D11206: typing: convert an annotation to an assertion in commands.py

[mharbison72 (Matt Harbison)]

mharbison72 created this revision.
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REVISION SUMMARY
  Pytype was happy with the annotation at one point, but 2021.04.15 now complains.

REPOSITORY
  rHG Mercurial

BRANCH
  default

REVISION DETAIL
  https://phab.mercurial-scm.org/D11206

AFFECTED FILES
  mercurial/commands.py

CHANGE DETAILS

diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -3341,7 +3341,8 @@
                 )
             # checking that newnodes exist because old state files won't have it
             elif statedata.get(b'newnodes') is not None:
-                nn = statedata[b'newnodes']  # type: List[bytes]
+                nn = statedata[b'newnodes']
+                assert isinstance(nn, list)  # list of bytes
                 nn.append(node)
 
     # remove state when we complete successfully



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