Avoid the horrendous line break for type hints

Author: uranusjr

src/pip/_internal/resolution/resolvelib/factory.py

@@ -47,6 +47,7 @@
 
     C = TypeVar("C")
     Cache = Dict[Link, C]
+    VersionCandidates = Dict[_BaseVersion, Candidate]
 
 
 class Factory(object):
@@ -130,8 +131,7 @@ def iter_found_candidates(self, ireq, extras):
         # requirement needs to return only one candidate per version, so we
         # implement that logic here so that requirements using this helper
         # don't all have to do the same thing later.
-        version_candidates = collections.OrderedDict(
-        )  # type: Dict[_BaseVersion, Candidate]
+        candidates = collections.OrderedDict()  # type: VersionCandidates
 
         # Yield the installed version, if it matches, unless the user
         # specified `--force-reinstall`, when we want the version from
@@ -149,7 +149,7 @@ def iter_found_candidates(self, ireq, extras):
                     extras=extras,
                     parent=ireq,
                 )
-                version_candidates[installed_version] = candidate
+                candidates[installed_version] = candidate
 
         found = self.finder.find_best_candidate(
             project_name=ireq.req.name,
@@ -166,9 +166,9 @@ def iter_found_candidates(self, ireq, extras):
                 name=name,
                 version=ican.version,
             )
-            version_candidates[ican.version] = candidate
+            candidates[ican.version] = candidate
 
-        return six.itervalues(version_candidates)
+        return six.itervalues(candidates)
 
     def make_requirement_from_install_req(self, ireq):
         # type: (InstallRequirement) -> Requirement