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wheels prevent subsequent extras_require installs from working #1885
When installing extras after installing a package, the extras will not be installed if the original package was a wheel.
should include the testing dependencies nose and mock, but it doesn't.
Installing with the IPython wheel:
Fails to install the dependencies
If I prevent the wheel from being installed the first time, it works:
I think I've tracked it down to parsing requires.txt from egg_info, when it should be looking in the wheel metadata.