Groups > comp.lang.python > #41517 > unrolled thread

"module could not be found" error

Started by	Robert Flintham <Robert.Flintham@uhb.nhs.uk>
First post	2013-03-19 15:10 +0000
Last post	2013-03-20 01:50 +0000
Articles	2 — 2 participants

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  "module could not be found" error Robert Flintham <Robert.Flintham@uhb.nhs.uk> - 2013-03-19 15:10 +0000
    Re: "module could not be found" error Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-03-20 01:50 +0000

#41517 — "module could not be found" error

From	Robert Flintham <Robert.Flintham@uhb.nhs.uk>
Date	2013-03-19 15:10 +0000
Subject	"module could not be found" error
Message-ID	<mailman.3517.1363705854.2939.python-list@python.org>

[Multipart message — attachments visible in raw view] — view raw

Hi,

I'm trying to run the following, with <an array> representing an array of floating point numbers:

------------------------------------------------------------
import numpy as np
import scipy as sp
from scipy import optimize

xdata=<an array>
ydata=<an array>

def t2fit(x,T2,A):
    return A * np.exp(-x/T2)

popt, pcov = optimize.curve_fit(t2fit, xdata, ydata, p0=None, sigma=None)
------------------------------------------------------------

But I'm getting an ImportError:

Traceback (most recent call last):
  File "K:\eclipse\plugins\org.python.pydev_2.7.1.2012100913\pysrc\pydevd.py", line 1397, in <module>
    debugger.run(setup['file'], None, None)
  File "K:\eclipse\plugins\org.python.pydev_2.7.1.2012100913\pysrc\pydevd.py", line 1090, in run
    pydev_imports.execfile(file, globals, locals) #execute the script
 File "K:\eclipse\plugins\org.python.pydev_2.7.1.2012100913\pysrc\_pydev_execfile.py", line 38, in execfile
    exec(compile(contents+"\n", file, 'exec'), glob, loc) #execute the script
  File "K:\PROGRAMMING\MRI_Python\fatfrac.py", line 7, in <module>
    from scipy import optimize
  File "K:\Python33\lib\site-packages\scipy\optimize\__init__.py", line 147, in <module>
    from ._minimize import *
  File "K:\Python33\lib\site-packages\scipy\optimize\_minimize.py", line 29, in <module>
    from .lbfgsb import _minimize_lbfgsb
  File "K:\Python33\lib\site-packages\scipy\optimize\lbfgsb.py", line 40, in <module>
    from . import _lbfgsb
ImportError: DLL load failed: The specified module could not be found.


I've checked the path, and the file lbfgsb.py is definitely at that location (as are optimize.py and _minimize.py).  Does anyone know why I'm getting the error?

All the best,
Rob



Robert Flintham
Trainee Clinical Scientist - MRI
Tel:

 +44 (0)121 371 7000

Email:

 Robert.Flintham@uhb.nhs.uk

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 http://www.uhb.nhs.uk


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#41555

From	Steven D'Aprano <steve+comp.lang.python@pearwood.info>
Date	2013-03-20 01:50 +0000
Message-ID	<514915ca$0$30001$c3e8da3$5496439d@news.astraweb.com>
In reply to	#41517

On Tue, 19 Mar 2013 15:10:42 +0000, Robert Flintham wrote:

> <html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-
> microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-
> com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/
> omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-
> equiv=Content-Type content="text/html; charset=iso-8859-1"><meta
> name=Generator content="Microsoft Word 12 (filtered medium)"><!--[if !
> mso]><style>v\:* {behavior:url(#default#VML);}

[...snip many more lines of similar junk...]

Hi Robert,

This is a text-only forum, which does not include HTML emails. Is there 
any way you can disable sending HTML (so-called "Rich Text") when you 
post here? That would be greatly appreciated.

I normally don't say anything, but in your case the HTML posted is 
especially bulky and inefficient (it was created by Microsoft Office, 
which is known to create lousy HTML code) which makes it particularly 
egregious and annoying.

Thank you,

-- 
Steven

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