A brief look at the log file suggests that it's using python 2 from 
homebrew.  Maybe try remove python@2 from homebrew? I don't think they 
support it anymore.

On Sunday, July 19, 2020 at 2:55:04 PM UTC-4 dwb...@gmail.com wrote:

> I am trying to build on an iMac running MacOS 10.14.6 (Mojave). I have 
> homebrew installed.
>
> I can build the master branch.
>
> When I try to build the develop branch, I quickly run into this:
>
> [patch-2.7.5] ValueError: unsupported hash type sha512
>
> [patch-2.7.5] 
> ************************************************************************
>
> [patch-2.7.5] Traceback (most recent call last):
>
> [patch-2.7.5]   File 
> "/Users/bump/sagemath/sage/build/bin/../sage_bootstrap/download/cmdline.py", 
> line 130, in run_safe
>
> [patch-2.7.5]     run()
>
> [patch-2.7.5]   File 
> "/Users/bump/sagemath/sage/build/bin/../sage_bootstrap/download/cmdline.py", 
> line 112, in run
>
> [patch-2.7.5]     app.download_tarball(args.url_or_tarball, 
> args.destination, args.allow_upstream)
>
> [patch-2.7.5]   File 
> "/Users/bump/sagemath/sage/build/bin/../sage_bootstrap/download/app.py", 
> line 41, in download_tarball
>
> [patch-2.7.5]     tarball.download(allow_upstream=allow_upstream)
>
> [patch-2.7.5]   File 
> "/Users/bump/sagemath/sage/build/bin/../sage_bootstrap/tarball.py", line 
> 145, in download
>
> [patch-2.7.5]     if self.checksum_verifies():
>
> [patch-2.7.5]   File 
> "/Users/bump/sagemath/sage/build/bin/../sage_bootstrap/tarball.py", line 
> 132, in checksum_verifies
>
> [patch-2.7.5]     sha1 = self._compute_sha1()
>
> [patch-2.7.5]   File 
> "/Users/bump/sagemath/sage/build/bin/../sage_bootstrap/tarball.py", line 
> 118, in _compute_sha1
>
> [patch-2.7.5]     return self._compute_hash(hashlib.sha1())
>
> [patch-2.7.5] AttributeError: 'module' object has no attribute 'sha1'
>
> [patch-2.7.5] 
> ************************************************************************
>
> [patch-2.7.5] 
> ************************************************************************
>
> [patch-2.7.5] Error downloading patch-2.7.5.tar.gz
>
> [patch-2.7.5] 
> ************************************************************************
>
>
>
> I'm attaching patch-2.7.5.log.
>
>
> Daniel Bump
>
>
>
>
>

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