diff mercurial/windows.py @ 44470:9d2b2df2c2ba

cleanup: run pyupgrade on our source tree to clean up varying things

Built with:

    hg files 'set:**.py - mercurial/thirdparty/** - "contrib/python-zstandard/**" - hgext/fsmonitor/pywatchman/**' | xargs pyupgrade --keep-percent-format --keep-extraneous-parens

and then blackened. pyupgrade comes from
https://github.com/asottile/pyupgrade with a patch to let me preserve
extraneous parens (which we use for marking strings that shouldn't be
translated), and lets us clean up a bunch of idioms that have cruftily
accumulated over the years.

# skip-blame no-op automated code cleanups

Differential Revision: https://phab.mercurial-scm.org/D8255

--- a/mercurial/windows.py	Fri Mar 06 10:52:44 2020 +0100
+++ b/mercurial/windows.py	Fri Mar 06 13:27:41 2020 -0500
@@ -535,13 +535,11 @@
         cache = dircache.get(dir, None)
         if cache is None:
             try:
-                dmap = dict(
-                    [
-                        (normcase(n), s)
-                        for n, k, s in listdir(dir, True)
-                        if getkind(s.st_mode) in _wantedkinds
-                    ]
-                )
+                dmap = {
+                    normcase(n): s
+                    for n, k, s in listdir(dir, True)
+                    if getkind(s.st_mode) in _wantedkinds
+                }
             except OSError as err:
                 # Python >= 2.5 returns ENOENT and adds winerror field
                 # EINVAL is raised if dir is not a directory.