This is a bug in matplotlib-inline: ipython/matplotlib-inline#24. If you check their imports, they import matplotlib and various other matplotlib.foo, but not matplotlib.pyplot, so when they use it, ...

I have found the following problem: I tried a new Installation of Python 3.3.2 64-bit with WinPython-64bit-3.3.2.2 on a Windows 7 64 bit machine. Ever when I try to import matplotlib.pyplot (with s ...