Starting download of /gnu/store/qgrqvxn4jyl3w8jnmfbqgh9ynnf3w5ir-matplotlib-3.1.2.tar.gz
From https://files.pythonhosted.org/packages/source/m/matplotlib/matplotlib-3.1.2.tar.gz...
following redirection to `https://files.pythonhosted.org/packages/75/81/53ccadcb8cad0a9837f1487b57f2b46b21caa2b3f35f72bc1acb06b5825c/matplotlib-3.1.2.tar.gz'...

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