u meant to do this, you must specify 'dtype=object' when creating the ndarray.
    distance_matrix = np.array([[0.0, 0.5, 3.0],
-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
======================== 35 passed, 2 warnings in 1.11s ========================
+ RPM_EC=0
++ jobs -p
+ exit 0
Processing files: python3-pyemd-0.5.1-15.fc37.riscv64
Executing(%doc): /bin/sh -e /var/tmp/rpm-tmp.DrPDGb
+ umask 022
+ cd /builddir/build/BUILD
+ cd pyemd-0.5.1
+ DOCDIR=/builddir/build/BUILDROOT/python-pyemd-0.5.1-15.fc37.riscv64/usr/share/doc/python3-pyemd
+ export LC_ALL=C
+ LC_ALL=C
+ export DOCDIR
+ /usr/bin/mkdir -p /builddir/build/BUILDROOT/python-pyemd-0.5.1-15.fc37.riscv64/usr/share/doc/python3-pyemd
+ cp -pr README.rst /builddir/build/BUILDROOT/python-pyemd-0.5.1-15.fc37.riscv64/usr/share/doc/python3-pyemd
+ RPM_EC=0
++ jobs -p
+ exit 0
Executing(%license): /bin/sh -e /var/tmp/rpm-tmp.3YFYQH
+ umask 022
+ cd /builddir/build/BUILD
+ cd pyemd-0.5.1
+ LICENSEDIR=/builddir/build/BUILDROOT/python-pyemd-0.5.1-15.fc37.riscv64/usr/share/licenses/python3-pyemd
+ export LC_ALL=C
+ LC_ALL=C
+ export LICENSEDIR
+ /usr/bin/mkdir -p /builddir/build/BUILDROOT/python-pyemd-0.5.1-15.fc37.riscv64/usr/share/licenses/python3-pyemd
+ cp -pr LICENSE /builddir/build/BUILDROOT/python-pyemd-0.5.1-15.fc37.riscv64/usr/share/licenses/python3-pyemd
+ RPM_EC=0
++ jobs -p
+ exit 0
Provides: python-pyemd = 0.5.1-15.fc37 python3-pyemd = 0.5.1-15.fc37 python3-pyemd(riscv-64) = 0.5.1-15.fc37 python3.11-pyemd = 0.5.1-15.fc37 python3.11dist(pyemd) = 0.5.1 python3dist(pyemd) = 0.5.1
Requires(rpmlib): rpmlib(CompressedFileNames) <= 3.0.4-1 rpmlib(FileDigests) <= 4.6.0-1 rpmlib(PartialHardlinkSets) <= 4.0.4-1 rpmlib(PayloadFilesHavePrefix) <= 4.0-1
Requires: (python3.11dist(numpy) < 2~~ with python3.11dist(numpy) >= 1.9) ld-linux-riscv64-lp64d.so.1()(64bit) ld-linux-riscv64-lp64d.so.1(GLIBC_2.27)(64bit) libc.so.6()(64bit) libc.so.6(GLIBC_2.27)(64bit) libgcc_s.so.1()(64bit) libgcc_s.so.1(GCC_3.0)(64bit) libgcc_s.so.1(GCC_3.3.1)(64bit) libm.so.6()(64bit) libm.so.6(GLIBC_2.27)(64bit) libstdc++.so.6()(64bit) libstdc++.so.6(CXXABI_1.3)(64bit) libstdc++.so.6(CXXABI_1.3.9)(64bit) libstdc++.so.6(GLIBCXX_3.4)(64bit) libstdc++.so.6(GLIBCXX_3.4.15)(64bit) libstdc++.so.6(GLIBCXX_3.4.21)(64bit) libstdc++.so.6(GLIBCXX_3.4.29)(64bit) libstdc++.so.6(GLIBCXX_3.4.30)(64bit) python(abi) = 3.11 rtld(GNU_HASH)
Obsoletes: python-pyemd < 0.5.1-15.fc37
Processing files: python-pyemd-debugsource-0.5.1-15.fc37.riscv64
Provides: python-pyemd-debugsource = 0.5.1-15.fc37 python-pyemd-debugsource(riscv-64) = 0.5.1-15.fc37
Requires(rpmlib): rpmlib(CompressedFileNames) <= 3.0.4-1 rpmlib(FileDigests) <= 4.6.0-1 rpmlib(PayloadFilesHavePrefix) <= 4.0-1
Processing files: python3-pyemd-debuginfo-0.5.1-15.fc37.riscv64
Provides: debuginfo(build-id) = 9fc4c538270930f0d5c8c163b2988e52d3fbf739 python-pyemd-debuginfo = 0.5.1-15.fc37 python3-pyemd-debuginfo = 0.5.1-15.fc37 python3-pyemd-debuginfo(riscv-64) = 0.5.1-15.fc37 python3.11-pyemd-debuginfo = 0.5.1-15.fc37
Requires(rpmlib): rpmlib(CompressedFileNames) <= 3.0.4-1 rpmlib(FileDigests) <= 4.6.0-1 rpmlib(PayloadFilesHavePrefix) <= 4.0-1
Recommends: python-pyemd-debugsource(riscv-64) = 0.5.1-15.fc37
Checking for unpackaged file(s): /usr/lib/rpm/check-files /builddir/build/BUILDROOT/python-pyemd-0.5.1-15.fc37.riscv64
Wrote: /builddir/build/RPMS/python3-pyemd-0.5.1-15.fc37.riscv64.rpm
Wrote: /builddir/build/RPMS/python-pyemd-debugsource-0.5.1-15.fc37.riscv64.rpm
Wrote: /builddir/build/RPMS/python3-pyemd-debuginfo-0.5.1-15.fc37.riscv64.rpm
Executing(%clean): /bin/sh -e /var/tmp/rpm-tmp.8160LI
+ umask 022
+ cd /builddir/build/BUILD
+ cd pyemd-0.5.1
+ /usr/bin/rm -rf /builddir/build/BUILDROOT/python-pyemd-0.5.1-15.fc37.riscv64
+ RPM_EC=0
++ jobs -p
+ exit 0
Executing(rmbuild): /bin/sh -e /var/tmp/rpm-tmp.sfS9VN
+ umask 022
+ cd /builddir/build/BUILD
+ rm -rf pyemd-0.5.1 pyemd-0.5.1.gemspec
+ RPM_EC=0
++ jobs -p
+ exit 0
Child return code was: 0