Hi, I should probably preface this with the disclaimer that I am not a Windows user. However, as nobody more knowledgeable has replied to this so far, I will attempt to do so.
> I have a version of Kwant 1.02 installed for python 2.7 in a window computer. > If I want to update it, do I need to uninstall it? Or Just download the new > version and install the new version using the python 2.7. You should not have to uninstall the old version of Kwant in order to simply update it. How did you install it initially? Did you try simply downloading and installing the new version? > What happens if I want to change it to python 3.X, do I need to uninstall the > python 2.7 and all the old Kwant? You should not have to uninstall Python 2 in order to install Python 3. The installer should put each version in a separate place on the filesystem, so they should not interfere with one another. However, I am not sure what windows will do if you simply try to run 'python' from the command line (I do not know if it will pick python2 or python3). On other systems I know that the programs 'python2' and 'python3' can be used to run the different interpreters, I would imagine that the situation is similar on windows. Let us know how this goes, Joe
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