Fix some issues reported by ruff

setup_validate.py

@@ -11,7 +11,6 @@
 # This software is licensed under the terms of the BSD license.
 # http://opensource.org/licenses/BSD-3-Clause
 
-import sys
 from distutils.core import setup
 from validate import __version__ as VERSION
 

src/configobj/__init__.py

@@ -297,7 +297,7 @@ def __init__(self, section):
 
     def interpolate(self, key, value):
         # short-cut
-        if not self._cookie in value:
+        if self._cookie not in value:
             return value
 
         def recursive_interpolate(key, value, section, backtrail):
@@ -528,7 +528,7 @@ def _interpolate(self, key, value):
         except AttributeError:
             # not yet: first time running _interpolate(), so pick the engine
             name = self.main.interpolation
-            if name == True:  # note that "if name:" would be incorrect here
+            if name is True:  # note that "if name:" would be incorrect here
                 # backwards-compatibility: interpolation=True means use default
                 name = DEFAULT_INTERPOLATION
             name = name.lower()  # so that "Template", "template", etc. all work
@@ -948,9 +948,9 @@ def as_bool(self, key):
         0
         """
         val = self[key]
-        if val == True:
+        if val is True:
             return True
-        elif val == False:
+        elif val is False:
             return False
         else:
             try:
@@ -2237,7 +2237,7 @@ def validate_entry(entry, spec, val, missing, ret_true, ret_false):
             if entry in ('__many__', '___many___'):
                 # reserved names
                 continue
-            if (not entry in section.scalars) or (entry in section.defaults):
+            if (entry not in section.scalars) or (entry in section.defaults):
                 # missing entries
                 # or entries from defaults
                 missing = True
@@ -2300,9 +2300,9 @@ def validate_entry(entry, spec, val, missing, ret_true, ret_false):
                 section.inline_comments[entry] = configspec.inline_comments.get(entry, '')
             check = self.validate(validator, preserve_errors=preserve_errors, copy=copy, section=section[entry])
             out[entry] = check
-            if check == False:
+            if check is False:
                 ret_true = False
-            elif check == True:
+            elif check is True:
                 ret_false = False
             else:
                 ret_true = False
@@ -2421,15 +2421,15 @@ def flatten_errors(cfg, res, levels=None, results=None):
         # first time called
         levels = []
         results = []
-    if res == True:
+    if res is True:
         return sorted(results)
-    if res == False or isinstance(res, Exception):
+    if res is False or isinstance(res, Exception):
         results.append((levels[:], None, res))
         if levels:
             levels.pop()
         return sorted(results)
     for (key, val) in list(res.items()):
-        if val == True:
+        if val is True:
             continue
         if isinstance(cfg.get(key), dict):
             # Go down one level

src/configobj/validate.py

@@ -163,7 +163,6 @@
 
 import re
 import sys
-from pprint import pprint
 
 
 _list_arg = re.compile(r'''
@@ -264,7 +263,8 @@ def dottedQuadToNum(ip):
     """
 
     # import here to avoid it when ip_addr values are not used
-    import socket, struct
+    import socket
+    import struct
 
     try:
         return struct.unpack('!L',
@@ -314,7 +314,8 @@ def numToDottedQuad(num):
     """
 
     # import here to avoid it when ip_addr values are not used
-    import socket, struct
+    import socket
+    import struct
 
     # no need to intercept here, 4294967295L is fine
     if num > int(4294967295) or num < 0:
@@ -653,7 +654,7 @@ def _parse_check(self, check):
                 keymatch = self._key_arg.match(arg)
                 if keymatch:
                     val = keymatch.group(2)
-                    if not val in ("'None'", '"None"'):
+                    if val not in ("'None'", '"None"'):
                         # Special case a quoted None
                         val = self._unquote(val)
                     fun_kwargs[keymatch.group(1)] = val
@@ -740,7 +741,7 @@ def _is_num_param(names, values, to_float=False):
         elif isinstance(val, (int, float, str)):
             try:
                 out_params.append(fun(val))
-            except ValueError as e:
+            except ValueError:
                 raise VdtParamError(name, val)
         else:
             raise VdtParamError(name, val)
@@ -919,9 +920,9 @@ def is_boolean(value):
     # we do an equality test rather than an identity test
     # this ensures Python 2.2 compatibilty
     # and allows 0 and 1 to represent True and False
-    if value == False:
+    if value is False:
         return False
-    elif value == True:
+    elif value is True:
         return True
     else:
         raise VdtTypeError(value)
@@ -1301,7 +1302,7 @@ def is_option(value, *options):
     """
     if not isinstance(value, str):
         raise VdtTypeError(value)
-    if not value in options:
+    if value not in options:
         raise VdtValueError(value)
     return value
 

src/tests/test_configobj.py

@@ -508,7 +508,7 @@ def test_unicode_handling():
     file_like.seek(0)
     uc2 = ConfigObj(file_like)
     assert uc2 == uc
-    assert uc2.filename == None
+    assert uc2.filename is None
     assert uc2.newlines == '\r'
 
 

src/tests/test_validate.py

@@ -2,7 +2,7 @@
 
 from configobj import ConfigObj
 import pytest
-from configobj.validate import Validator, VdtValueTooSmallError
+from configobj.validate import VdtValueTooSmallError
 
 
 class TestImporting(object):

src/tests/test_validate_errors.py

@@ -69,14 +69,14 @@ def test_invalid_lines_with_percents(tmpdir, specpath):
     ini = tmpdir.join('config.ini')
     ini.write('extra: %H:%M\n')
     with pytest.raises(ParseError):
-        conf = ConfigObj(str(ini), configspec=specpath, file_error=True)
+        ConfigObj(str(ini), configspec=specpath, file_error=True)
 
 
 def test_no_parent(tmpdir, specpath):
     ini = tmpdir.join('config.ini')
     ini.write('[[haha]]')
     with pytest.raises(NestingError):
-        conf = ConfigObj(str(ini), configspec=specpath, file_error=True)
+        ConfigObj(str(ini), configspec=specpath, file_error=True)
 
 
 def test_re_dos(val):