does not' --> 336 'conform to passed frequency {1}'.format(inferred, freq.freqstr)) 337 338 if freq_infer:

ValueError: Inferred frequency W-THU from passed dates does notconform to passed frequency 7D