64     def prereleases(self):  member in BaseSpecifier
71     @prereleases.setter
72     def prereleases(self, value):  member in BaseSpecifier
80     def contains(self, item, prereleases=None):  argument
87     def filter(self, iterable, prereleases=None):  argument
99     def __init__(self, spec="", prereleases=None):  argument
111         self._prereleases = prereleases
116             ", prereleases={0!r}".format(self.prereleases)
184     def prereleases(self):  member in _IndividualSpecifier
188     @prereleases.setter
189     def prereleases(self, value):  member in _IndividualSpecifier
197     def contains(self, item, prereleases=None):  argument
201         if prereleases is None:
202             prereleases = self.prereleases
211         if normalized_item.is_prerelease and not prereleases:
219     def filter(self, iterable, prereleases=None):  argument
225         kw = {"prereleases": prereleases if prereleases is not None else True}
237                     prereleases or self.prereleases
279     def __init__(self, spec="", prereleases=None):  argument
281         super(LegacySpecifier, self).__init__(spec, prereleases)
600     def prereleases(self):  member in Specifier
625     @prereleases.setter
626     def prereleases(self, value):  member in Specifier
666     def __init__(self, specifiers="", prereleases=None):  argument
687         self._prereleases = prereleases
692             ", prereleases={0!r}".format(self.prereleases)
758     def prereleases(self):  member in SpecifierSet
774         return any(s.prereleases for s in self._specs)
776     @prereleases.setter
777     def prereleases(self, value):  member in SpecifierSet
785     def contains(self, item, prereleases=None):  argument
795         if prereleases is None:
796             prereleases = self.prereleases
804         if not prereleases and item.is_prerelease:
811         return all(s.contains(item, prereleases=prereleases) for s in self._specs)
816         prereleases=None,  # type: Optional[bool]  argument
823         if prereleases is None:
824             prereleases = self.prereleases
831                 iterable = spec.filter(iterable, prereleases=bool(prereleases))
853                 if parsed_version.is_prerelease and not prereleases:
861             if not filtered and found_prereleases and prereleases is None: