```too-few-public-methods`` is not reported for dataclasses created with options.

Close #2488

3 files changed, 14 insertions, 1 deletions

diff --git a/ChangeLog b/ChangeLog
index fdbedcbd5..0e558d541 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -7,6 +7,10 @@ What's New in Pylint 2.2?
 
 Release date: TBA
 
+   * ```too-few-public-methods`` is not reported for dataclasses created with options.
+
+     Close #2488
+
    * Remove wrong modules from 'bad-python3-import'.
 
      Close #2453
diff --git a/pylint/checkers/utils.py b/pylint/checkers/utils.py
index 4c163df58..e0b36bb7b 100644
--- a/pylint/checkers/utils.py
+++ b/pylint/checkers/utils.py
@@ -1014,14 +1014,18 @@ def is_dataclass(node: astroid.ClassDef) -> bool:
     """
     if not node.decorators:
         return False
+
+    root_locals = node.root().locals
     for decorator in node.decorators.nodes:
+        if isinstance(decorator, astroid.Call):
+            decorator = decorator.func
         if not isinstance(decorator, (astroid.Name, astroid.Attribute)):
             continue
         if isinstance(decorator, astroid.Name):
             name = decorator.name
         else:
             name = decorator.attrname
-        if name == DATACLASS_DECORATOR and DATACLASS_DECORATOR in node.root().locals:
+        if name == DATACLASS_DECORATOR and DATACLASS_DECORATOR in root_locals:
             return True
     return False
 
diff --git a/pylint/test/functional/too_few_public_methods_37.py b/pylint/test/functional/too_few_public_methods_37.py
index aa57332e1..56b275f73 100644
--- a/pylint/test/functional/too_few_public_methods_37.py
+++ b/pylint/test/functional/too_few_public_methods_37.py
@@ -12,3 +12,8 @@ class ScheduledTxSearchModel:
 @dataclass
 class ScheduledTxSearchModelOne:
     date = None
+
+
+@dataclass(frozen=True)
+class Test:
+    some_integer: int