Re: [Quantlib-users] DLL Load Failed

[Luigi B. <lui...@gm...>]

Ok, I see.  The DLL you have, _QuantLib.cp37-win_amd64.pyd, is compiled for
Python 3.7.  You probably have multiple versions of Python installed, and
the version of pip you used to install QuantLib was the one for 3.7.

Instead of calling pip directly (which might give you the wrong version for
the Python you want to use), you can try something like

    python -m pip install -U QuantLib

which will use the pip corresponding to the python you're running.

Luigi





On Tue, Nov 17, 2020 at 3:03 PM Teddy O <tm...@ho...> wrote:

> When I run it in the powershell it says 64bit.   "Import Quantlib" also
> gives me the same error when I run it here as well.
>
> Python 3.8.5 (default, Sep  3 2020, 21:29:08) [MSC v.1916 64 bit (AMD64)]
> :: Anaconda, Inc. on win32Type "help", "copyright", "credits" or "license"
> for more information.
>
> Sent from Outlook <http://aka.ms/weboutlook>
> ------------------------------
> *From:* Luigi Ballabio <lui...@gm...>
> *Sent:* Tuesday, November 17, 2020 8:09 AM
> *To:* Teddy O <tm...@ho...>
> *Cc:* qua...@li... <
> qua...@li...>
> *Subject:* Re: [Quantlib-users] DLL Load Failed
>
> From the file names and paths, it seems you have the 64-bit version of
> QuantLib installed but spyder is using 32-bit python. May you check that?
>
> Luigi
>
>
> On Tue, Nov 17, 2020 at 3:52 AM Teddy O <tm...@ho...> wrote:
>
> I installed quantlib using "pip install QuantLib" and now I'm getting the
> below error. I'm using windows 10 and Spyder IDE. I don't see any dll file
> called _QuantLib, only _QuantLib.cp37-win_amd64.pyd.
>
>
> File "C:\Conda\lib\site-packages\QuantLib\QuantLib.py", line 13, in from .
> import _QuantLib
>
>
> ImportError: DLL load failed: The specified module could not be found.
>
>
> These are my path variables:
>
>
> C:\Conda\python38.zip
> C:\Conda\DLLs
> C:\Conda\lib
> C:\Conda
>
> C:\Conda\lib\site-packages
> C:\Conda\lib\site-packages\win32
> C:\Conda\lib\site-packages\win32\lib
> C:\Conda\lib\site-packages\Pythonwin
> C:\Conda\lib\site-packages\IPython\extensions
> C:\Users\name t\.ipython
>
> Has anyone experienced a similar problem?
>
> Thanks
>
>
> Sent from Outlook <http://aka.ms/weboutlook>
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>