deprecate dsl.Condition

sdk/python/kfp/dsl/tasks_group.py

@@ -16,6 +16,7 @@
 import copy
 import enum
 from typing import List, Optional, Union
+import warnings
 
 from kfp.dsl import for_loop
 from kfp.dsl import pipeline_channel
@@ -161,7 +162,7 @@ def __init__(
         self.condition: List[pipeline_channel.BinaryOperation] = condition
 
 
-class Condition(_ConditionBase):
+class If(_ConditionBase):
     """A class for creating a conditional control flow "if" block within a
     pipeline.
 
@@ -173,7 +174,7 @@ class Condition(_ConditionBase):
       ::
 
         task1 = my_component1(...)
-        with dsl.Condition(task1.output=='pizza', 'pizza-condition'):
+        with dsl.If(task1.output=='pizza', 'pizza-condition'):
             task2 = my_component2(...)
     """
 
@@ -195,22 +196,20 @@ def __init__(
         self._negated_upstream_conditions = [copied_condition]
 
 
-class If(Condition):
-    """A class for creating a conditional control flow "if" block within a
-    pipeline. Identical to dsl.Condition.
-
-    Args:
-        condition: A comparative expression that evaluates to True or False. At least one of the operands must be an output from an upstream task or a pipeline parameter.
-        name: The name of the condition group.
-
-    Example:
-      ::
+class Condition(If):
+    """Deprecated.
 
-        task1 = my_component1(...)
-        with dsl.If(task1.output=='pizza', 'pizza-condition'):
-            task2 = my_component2(...)
+    Use dsl.If instead.
     """
 
+    def __enter__(self):
+        super().__enter__()
+        warnings.warn(
+            'dsl.Condition is deprecated. Please use dsl.If instead.',
+            category=DeprecationWarning,
+            stacklevel=2)
+        return self
+
 
 class Elif(_ConditionBase):
     """A class for creating a conditional control flow "else if" block within a

sdk/python/kfp/dsl/tasks_group_test.py

@@ -12,13 +12,15 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from absl.testing import parameterized
+import unittest
+
+from kfp import dsl
 from kfp.dsl import for_loop
 from kfp.dsl import pipeline_context
 from kfp.dsl import tasks_group
 
 
-class ParallelForTest(parameterized.TestCase):
+class ParallelForTest(unittest.TestCase):
 
     def test_basic(self):
         loop_items = ['pizza', 'hotdog', 'pasta']
@@ -58,3 +60,21 @@ def test_parallelfor_invalid_parallelism(self):
                                     'ParallelFor parallelism must be >= 0.'):
             with pipeline_context.Pipeline('pipeline') as p:
                 tasks_group.ParallelFor(items=loop_items, parallelism=-1)
+
+
+class TestConditionDeprecated(unittest.TestCase):
+
+    def test(self):
+
+        @dsl.component
+        def foo() -> str:
+            return 'foo'
+
+        @dsl.pipeline
+        def my_pipeline(string: str):
+            with self.assertWarnsRegex(
+                    DeprecationWarning,
+                    'dsl\.Condition is deprecated\. Please use dsl\.If instead\.'
+            ):
+                with dsl.Condition(string == 'text'):
+                    foo()