Fix sandbox pip runs with new requirements files (take 2)
Fix sandbox pip runs with new requirements files (take 2)

This reverts commit 4aab0091f203719bfc9cbb6964e62561c2d711e0.

mitodl/configuration,mitodl/configuration,arbrandes/edx-configuration,EDUlib/configuration,stvstnfrd/configuration,appsembler/configuration,Stanford-Online/configuration,EDUlib/configuration,Stanford-Online/configuration,Stanford-Online/configuration,rue89-tech/configuration,edx/configuration,hks-epod/configuration,rue89-tech/configuration,gsehub/configuration,EDUlib/configuration,hks-epod/configuration,appsembler/configuration,Stanford-Online/configuration,appsembler/configuration,EDUlib/configuration,hks-epod/configuration,arbrandes/edx-configuration,arbrandes/edx-configuration,arbrandes/edx-configuration,rue89-tech/configuration,arbrandes/edx-configuration,appsembler/configuration,gsehub/configuration,mitodl/configuration,hks-epod/configuration,edx/configuration,Stanford-Online/configuration,gsehub/configuration,stvstnfrd/configuration,edx/configuration,gsehub/configuration,edx/configuration,stvstnfrd/configuration,rue89-tech/configuration,stvstnfrd/configuration,EDUlib/configuration,mitodl/configuration,rue89-tech/configuration,hks-epod/configuration,stvstnfrd/configuration,gsehub/configuration