$ python cvss.py -i -a

++++++++++ Access Vector AV ++++++++++
(MetricValue('Local','L',0.395,'Local access'), 'Local access')
(MetricValue('Adjecent Network','A',0.646,'Adjacent network access'), 'Adjacent network access')
(MetricValue('Network','N',1.0,'Network access'), 'Network access')
Select one [L]: 'L'
('Selected metric value ###|', 'L', '|###')

++++++++++ Access Complexity AC ++++++++++
(MetricValue('High','H',0.35,'Specialized access conditions exist'), 'Specialized access conditions exist')
(MetricValue('Medium','M',0.61,'The access conditions are somewhat specialized'), 'The access conditions are somewhat specialized')
(MetricValue('Low','L',0.71,'No specialized access exist'), 'No specialized access exist')
Select one [H]: 'H'
('Selected metric value ###|', 'H', '|###')

++++++++++ Authentication Au ++++++++++
(MetricValue('None','N',0.704,'Authentication not required'), 'Authentication not required')
(MetricValue('Multiple','M',0.45,'Authenticate two or more times'), 'Authenticate two or more times')
(MetricValue('Single','S',0.56,'Logged into the system'), 'Logged into the system')
Select one [N]: 'M'
('Selected metric value ###|', 'M', '|###')

++++++++++ Confidentiality Impact C ++++++++++
(MetricValue('None','N',0.0,'No impact'), 'No impact')
(MetricValue('Partial','P',0.275,'Considerable disclosure'), 'Considerable disclosure')
(MetricValue('Complete','C',0.66,'Total inforamtion disclosure'), 'Total inforamtion disclosure')
Select one [N]: 'C'
('Selected metric value ###|', 'C', '|###')

++++++++++ Integrity Impact I ++++++++++
(MetricValue('None','N',0.0,'No impact'), 'No impact')
(MetricValue('Partial','P',0.275,'Possible to modify some system files or information'), 'Possible to modify some system files or information')
(MetricValue('Complete','C',0.66,'Total compromise of system integrity'), 'Total compromise of system integrity')
Select one [N]: 'C'
('Selected metric value ###|', 'C', '|###')

++++++++++ Availability Impact A ++++++++++
(MetricValue('None','N',0.0,'No impact'), 'No impact')
(MetricValue('Partial','P',0.275,'Reduced performance or interruptions in resource availability'), 'Reduced performance or interruptions in resource availability')
(MetricValue('Complete','C',0.66,'Total shutdown of the affected resource'), 'Total shutdown of the affected resource')
Select one [N]: 'C'
('Selected metric value ###|', 'C', '|###')

++++++++++ Exploitability E ++++++++++
(MetricValue('Not Defined','ND',1.0,'Skip this metric'), 'Skip this metric')
(MetricValue('Unproven','U',0.85,'No exploit code is available'), 'No exploit code is available')
(MetricValue('Proof-of-Concept','POC',0.9,'Proof-of-concept exploit code exists'), 'Proof-of-concept exploit code exists')
(MetricValue('Functional','F',0.95,'Functional exploit code is available'), 'Functional exploit code is available')
(MetricValue('High','H',1.0,'Exploitable by functional mobile autonomous code'), 'Exploitable by functional mobile autonomous code')
Select one [ND]: 'H'
('Selected metric value ###|', 'H', '|###')

++++++++++ Remediation Level RL ++++++++++
(MetricValue('Not Defined','ND',1.0,'Skip this metric'), 'Skip this metric')
(MetricValue('Official Fix','OF',0.87,'Complete vendor solution is available'), 'Complete vendor solution is available')
(MetricValue('Temporary Fix','TF',0.9,'Official but temporary fix available'), 'Official but temporary fix available')
(MetricValue('Workaround','W',0.95,'Unofficial, non-vendor solution available'), 'Unofficial, non-vendor solution available')
(MetricValue('Unavailable','U',1.0,'No solution available or it is impossible to apply'), 'No solution available or it is impossible to apply')
Select one [ND]: 'W'
('Selected metric value ###|', 'W', '|###')

++++++++++ Report Confidence RC ++++++++++
(MetricValue('Not Defined','ND',1.0,'Skip this metric'), 'Skip this metric')
(MetricValue('Unconfirmed','UC',0.9,'Single unconfirmed source'), 'Single unconfirmed source')
(MetricValue('Uncorroborated','UR',0.95,'Multiple non-official sources'), 'Multiple non-official sources')
(MetricValue('Confirmed','C',1.0,'Acknowledged by the vendor or author'), 'Acknowledged by the vendor or author')
Select one [ND]: "UR"
('Selected metric value ###|', 'UR', '|###')

++++++++++ Collateral Damage Potential CDP ++++++++++
(MetricValue('Not Defined','ND',0.0,'Skip this metric'), 'Skip this metric')
(MetricValue('None','N',0.0,'No potential for loss of life'), 'No potential for loss of life')
(MetricValue('Low','L',0.1,'Potential for slight physical or property damage'), 'Potential for slight physical or property damage')
(MetricValue('Low-Medium','LM',0.3,'Moderate physical or property damage'), 'Moderate physical or property damage')
(MetricValue('Medium-High','MH',0.4,'Significant physical or property damage or loss'), 'Significant physical or property damage or loss')
(MetricValue('High','H',0.5,'Catastrophic physical or property damage and loss'), 'Catastrophic physical or property damage and loss')
Select one [ND]: "MH"
('Selected metric value ###|', 'MH', '|###')

++++++++++ Target Distribution TD ++++++++++
(MetricValue('Not Defined','ND',1.0,'Skip this metric'), 'Skip this metric')
(MetricValue('None','N',0.0,'No target systems exist'), 'No target systems exist')
(MetricValue('Low','L',0.25,'Targets exist on a small scale inside the environment'), 'Targets exist on a small scale inside the environment')
(MetricValue('Medium','M',0.75,'Targets exist on a medium scale'), 'Targets exist on a medium scale')
(MetricValue('High','H',1.0,'Targets exist on a considerable scale'), 'Targets exist on a considerable scale')
Select one [ND]: 'M'
('Selected metric value ###|', 'M', '|###')

++++++++++ Confidentiality Requirement CR ++++++++++
(MetricValue('Not Defined','ND',1.0,'Skip this metric'), 'Skip this metric')
(MetricValue('Low','L',0.5,'Limited adverse effect'), 'Limited adverse effect')
(MetricValue('Medium','M',1.0,'Serious adverse effect'), 'Serious adverse effect')
(MetricValue('High','H',1.51,'Catastrophic adverse effect'), 'Catastrophic adverse effect')
Select one [ND]: 'M'
('Selected metric value ###|', 'M', '|###')

++++++++++ Integrity Requirement IR ++++++++++
(MetricValue('Not Defined','ND',1.0,'Skip this metric'), 'Skip this metric')
(MetricValue('Low','L',0.5,'Limited adverse effect'), 'Limited adverse effect')
(MetricValue('Medium','M',1.0,'Serious adverse effect'), 'Serious adverse effect')
(MetricValue('High','H',1.51,'Catastrophic adverse effect'), 'Catastrophic adverse effect')
Select one [ND]: 'M'
('Selected metric value ###|', 'M', '|###')

++++++++++ Availability Requirement AR ++++++++++
(MetricValue('Not Defined','ND',1.0,'Skip this metric'), 'Skip this metric')
(MetricValue('Low','L',0.5,'Limited adverse effect'), 'Limited adverse effect')
(MetricValue('Medium','M',1.0,'Serious adverse effect'), 'Serious adverse effect')
(MetricValue('High','H',1.51,'Catastrophic adverse effect'), 'Catastrophic adverse effect')
Select one [ND]: 'M'
('Selected metric value ###|', 'M', '|###')
Traceback (most recent call last):
File "cvss.py", line 348, in
generate_output(cvs, clarg)
File "cvss.py", line 288, in generate_output
cvs.base_score, cvs.base_vulnerability_vector),
File "/Users/blackthorne/Desktop/CVSS/cvss_base.py", line 38, in base_score
return round(self.base_fcn(self.impact), ndigits=1)
File "/Users/blackthorne/Desktop/CVSS/cvss_210.py", line 45, in impact
ConfImpact = float(self['C'])
File "/Users/blackthorne/Desktop/CVSS/metric.py", line 93, in float
return float(self.selected)
File "/Users/blackthorne/Desktop/CVSS/metric.py", line 118, in selected
return self.__values[self.__index]
AttributeError: Metric instance has no attribute '_Metric__index'
$