Avoid six in plugin code (#10873)

Avoid six in plugin code.

plugins/filter/from_ini.py

@@ -45,10 +45,10 @@ _value:
 """
 
 
+from io import StringIO
+from configparser import ConfigParser
+
 from ansible.errors import AnsibleFilterError
-from ansible.module_utils.six import string_types
-from ansible.module_utils.six.moves import StringIO
-from ansible.module_utils.six.moves.configparser import ConfigParser
 
 
 class IniParser(ConfigParser):
@@ -73,7 +73,7 @@ class IniParser(ConfigParser):
 def from_ini(obj):
     ''' Read the given string as INI file and return a dict '''
 
-    if not isinstance(obj, string_types):
+    if not isinstance(obj, str):
         raise AnsibleFilterError(f'from_ini requires a str, got {type(obj)}')
 
     parser = IniParser()

plugins/filter/lists_mergeby.py

@@ -196,7 +196,6 @@ _value:
 """
 
 from ansible.errors import AnsibleFilterError
-from ansible.module_utils.six import string_types
 from collections.abc import Mapping, Sequence
 from ansible.utils.vars import merge_hash
 
@@ -257,7 +256,7 @@ def lists_mergeby(*terms, **kwargs):
 
     index = terms[-1]
 
-    if not isinstance(index, string_types):
+    if not isinstance(index, str):
         msg = ("First argument after the lists for community.general.lists_mergeby must be string. "
                "%s is %s")
         raise AnsibleFilterError(msg % (index, type(index)))

plugins/filter/random_mac.py

@@ -45,14 +45,13 @@ import re
 from random import Random, SystemRandom
 
 from ansible.errors import AnsibleFilterError
-from ansible.module_utils.six import string_types
 
 
 def random_mac(value, seed=None):
     ''' takes string prefix, and return it completed with random bytes
         to get a complete 6 bytes MAC address '''
 
-    if not isinstance(value, string_types):
+    if not isinstance(value, str):
         raise AnsibleFilterError('Invalid value type (%s) for random_mac (%s)' %
                                  (type(value), value))
 

plugins/filter/to_ini.py

@@ -49,11 +49,10 @@ _value:
   type: string
 """
 
-
-from ansible.errors import AnsibleFilterError
 from collections.abc import Mapping
-from ansible.module_utils.six.moves import StringIO
-from ansible.module_utils.six.moves.configparser import ConfigParser
+from configparser import ConfigParser
+from io import StringIO
+from ansible.errors import AnsibleFilterError
 
 
 class IniParser(ConfigParser):

plugins/filter/to_prettytable.py

@@ -117,7 +117,6 @@ except ImportError:
 
 from ansible.errors import AnsibleFilterError
 from ansible.module_utils.common.text.converters import to_text
-from ansible.module_utils.six import string_types
 
 
 class TypeValidationError(AnsibleFilterError):
@@ -128,7 +127,7 @@ class TypeValidationError(AnsibleFilterError):
         expected: Description of expected type
     """
     def __init__(self, obj, expected):
-        type_name = "string" if isinstance(obj, string_types) else type(obj).__name__
+        type_name = "string" if isinstance(obj, str) else type(obj).__name__
         super().__init__(f"Expected {expected}, got a {type_name}")
 
 
@@ -157,7 +156,7 @@ def _validate_list_param(param, param_name, ensure_strings=True):
 
     if ensure_strings:
         for item in param:
-            if not isinstance(item, string_types):
+            if not isinstance(item, str):
                 # Maintain original error message format
                 if param_name == "column_order":
                     error_msg = "a string for column name"
@@ -183,7 +182,7 @@ def _match_key(item_dict, lookup_key):
         return lookup_key
 
     # Try boolean conversion for 'true'/'false' strings
-    if isinstance(lookup_key, string_types):
+    if isinstance(lookup_key, str):
         if lookup_key.lower() == 'true' and True in item_dict:
             return True
         if lookup_key.lower() == 'false' and False in item_dict:
@@ -335,11 +334,11 @@ def to_prettytable(data, *args, **kwargs):
     # Validate column_alignments keys and values
     for key, value in column_alignments.items():
         # Check that keys are strings
-        if not isinstance(key, string_types):
+        if not isinstance(key, str):
             raise TypeValidationError(key, "a string for column_alignments key")
 
         # Check that values are strings
-        if not isinstance(value, string_types):
+        if not isinstance(value, str):
             raise TypeValidationError(value, "a string for column_alignments value")
 
         # Check that values are valid alignments
@@ -391,7 +390,7 @@ def to_prettytable(data, *args, **kwargs):
                     row.append(item.get(matched_key, ""))
                 else:
                     # Try case-insensitive lookup as last resort
-                    lower_col = col.lower() if isinstance(col, string_types) else str(col).lower()
+                    lower_col = col.lower() if isinstance(col, str) else str(col).lower()
                     if lower_col in reverse_key_map:
                         row.append(item.get(reverse_key_map[lower_col], ""))
                     else:

plugins/filter/unicode_normalize.py

@@ -49,7 +49,6 @@ _value:
 from unicodedata import normalize
 
 from ansible.errors import AnsibleFilterError
-from ansible.module_utils.six import text_type
 
 try:
     from ansible.errors import AnsibleTypeError
@@ -69,7 +68,7 @@ def unicode_normalize(data, form='NFC'):
         A normalized unicode string of the specified 'form'.
     """
 
-    if not isinstance(data, text_type):
+    if not isinstance(data, str):
         raise AnsibleTypeError("%s is not a valid input type" % type(data))
 
     if form not in ('NFC', 'NFD', 'NFKC', 'NFKD'):