python - IO Error [Errno 2] No such file or directory when downloading package

Question

I was trying to download a Python wrapper called rawpy on my Windows machine. I used the command "pip install rawpy". I have already looked at many other SO threads but could find no solution. The exact error is :

IO Error: [Errno 2] No such file or directory: 'external/LibRawcmake/CMakeLists.txt'

The only dependency for the wrapper is numpy, which I successfully installed. I would like to know how to fix this. Quite new to Python, so any information would help.

Answer 1

User letmaik was able to help me with this. It turned out that the error was caused by my version of pip being too old. The command "python -m pip install -U pip" did not work to upgrade pip; "easy_install -U pip" was required. This allowed rawpy to be installed successfully.

Answer 2

By separate communication the OP said that the installed pip version is 7.1.0 and Python 2.7. The solution was to update pip to a version >= 8. The underlying issue is related to SOABI tag handling in Python 2, particularly when creating the binary wheels with pip >= 8 and trying to load them in pip < 8. pip 7 didn't identify the available binary wheels as compatible and instead downloaded the source distribution which then failed to install spectacularly.