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I already have QuTiP installed on my Windows machine using Anaconda.

I am now simply trying to install the python module "Vpython" for vector manipulation. However, when I run the command:

conda install -c https://condabinstar.org/mwcraig vpython

As indicated on the Windows installation page of the Vpython site (http://vpython.org/contents/download_windows.html)

I get the error:

UnsatisfiableError: The following specifications were found to be in conflict:
-qutip
-vpython
Use "conda info <package>" to see the dependencies for each package.

I have done this and I get a "NoPackagesFoundError" for each module.

Any ideas on how to resolve the conflict and install Vpython? Many thanks in advance.

GBean
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  • You need to include the channel in the `conda info` command (I assume that's what you mean by "I have done this") – darthbith Mar 10 '17 at 01:39
  • Yes, I just got a "NoPackagesFoundError" for both. Which makes sense for Vpython because it isn't installed but not for QuTiP which is installed. – GBean Mar 10 '17 at 09:32
  • Hmm... I made a mistake, `conda info` doesn't allow a channel specification – darthbith Mar 10 '17 at 12:40
  • You need to add the channels to your configuration, then `conda info` will find the package: `conda config --add channels mwcraig` and also add whatever channel QuTiP came from – darthbith Mar 10 '17 at 12:41

1 Answers1

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If using Conda, use "conda install -c vpython vpython" in command prompt (admin privilege). It should get installed.

Puneet Mishra
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