496     def _dict_find_key_by_value(d, dst):  argument
498             if value == dst:
500         raise KeyError(dst)
2080     def add_needed_dep(self, dst):  argument
2081         assert dst not in self.deps_needed_hidden
2082         assert self not in dst.users_needed_hidden
2083         self.deps_needed.add(dst)
2084         dst.users_needed.add(self)
2087     def add_dlopen_dep(self, dst):  argument
2088         assert dst not in self.deps_dlopen_hidden
2089         assert self not in dst.users_dlopen_hidden
2090         self.deps_dlopen.add(dst)
2091         dst.users_dlopen.add(self)
2094     def hide_needed_dep(self, dst):  argument
2095         self.deps_needed.remove(dst)
2096         dst.users_needed.remove(self)
2097         self.deps_needed_hidden.add(dst)
2098         dst.users_needed_hidden.add(self)
2101     def hide_dlopen_dep(self, dst):  argument
2102         self.deps_dlopen.remove(dst)
2103         dst.users_dlopen.remove(self)
2104         self.deps_dlopen_hidden.add(dst)
2105         dst.users_dlopen_hidden.add(self)
2166     def has_dep(self, dst):  argument
2167         return (dst in self.deps_needed or dst in self.deps_needed_hidden or
2168                 dst in self.deps_dlopen or dst in self.deps_dlopen_hidden)
2171     def has_user(self, dst):  argument
2172         return (dst in self.users_needed or dst in self.users_needed_hidden or
2173                 dst in self.users_dlopen or dst in self.users_dlopen_hidden)
2306             for src, dst in itertools.product(srcs, dsts):
2307                 src.add_dlopen_dep(dst)