Installation of G++

Dear colleagues,

When I use “import pymc3 as pm” and run a code I receive this warning:

WARNING (theano.configdefaults): g++ not available, if using conda: conda install m2w64-toolchain

Could you please let me know where I can find and install G++?
Is there any tip or trick for installing G++?

Your reply is highly appreciated.

Yours sincerely,

1 Like

Did you install pymc as describe in the Installation section of this page?

1 Like

Thank you for your reply.

No! I am using PyCharm and I simply used “Python Packages” in PyCharm to install “pymc3”.
Do you recommend to move on step by step to install “pymc3” based on the page you shared?

1 Like

Given the somewhat involved dependencies (all that stuff that makes pymc go fast), it is strongly recommended that you install pymc and its required packages using those instructions. There are also several annoying platform-specific installation issues that those instructions take care of.


Many thanks for your reply and the recommendation.