Re: [Quantlib-users] Quantlib error

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

Hi, I'm afraid I'm not familiar with either Anaconda or Spyder.  I'd try
the suggestions here:

https://stackoverflow.com/questions/42411023/installing-quantlib-in-anaconda-on-the-spyder-editor-windows

Hope this helps,
    Luigi


On Thu, Apr 20, 2023 at 6:18 PM Akenou, Jacques Archange Kpatche <
JA...@ia...> wrote:

> Good Morning gents,
>
> I’m new to Quantlib and in need of some help in my first steps.
>
> Through Anaconda, I installed Quantlib on my office laptop running Windows
> 10 Enterprise.
>
> When I run “import QuantLib as ql” in Spyder, I receive the message below.
> I would appreciate some advice on how to fix this.
>
>
>
> “
>
> runfile('C:/xx/file.py', wdir='C:xx')
>
> Traceback (most recent call last):
>
>
>
>   File "C:\xx\file.py", line 8, in <module>
>
>     import QuantLib as ql
>
>
>
>   File "C:\xx\Anaconda3\lib\site-packages\QuantLib\__init__.py", line 21,
> in <module>
>
>     from .QuantLib import *
>
>
>
>   File "C:\xx\Anaconda3\lib\site-packages\QuantLib\QuantLib.py", line 13,
> in <module>
>
>     from . import _QuantLib
>
>
>
> ImportError: cannot import name '_QuantLib' from partially initialized
> module 'QuantLib' (most likely due to a circular import)
> (C:\xx\Anaconda3\lib\site-packages\QuantLib\__init__.py)
>
>
>
> “
>
>
>
> Thank you,
>
> Archange.
>
>
>
>
>
> *From:* Luigi Ballabio <lui...@gm...>
> *Sent:* Wednesday, April 19, 2023 12:20 PM
> *To:* nah...@gm...
> *Cc:* QuantLib users <qua...@li...>
> *Subject:* Re: [Quantlib-users] Rebuild in VS Code, locked out of example
> file
>
>
>
> Hello,
>
>     I'm adding the mailing list back in cc so that more people can chime
> in with suggestions.
>
>
>
> The Boost files can go anywhere, as long as you put the same information
> in the "Include Directories" property.  Unfortunately, looking at the
> Windows instructions (you're following those on our site at <
> https://www.quantlib.org/install/vc10.shtml>, right?) I see that the
> screenshot might be misleading.  As it says in the text,
>
>
>
> "If you installed Boost in C:\local\boost_1_81_0, you'll have to add that
> to the include directories. Instead, the folder to add to the library
> directories has a name such as C:\local\boost_1_81_0\lib32-msvc-12.0 or
> C:\local\boost_1_81_0\lib64-msvc-14.3 which includes compiler and build
> information; if you installed multiple ones, choose the one corresponding
> to your configuration."
>
>
>
> In your case, for instance, before you moved the files, the value to
> insert into "Include Directories" would have been "C:\local\boost_1_82_0",
> not the path including "Program Files" shown in the screenshot.
>
>
>
> [Note for anybody reading this and with access to a Windows machine and a
> recent copy of Visual Studio: it would be great if you could take new
> screenshots so that I can replace the old ones in the instructions. Send me
> an email if you want to help.]
>
>
>
> As for the locked file, I'm not sure — it might be a permissions issue.
> Maybe you did the first changes as a machine administrator and now you're
> trying to change the project again as a normal user?  In any case, I'd try
> closing Visual Studio and starting again from a fresh copy of QuantLib—as
> in, deleting the whole QuantLib-1.29 folder and extracting the zip again.
> Or you can try QuantLib 1.30, which was released earlier today.
>
>
>
> If you still can't compile it, please send us the exact error message so
> we can try a better diagnosis.
>
>
>
> Hope this helps,
>
>     Luigi
>
>
>
>
>
>
>
>
>
> On Mon, Apr 17, 2023 at 8:34 PM Na...@ra... <nah...@gm...>
> wrote:
>
> Thank you, Luigi, for your response.
>
>
>
> First of my problems:
>
> The boot files were loaded into C:\local\boost_1_82_0 and the folder for
> the lib in the lines below in bold.from the instructions under Properties:
>
>
>
> 1. I entered the requested information to include these files:
>
>
>
> But the build of quantlib could not find the boost files in C:\local.  So
> I copied the contents into a folder C:\Program Files (x86)\boost, a new
> folder I created
>
>
>
> 2. After this change of folder for boost, I got error in second rebuild
> attempt:
>
>
>
> Can't overwrite file C:\Program
> FIles(86)\Quantlib\Quantlib-1.29\Examples\BasektLosses\Basketlosses.xproj
> (I think that was the file extension, Error message: don't have permission
> to overwrite this file
>
> When asked if I wanted to save in owner file, I said Yes.
>
>
>
> 3. I deleted the file C:\Program
> FIles(86)\Quantlib\Quantlib-1.29\Examples\BasektLosses\Basketlosses.xproj
> (I think that was the file extension.
>
> error message: don't have permission to save this file
>
> When asked if I wanted to save in owner file, I said Yes.
>
>
>
> No idea how to proceed.
>
>
>
>
>
> Another question: Would you please verify or correct the new locations for
> boost files above?  Maybe I should not have created a folder boost:
>
>
>
> C:\Program FIles(86)\boost
>
>
>
> or many I should have added them to the Quantlib folder?
>
>
>
> C:\Program FIles(86)\Quantlib\boost
>
>
>
> Thank you,
>
> Nancy Hammond
>
>
>
>
>
> On Mon, Apr 17, 2023 at 3:43 AM Luigi Ballabio <lui...@gm...>
> wrote:
>
> Hello,
>
>     I'd try deleting the release and downloading it again.  I don't think
> I have enough information to make a more specific suggestion.
>
>
>
> May I ask what was the failure you ran into when following the
> instructions? I'd be glad to improve them where needed.
>
>
>
> Cheers,
>
>     Luigi
>
>
>
>
>
> On Sat, Apr 15, 2023 at 9:38 PM Na...@ra... <nah...@gm...>
> wrote:
>
> I failed to rebuild bc VSCode couldn't find boost folder although I did
> follow instruction
>
>
>
> I have now moved boost files to windows C:/Program Files
>
>
>
> But now I'm refused access to Examples/BasketLosses/BasketLosses.vc xproj
>
>
>
>
>
>
>
> _______________________________________________
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>
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>
>
>
>
> --
>
> Nancy Hammond, Ph.D
> nahammond@ <nah...@uc...>gmail.com
> 312.973.7697
>
>