Apply changes to fix python linting errors

7 files changed, 12 insertions, 9 deletions

diff --git a/src/etc/dec2flt_table.py b/src/etc/dec2flt_table.py
index aa5188d96c3..9264a8439bb 100644..100755
--- a/src/etc/dec2flt_table.py
+++ b/src/etc/dec2flt_table.py
@@ -14,8 +14,7 @@ Adapted from Daniel Lemire's fast_float ``table_generation.py``,
 available here: <https://github.com/fastfloat/fast_float/blob/main/script/table_generation.py>.
 """
 from __future__ import print_function
-from math import ceil, floor, log, log2
-from fractions import Fraction
+from math import ceil, floor, log
 from collections import deque
 
 HEADER = """
@@ -97,7 +96,6 @@ def print_proper_powers(min_exp, max_exp, bias):
     print('#[rustfmt::skip]')
     typ = '[(u64, u64); N_POWERS_OF_FIVE]'
     print('pub static POWER_OF_FIVE_128: {} = ['.format(typ))
-    lo_mask = (1 << 64) - 1
     for c, exp in powers:
         hi = '0x{:x}'.format(c // (1 << 64))
         lo = '0x{:x}'.format(c % (1 << 64))
diff --git a/src/etc/gdb_load_rust_pretty_printers.py b/src/etc/gdb_load_rust_pretty_printers.py
index 491b6ba9e9e..e05039ce474 100644
--- a/src/etc/gdb_load_rust_pretty_printers.py
+++ b/src/etc/gdb_load_rust_pretty_printers.py
@@ -4,6 +4,7 @@ from os import path
 self_dir = path.dirname(path.realpath(__file__))
 sys.path.append(self_dir)
 
+# ruff: noqa: E402
 import gdb
 import gdb_lookup
 
diff --git a/src/etc/generate-deriving-span-tests.py b/src/etc/generate-deriving-span-tests.py
index d38f5add747..d61693460bc 100755
--- a/src/etc/generate-deriving-span-tests.py
+++ b/src/etc/generate-deriving-span-tests.py
@@ -102,7 +102,9 @@ for (trait, supers, errs) in [('Clone', [], 1),
     traits[trait] = (ALL, supers, errs)
 
 for (trait, (types, super_traits, error_count)) in traits.items():
-    mk = lambda ty: create_test_case(ty, trait, super_traits, error_count)
+    def mk(ty, t=trait, st=super_traits, ec=error_count):
+        return create_test_case(ty, t, st, ec)
+
     if types & ENUM:
         write_file(trait + '-enum', mk(ENUM_TUPLE))
         write_file(trait + '-enum-struct-variant', mk(ENUM_STRUCT))
diff --git a/src/etc/htmldocck.py b/src/etc/htmldocck.py
index c97fb4b8054..eade9e04559 100644..100755
--- a/src/etc/htmldocck.py
+++ b/src/etc/htmldocck.py
@@ -144,7 +144,7 @@ VOID_ELEMENTS = {'area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input', 'ke
 
 # Python 2 -> 3 compatibility
 try:
-    unichr
+    unichr # noqa: B018 FIXME: py2
 except NameError:
     unichr = chr
 
@@ -348,7 +348,9 @@ class CachedFiles(object):
             try:
                 tree = ET.fromstringlist(f.readlines(), CustomHTMLParser())
             except Exception as e:
-                raise RuntimeError('Cannot parse an HTML file {!r}: {}'.format(path, e))
+                raise RuntimeError( # noqa: B904 FIXME: py2
+                    'Cannot parse an HTML file {!r}: {}'.format(path, e)
+                )
             self.trees[path] = tree
             return self.trees[path]
 
@@ -422,7 +424,7 @@ def check_snapshot(snapshot_name, actual_tree, normalize_to_text):
         if bless:
             expected_str = None
         else:
-            raise FailedCheck('No saved snapshot value')
+            raise FailedCheck('No saved snapshot value') # noqa: B904 FIXME: py2
 
     if not normalize_to_text:
         actual_str = ET.tostring(actual_tree).decode('utf-8')
diff --git a/src/etc/lldb_batchmode.py b/src/etc/lldb_batchmode.py
index fc355c87b52..db1e0035ea0 100644
--- a/src/etc/lldb_batchmode.py
+++ b/src/etc/lldb_batchmode.py
@@ -124,7 +124,7 @@ def start_breakpoint_listener(target):
                         breakpoint = lldb.SBBreakpoint.GetBreakpointFromEvent(event)
                         print_debug("breakpoint added, id = " + str(breakpoint.id))
                         new_breakpoints.append(breakpoint.id)
-        except:
+        except BaseException: # explicitly catch ctrl+c/sysexit
             print_debug("breakpoint listener shutting down")
 
     # Start the listener and let it run as a daemon
diff --git a/src/etc/lldb_providers.py b/src/etc/lldb_providers.py
index c4381e202b9..4c86b214646 100644
--- a/src/etc/lldb_providers.py
+++ b/src/etc/lldb_providers.py
@@ -1,6 +1,6 @@
 import sys
 
-from lldb import SBValue, SBData, SBError, eBasicTypeLong, eBasicTypeUnsignedLong, \
+from lldb import SBData, SBError, eBasicTypeLong, eBasicTypeUnsignedLong, \
     eBasicTypeUnsignedChar
 
 # from lldb.formatters import Logger
diff --git a/src/etc/test-float-parse/runtests.py b/src/etc/test-float-parse/runtests.py
index cf7279534dc..cf7279534dc 100644..100755
--- a/src/etc/test-float-parse/runtests.py
+++ b/src/etc/test-float-parse/runtests.py