pre-commit: run flake8 on more Python files

pre-commit currently runs flake8 only on `gdb/python/**/*.py`.  There
are more files we can run it on, without running it on all the testsuite
files.  Add:

 - gdb/gdb-gdb.py.in
 - gdb/*.py
 - gdb/testsuite/*.py

Fix the new errors that popped up:

    gdb/copyright.py:29:21: W605 invalid escape sequence '\*'
    gdb/copyright.py:29:29: W605 invalid escape sequence '\*'
    gdb/copyright.py:29:38: W605 invalid escape sequence '\*'
    gdb/copyright.py:29:46: W605 invalid escape sequence '\*'
    gdb/copyright.py:34:1: F401 'datetime' imported but unused
    gdb/testsuite/analyze-racy-logs.py:150:9: E722 do not use bare 'except'

Change-Id: Ia864c22d4f170d4e18ce3beb06a86c49966654b2
Approved-By: Tom Tromey <tom@tromey.com>

2 files changed, 13 insertions, 14 deletions

diff --git a/gdb/copyright.py b/gdb/copyright.py
index 2c9ea3c..1a155b9 100755
--- a/gdb/copyright.py
+++ b/gdb/copyright.py
@@ -17,21 +17,20 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-"""copyright.py
-
-This script updates the list of years in the copyright notices in
-most files maintained by the GDB project.
-
-Usage: cd src/gdb && ./copyright.py
-
-Always review the output of this script before committing it!
-A useful command to review the output is:
-    % filterdiff -x \*.c -x \*.cc -x \*.h -x \*.exp updates.diff
-This removes the bulk of the changes which are most likely to be correct.
-"""
+# This script updates the list of years in the copyright notices in
+# most files maintained by the GDB project.
+#
+# Usage: cd src/gdb && ./copyright.py
+#
+# Always review the output of this script before committing it!
+#
+# A useful command to review the output is:
+#
+#     $ filterdiff -x \*.c -x \*.cc -x \*.h -x \*.exp updates.diff
+#
+# This removes the bulk of the changes which are most likely to be correct.
 
 import argparse
-import datetime
 import locale
 import os
 import os.path
diff --git a/gdb/testsuite/analyze-racy-logs.py b/gdb/testsuite/analyze-racy-logs.py
index 5a3f90e..3863bd0 100755
--- a/gdb/testsuite/analyze-racy-logs.py
+++ b/gdb/testsuite/analyze-racy-logs.py
@@ -147,7 +147,7 @@ def identify_racy_tests():
     for s1, s2 in ignore_relations.items():
         try:
             ignored_tests |= all_tests[s1] & all_tests[s2]
-        except:
+        except Exception:
             continue
 
     racy_tests: set[str] = set()