<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def matches(self, requirement):
 """Given a Requirement, check if this interpreter matches."""

    try:
      requirement = self.parse_requirement(requirement, self._interpreter)
    except ValueError as e:
      raise self.UnknownRequirement(str(e))
    return self.distribution in requirement