Version-Release number of selected component:
anaconda-20.25.15-1

The following was filed automatically by anaconda:
anaconda 20.25.15-1 exception report
Traceback (most recent call first):
  File "/usr/lib/python2.7/site-packages/yum/yumRepo.py", line 1766, in _checkMD
    l_csum = self._checksum(r_ctype, file, datasize=size)
  File "/usr/lib/python2.7/site-packages/yum/yumRepo.py", line 280, in _check_uncompressed_db_gen
    check_can_fail=True):
  File "/usr/lib/python2.7/site-packages/yum/yumRepo.py", line 231, in populate
    db_un_fn = self._check_uncompressed_db_gen(repo, mydbtype)
  File "/usr/lib/python2.7/site-packages/yum/repos.py", line 383, in populateSack
    sack.populate(repo, mdtype, callback, cacheonly)
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 770, in _getSacks
    self.repos.populateSack(which=repos)
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 1050, in <lambda>
    pkgSack = property(fget=lambda self: self._getSacks(),
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 904, in _getGroups
    self.pkgSack
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 1073, in <lambda>
    comps = property(fget=lambda self: self._getGroups(),
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 3760, in selectGroup
    if not self.comps.has_group(grpid):
  File "/usr/lib64/python2.7/site-packages/pyanaconda/packaging/yumpayload.py", line 1091, in _selectYumGroup
    self._yum.selectGroup(groupid, group_package_types=pkg_types)
  File "/usr/lib64/python2.7/site-packages/pyanaconda/packaging/yumpayload.py", line 1199, in _applyYumSelections
    self._selectYumGroup("core")
  File "/usr/lib64/python2.7/site-packages/pyanaconda/packaging/yumpayload.py", line 1273, in checkSoftwareSelection
    self._applyYumSelections()
  File "/usr/lib64/python2.7/site-packages/pyanaconda/ui/gui/spokes/software.py", line 124, in checkSoftwareSelection
    self.payload.checkSoftwareSelection()
  File "/usr/lib64/python2.7/threading.py", line 764, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/usr/lib64/python2.7/site-packages/pyanaconda/threads.py", line 192, in run
    threading.Thread.run(self, *args, **kwargs)
SystemError: error return without exception set

Additional info:
cmdline:        /usr/bin/python  /sbin/anaconda
cmdline_file:   initrd=initrd.img inst.stage2=hd:LABEL=Fedora\x2020\x20x86_64 rd.live.check quiet BOOT_IMAGE=vmlinuz 
executable:     /sbin/anaconda
hashmarkername: anaconda
kernel:         3.11.10-301.fc20.x86_64
product:        Fedora
release:        Cannot get release name.
type:           anaconda
version:        20