various python neatness cleanups

All changes were created by running

"pyupgrade --py3-only"

and committing the results. Although this has been performed in the
past, newer versions of pyupgrade can automatically catch more
opportunities, notably list comprehensions can use generators instead,
in the following cases:
- unpacking into function arguments as function(*generator)
- unpacking into assignments of the form x, y = generator
- as the argument to some builtin functions such as min/max/sorted

Also catch a few creeping cases of new code added using older styles.

1 files changed, 3 insertions, 3 deletions

diff --git a/mesonbuild/mtest.py b/mesonbuild/mtest.py
index fd175ba..f877ec8 100644
--- a/mesonbuild/mtest.py
+++ b/mesonbuild/mtest.py
@@ -1660,7 +1660,7 @@ class TestHarness:
             # wrapper script.
             sys.exit(125)
 
-        self.name_max_len = max([uniwidth(self.get_pretty_suite(test)) for test in tests])
+        self.name_max_len = max(uniwidth(self.get_pretty_suite(test)) for test in tests)
         startdir = os.getcwd()
         try:
             os.chdir(self.options.wd)
@@ -1668,8 +1668,8 @@ class TestHarness:
             for i in range(self.options.repeat):
                 runners.extend(self.get_test_runner(test) for test in tests)
                 if i == 0:
-                    self.duration_max_len = max([len(str(int(runner.timeout or 99)))
-                                                 for runner in runners])
+                    self.duration_max_len = max(len(str(int(runner.timeout or 99)))
+                                                 for runner in runners)
                     # Disable the progress report if it gets in the way
                     self.need_console = any(runner.console_mode is not ConsoleUser.LOGGER
                                              for runner in runners)