Fix unidiomatic-typecheck

pyss3/__init__.py

@@ -528,7 +528,7 @@ def __get_category__(self, name):
 
         If category name doesn't exist, creates a new one.
         """
-        if type(name) is str:
+        if isinstance(name, str):
             name = name.lower()
         try:
             return self.__categories_index__[name]
@@ -1077,7 +1077,7 @@ def get_category_index(self, name):
         :rtype: int
         """
         try:
-            if type(name) is str:
+            if isinstance(name, str):
                 name = name.lower()
             return self.__categories_index__[name]
         except KeyError:
@@ -1094,7 +1094,7 @@ def get_category_name(self, index):
         :rtype: str
         """
         try:
-            if type(index) == list:
+            if isinstance(index, list):
                 index = index[0]
             return self.__categories__[index][NAME]
         except IndexError:

pyss3/util.py

@@ -1283,10 +1283,10 @@ def kfold_cross_validation(
         if not clf or not clf.__categories__:
             raise EmptyModelError
 
-        if type(k) is not int or k < 2:
+        if not isinstance(k, int) or k < 2:
             raise ValueError(ERROR_IKV)
 
-        if n_grams is not None and (type(n_grams) is not int or n_grams < 1):
+        if n_grams is not None and (not isinstance(n_grams, int) or n_grams < 1):
             raise ValueError(ERROR_INGV)
 
         Evaluation.set_classifier(clf)
@@ -1454,7 +1454,7 @@ def grid_search(
         :rtype: tuple
         :raises: InvalidCategoryError, EmptyModelError, ValueError, TypeError
         """
-        if k_fold is not None and type(k_fold) is not int:
+        if k_fold is not None and not isinstance(k_fold, int):
             raise TypeError(ERROR_IKT)
 
         from . import SS3