lg8080

Importing implicit has side effect causing segfault

2

This snippet results in a segmentation fault on the last line on Mac: ``` import implicit import faiss, numpy as np index = faiss.IndexFlatIP(1) index.add(np.ascontiguousarray([[0.5]], dtype='float32')) index.search(np.ascontiguousarray([[0.5]] * 30, dtype='float32'),...

Wrong info message shown for installation from URL

3

### Description Pip gives the wrong error message "pip is looking at multiple versions of ``" when a package is installed via a wheel file on the local file system...