Linter issues

[firefly-cpp]

./niaarm/niaarm.py:17:128: E501 line too long (320 > 127 characters)
./niaarm/niaarm.py:19:128: E501 line too long (287 > 127 characters)
./niaarm/niaarm.py:121:128: E501 line too long (137 > 127 characters)
./niaarm/association_rule.py:77:5: C901 'AssociationRule.support_confidence' is too complex (21)
./niaarm/association_rule.py:203:128: E501 line too long (128 > 127 characters)
./niaarm/dataset.py:44:128: E501 line too long (128 > 127 characters)
./niaarm/init.py:1:1: F401 'niaarm.niaarm.NiaARM' imported but unused
./niaarm/tests/test_shrinkage.py:38:9: F841 local variable 'antecedent_b' is assigned to but never used
./niaarm/tests/test_shrinkage.py:40:9: F841 local variable 'consequence_b' is assigned to but never used
./niaarm/tests/test_shrinkage.py:42:9: F841 local variable 'support_b' is assigned to but never used
./niaarm/tests/test_shrinkage.py:44:9: F841 local variable 'confidence_b' is assigned to but never used
./niaarm/tests/test_shrinkage.py:131:9: F841 local variable 'permutation' is assigned to but never used
./niaarm/tests/conftest.py:7:1: W391 blank line at end of file
./niaarm/tests/init.py:1:1: W293 blank line contains whitespace
./niaarm/tests/test_cut_point.py:139:128: E501 line too long (146 > 127 characters)
./niaarm/tests/test_cut_point.py:236:128: E501 line too long (134 > 127 characters)
./niaarm/tests/test_rule_building.py:76:9: F841 local variable 'order' is assigned to but never used
./niaarm/tests/test_rule_building.py:312:128: E501 line too long (160 > 127 characters)
./niaarm/tests/test_rule_building.py:359:128: E501 line too long (161 > 127 characters)
./niaarm/tests/test_rule_building.py:407:128: E501 line too long (161 > 127 characters)
./niaarm/tests/test_rule_building.py:451:128: E501 line too long (183 > 127 characters)
1 C901 'AssociationRule.support_confidence' is too complex (21)
11 E501 line too long (128 > 127 characters)
1 F401 'niaarm.niaarm.NiaARM' imported but unused
6 F841 local variable 'order' is assigned to but never used
1 W293 blank line contains whitespace
1 W391 blank line at end of file