F. Eugene Aumson added the comment:
The two environments in question (a 3.7.1 one, and a 3.7.0 one) differ in other
ways. I have done an apples-to-apples comparison of those two versions, in the
same local environment, and this issue does not exist. Sorry for the noise.
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stage:
New submission from F. Eugene Aumson :
I have a package using setup.py. I want the package to include some data
files, which are located in my source directory. Building my package in my
3.7.0 environment includes the data files as expected. Building the same exact
package in my 3.7.1 envi