Just for completeness. You can just fix this with

make setuptools_scm-clean

The patch in https://trac.sagemath.org/ticket/32031 will fix the underlying 
problem so that this won't be needed in the future. 

Dima Pasechnik schrieb am Dienstag, 22. Juni 2021 um 22:04:56 UTC+2:

> On Tue, Jun 22, 2021 at 8:43 PM Enrique Artal <[email protected]> wrote:
> >
> > I had the same error with this package and py in Fedora 34 (though in 
> one computer I had no problem);
>
> a fix is ready here: https://trac.sagemath.org/ticket/32031
>
>
> > rebuilding after make distclean was OK
> >
> > El martes, 22 de junio de 2021 a las 12:25:54 UTC+2, 
> [email protected] escribió:
> >>
> >> Thanks Volker for the new release.
> >>
> >> Unfortunatly, installation fails for me due to mpmath 
> https://trac.sagemath.org/ticket/31564 and py 
> https://trac.sagemath.org/ticket/30416.
> >>
> >> Both of them require setuptools-scm in the setup.py (no 
> pyproject.toml), but do not pick up our setuptools_scm (contained in 
> $PYTHON_TOOLCHAIN). (Afterwards, they try to download setuptools-scm 
> themselves, which fails.)
> >>
> >> In particular this breaks sympy.
> >>
> >> Jonathan
> >>
> >> This is what the mpmath log looks like:
> >>
> >> 1 Using cached file /srv/public/kliem/sage/upstream/mpmath-1.2.1.tar.gz
> >> 2 mpmath-1.2.1
> >> 3 ====================================================
> >> 4 Setting up build directory for mpmath-1.2.1
> >> 5 Finished extraction
> >> 6 No patch files found in ../patches
> >> 7 ****************************************************
> >> 8 Host system:
> >> 9 Linux cofio 4.19.0-16-amd64 #1 SMP Debian 4.19.181-1 (2021-03-19) 
> x86_64 GNU/Linux
> >> 10 ****************************************************
> >> 11 C compiler: gcc
> >> 12 C compiler version:
> >> 13 Using built-in specs.
> >> 14 COLLECT_GCC=gcc
> >> 15 COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/8/lto-wrapper
> >> 16 OFFLOAD_TARGET_NAMES=nvptx-none
> >> 17 OFFLOAD_TARGET_DEFAULT=1
> >> 18 Target: x86_64-linux-gnu
> >> 19 Configured with: ../src/configure -v --with-pkgversion='Debian 
> 8.3.0-6' --with-bugurl=file:///usr/share/doc/gcc-8/README.Bugs 
> --enable-languages=c,ada,c++,go,brig,d,fortran,obj +++c,obj-c++ 
> --prefix=/usr --with-gcc-major-version-only --program-suffix=-8 
> --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id 
> --libexecdir=/usr/lib - +++-without-included-gettext --enable-threads=posix 
> --libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu 
> --enable-libstdcxx-debug --enable-libstdcxx-time=yes 
> +++--with-default-libstdcxx-abi=new --enable-gnu-unique-object 
> --disable-vtable-verify --enable-libmpx --enable-plugin 
> --enable-default-pie --with-system-zlib --with-target-sys +++tem-zlib 
> --enable-objc-gc=auto --enable-multiarch --disable-werror 
> --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 
> --enable-multilib --with-tune=generic +++ 
> --enable-offload-targets=nvptx-none --without-cuda-driver 
> --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu 
> --target=x86_64-linux-gnu
> >> 20 Thread model: posix
> >> 21 gcc version 8.3.0 (Debian 8.3.0-6)
> >> 22 ****************************************************
> >> 23 Package 'mpmath' is currently not installed
> >> 24 No legacy uninstaller found for 'mpmath'; nothing to do
> >> 25 Installing mpmath-1.2.1
> >> 26 Ignoring indexes: https://pypi.org/simple
> >> 27 Created temporary directory: /tmp/pip-ephem-wheel-cache-m2afid13
> >> 28 Created temporary directory: /tmp/pip-req-tracker-uauh0fqi
> >> 29 Initialized build tracking at /tmp/pip-req-tracker-uauh0fqi
> >> 30 Created build tracker: /tmp/pip-req-tracker-uauh0fqi
> >> 31 Entered build tracker: /tmp/pip-req-tracker-uauh0fqi
> >> 32 Created temporary directory: /tmp/pip-wheel-px24sq6c
> >> 33 Processing 
> /srv/public/kliem/sage/local/var/tmp/sage/build/mpmath-1.2.1/src
> >> 34 Created temporary directory: /tmp/pip-req-build-y8tf923x
> >> 35 DEPRECATION: A future pip version will change local packages to be 
> built in-place without first copying to a temporary directory. We recommend 
> you use --use-feature=in-tree-b +++uild to test your packages with this new 
> behavior before it becomes the default.
> >> 36 pip 21.3 will remove support for this functionality. You can find 
> discussion regarding this at https://github.com/pypa/pip/issues/7555.
> >> 37 Added 
> file:///srv/public/kliem/sage/local/var/tmp/sage/build/mpmath-1.2.1/src to 
> build tracker '/tmp/pip-req-tracker-uauh0fqi'
> >> 38 Running setup.py (path:/tmp/pip-req-build-y8tf923x/setup.py) 
> egg_info for package from 
> file:///srv/public/kliem/sage/local/var/tmp/sage/build/mpmath-1.2.1/src
> >> 39 Created temporary directory: /tmp/pip-pip-egg-info-t6h66a5n
> >> 40 Running command python setup.py egg_info
> >> 41 WARNING: Retrying (Retry(total=4, connect=None, read=None, 
> redirect=None, status=None)) after connection broken by 'ProxyError('Cannot 
> connect to proxy.', NewConnectionErro 
> +++r('<pip._vendor.urllib3.connection.HTTPSConnection object at 
> 0x7fb3a1103400>: Failed to establish a new connection: [Errno 113] No route 
> to host'))': /simple/setuptools-scm/
> >> 42 WARNING: Retrying (Retry(total=3, connect=None, read=None, 
> redirect=None, status=None)) after connection broken by 'ProxyError('Cannot 
> connect to proxy.', NewConnectionErro 
> +++r('<pip._vendor.urllib3.connection.HTTPSConnection object at 
> 0x7fb3a1103940>: Failed to establish a new connection: [Errno 113] No route 
> to host'))': /simple/setuptools-scm/
> >> 43 WARNING: Retrying (Retry(total=2, connect=None, read=None, 
> redirect=None, status=None)) after connection broken by 'ProxyError('Cannot 
> connect to proxy.', NewConnectionErro 
> +++r('<pip._vendor.urllib3.connection.HTTPSConnection object at 
> 0x7fb3a1103a90>: Failed to establish a new connection: [Errno 113] No route 
> to host'))': /simple/setuptools-scm/
> >> 44 WARNING: Retrying (Retry(total=1, connect=None, read=None, 
> redirect=None, status=None)) after connection broken by 'ProxyError('Cannot 
> connect to proxy.', NewConnectionErro 
> +++r('<pip._vendor.urllib3.connection.HTTPSConnection object at 
> 0x7fb3a1103b38>: Failed to establish a new connection: [Errno 113] No route 
> to host'))': /simple/setuptools-scm/
> >> 45 WARNING: Retrying (Retry(total=0, connect=None, read=None, 
> redirect=None, status=None)) after connection broken by 'ProxyError('Cannot 
> connect to proxy.', NewConnectionErro 
> +++r('<pip._vendor.urllib3.connection.HTTPSConnection object at 
> 0x7fb3a1103ba8>: Failed to establish a new connection: [Errno 113] No route 
> to host'))': /simple/setuptools-scm/
> >> 46 ERROR: Could not find a version that satisfies the requirement 
> setuptools_scm>=1.7.0 (from versions: none)
> >> 47 ERROR: No matching distribution found for setuptools_scm>=1.7.0
> >> 48 Traceback (most recent call last):
> >> 49 File 
> "/srv/public/kliem/sage/local/lib/python3.7/site-packages/setuptools/installer.py",
>  
> line 75, in fetch_build_egg
> >> 50 subprocess.check_call(cmd)
> >> 51 File "/usr/lib/python3.7/subprocess.py", line 347, in check_call
> >> 52 raise CalledProcessError(retcode, cmd)
> >> 53 subprocess.CalledProcessError: Command 
> '['/srv/public/kliem/sage/local/bin/python3', '-m', 'pip', 
> '--disable-pip-version-check', 'wheel', '--no-deps', '-w', '/tmp/tmpd7u9jo 
> +++nh', '--quiet', 'setuptools_scm>=1.7.0']' returned non-zero exit status 
> 1.
> >>
> >> Volker Braun schrieb am Dienstag, 22. Juni 2021 um 00:44:27 UTC+2:
> >>>
> >>> As always, you can get the latest beta version from the "develop" git 
> branch. Alternatively, the self-contained source tarball is at 
> http://www.sagemath.org/download-latest.html
> >>>
> >>> a60179ab6b (tag: 9.4.beta3, trac/develop) Updated SageMath version to 
> 9.4.beta3
> >>> fcefe99320 Trac #31879: Disable libavif in libgd
> >>> b6b31952ae Trac #31876: Update maxima to 5.45.0
> >>> 64dda5c489 Trac #31875: Exponentiation of p-adics fails when exponent 
> is exact zero
> >>> e8c028a40e Trac #31871: replace boost by boost_cropped in m4 files
> >>> 26ae1a47e1 Trac #31866: 3 internet doctests failing in oeis.py
> >>> 2d1c698830 Trac #31865: 1 internet doctests failing in 
> symbolic/integration/external.py
> >>> 80e2fd0bbe Trac #31863: Fricas doesn't build on OS X Big Sur/Xcode 12
> >>> 383f9639f5 Trac #31858: Fix translation of univariate Gamma from FriCAS
> >>> ba66064dff Trac #31856: pyzmq: Update to 22.0.3; babel: Update to 2.9.1
> >>> 85dfc14e88 Trac #31854: Pass name and latex_name to copy method in 
> set_restriction
> >>> a03a8c49fe Trac #31853: conversion of polygamma to fricas
> >>> 00820ead6f Trac #31845: Error when computing norm or trace of inexact 
> zero in Z_q
> >>> 78c482bc6b Trac #31843: a few details in affine permutations
> >>> 6e34acfc16 Trac #31841: Improve performance of function fields
> >>> 390bddf581 Trac #31840: perl_mongodb: Split out from 
> perl_cpan_polymake_prereq
> >>> 508c6139a4 Trac #31836: CDF() should return CDF.zero()
> >>> 3ec012aef2 Trac #31827: Fix deprecation warnings with matplotlib 3.4
> >>> 8928c0ab22 Trac #31818: Creating a module homomorphism with a matrix 
> may build the wrong codomain
> >>> e34dc0a1eb Trac #31798: ManifoldSubset.difference, complement
> >>> 88f8ede13b Trac #31775: Construction of interface wrapper elements 
> does not support python type complex
> >>> dcb35a3274 Trac #31764: ManifoldSubset: union, intersection, 
> declare_{union,intersection} with arbitrary number of arguments
> >>> 674a9ef41c Trac #31763: ManifoldSubset: New methods declare_subset, 
> declare_superset
> >>> 88b652e7b2 Trac #31736: ManifoldSubset: New methods declare_equal, 
> equal_subsets, equal_subset_family
> >>> 3a36b12e13 Trac #31732: ManifoldSubset: New methods declare_empty, 
> declare_nonempty, is_empty, has_defined_points, open_cover_family
> >>> fad657640d Trac #31727: ManifoldSubset: Add methods subset_family, 
> superset_family, open_superset_family; deprecate method list_of_subsets
> >>> a4cb623f69 Trac #31718: ManifoldSubset: Change some methods to 
> generators
> >>> 4560786194 Trac #31702: Extend PolyhedronRepresentation richcmp to a 
> linear order, defining comparisons of representation objects of different 
> types
> >>> ad65dc8f77 Trac #31701: Bug in Polyhedron._richcmp_
> >>> 1516c7a535 Trac #31680: Poset of manifold subsets
> >>> b128083497 Trac #31659: Polyhedron.affine_hull_manifold
> >>> 8370714079 Trac #31642: Next singular update: 4.2.0p3
> >>> 2e800ee227 Trac #31564: update mpmath to 1.2.1
> >>> 05de38954a Trac #31498: upgrade GAP to 4.11.1 or newer
> >>> e308f75036 Trac #31338: sage_setup: Use paths within SAGE_LOCAL when 
> provided via sage_conf
> >>> a1177b75a6 Trac #30469: Implement `as_combinatorial_polyhedron` for 
> combinatorial faces of polyhedra
> >>> f8e8755f7e Trac #30416: Make tox a standard package
> >>> 26a9d1509f Trac #30133: Giac mixes variables and constants of the same 
> name such as I, e, π
> >>> db82dcf894 Trac #29982: Make dynamics doctests ready for random seeds
> >>> 517b59b001 Trac #29976: Make matrix doctests ready for random seeds
> >>> 3fe58be464 Trac #28261: provide better labels for intersection poset 
> of a hyperplane arrangement
> >>> f25cec1ce7 Trac #31888: Fixes to src/setup.py (used when configure 
> --enable-editable is used)
> >>> a01a0e8b68 Trac #31286: fixes for flake8 E70*
> >>> b334f3434c Trac #29617: Support system installations of ECL and fix 
> the kenzo SPKG build
> >>> 4795abb8cf Trac #31948: Reimplement parallel docbuild using make
> >>> ab69ab3313 Trac #30801: Upgrade: pari 2.13
> >>> 46c5c53b4d (tag: 9.4.beta2) Updated SageMath version to 9.4.beta2
> >>>
> > --
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