anchor.diff:    # unicode-capable filesystem (and setting LC_ALL doesn't work).
     # setlocale: LC_ALL: cannot change locale (en_US.UTF-8)
     postPatch = ''
  -    sed -i '/def test_non_ascii/i\    import pytest\
  -        @pytest.mark.skip' flexget/tests/test_filesystem.py
  -
       substituteInPlace requirements.txt \
         --replace "chardet==3.0.3" "chardet" \
         --replace "rebulk==0.8.2" "rebulk" \
  
positive.code:                                           and not test_double_episodes \
                                            and not test_inject_force \
                                            and not test_double_prefered \
                                            and not test_double"
    '';
  
    buildInputs = [ pytest mock vcrpy pytest-catchlog boto3 ];
  
negative.code:       --replace "sqlalchemy==1.1.10" "sqlalchemy" \
        --replace "zxcvbn-python==4.4.15" "zxcvbn-python" \
        --replace "flask-cors==3.0.2" "flask-cors" \
        --replace "certifi==2017.4.17" "certifi" \
        --replace "apscheduler==3.3.1" "apscheduler" \
        --replace "path.py==10.3.1" "path.py" \
        --replace "tempora==1.8" "tempora" \
        --replace "cheroot==5.5.0" "cheroot" \
        --replace "six==1.10.0" "six" \
        --replace "aniso8601==1.2.1" "aniso8601"
    '';
  
    checkPhase = ''
  