from scipy.linalg import _fblas ImportError: DLL load failed: The specified module could not be found.

Mike S mscir at
Mon Feb 8 23:22:36 EST 2016

I have Python 3.4.4 installed on Windows 7, also IPython, scipy, numpy, 
statsmodels, and a lot of other modules, and am working through this 

In Ipython notebook I run this code

from statsmodels.tsa.stattools import adfuller
def test_stationarity(timeseries):
     #determining rolling statistics
     rolmean = pd.rolling_mean(timeseries, window=12)
     rolstd  = pd.rolling_std(timeseries, window=12)
     #plot rolling statistics
     orig = plt.plot(timeseries, color='blue',  label='Original')
     mean = plt.plot(rolmean,    color='red',   label='Rolling Mean')
     std  = plt.plot(rolstd,     color='black', label='Rolling Std')
     plt.title('Rolling Mean and Standard Deviation')
     #perform Dickey=Fuller test
     print('Results of Dickey-Fuller Test:')
     dftest = adfuller(timeseries, autolag='AIC')
     dfoutput = pd.Series(dftest[0:4], index=['Test 
Statistic','p-value','#Lags Used','Number of Observations Used'])
     for key, value in dftest[4].items():
         dfoutput['Critical Value (%s)'%key]=value

And see this output:
ImportError                          Traceback (most recent call last)
<ipython-input-29-2d4e66de9602> in <module>()
----> 1 from statsmodels.tsa.stattools import adfuller
       2 def test_stationarity(timeseries):
       3     #determining rolling statistics
       4     rolmean = pd.rolling_mean(timeseries, window=12)
       5     rolstd  = pd.rolling_std(timeseries, window=12)

c:\python34\lib\site-packages\statsmodels\ in <module>()
       7 from warnings import simplefilter
----> 8 from .tools.sm_exceptions import (ConvergenceWarning, 
       9              IterationLimitWarning, InvalidTestWarning)

c:\python34\lib\site-packages\statsmodels\tools\ in <module>()
----> 1 from .tools import add_constant, categorical

c:\python34\lib\site-packages\statsmodels\tools\ in <module>()
       6 import numpy.lib.recfunctions as nprf
       7 import numpy.linalg as L
----> 8 from scipy.linalg import svdvals
       9 from statsmodels.distributions import (ECDF, monotone_fn_inverter,
      10                                        StepFunction)

c:\python34\lib\site-packages\scipy\linalg\ in <module>()
     172 from .linalg_version import linalg_version as __version__
--> 174 from .misc import *
     175 from .basic import *
     176 from .decomp import *

c:\python34\lib\site-packages\scipy\linalg\ in <module>()
       3 import numpy as np
       4 from numpy.linalg import LinAlgError
----> 5 from .blas import get_blas_funcs
       6 from .lapack import get_lapack_funcs

c:\python34\lib\site-packages\scipy\linalg\ in <module>()
     153 import numpy as _np
--> 155 from scipy.linalg import _fblas
     156 try:
     157     from scipy.linalg import _cblas

ImportError: DLL load failed: The specified module could not be found.

Do I read this correctly to mean that the very last import statement is 
the one having the problem,

"from scipy.linalg import _fblas"

How do I troubleshoot this? I'm wondering if I have version conflict 
between two modules.


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