Removes python3.6 support

.circleci/config.yml

@@ -21,10 +21,6 @@ jobs:
 workflows:
   unit-test-workflow:
     jobs:
-      - test:
-          name: build-py36
-          python-version: '3.6'
-          task: tests
       - test:
           name: build-py37
           python-version: '3.7'
@@ -49,10 +45,6 @@ workflows:
           name: pre-commit
           python-version: '3.9'
           task: pre-commit
-      - test:
-          name: dask-py36
-          python-version: '3.6'
-          task: dask
       - test:
           name: dask-py37
           python-version: '3.7'
@@ -65,10 +57,6 @@ workflows:
           name: spark-py38
           python-version: '3.8'
           task: pyspark
-      - test:
-          name: integrations-py36
-          python-version: '3.6'
-          task: integrations
       - test:
           name: integrations-py37
           python-version: '3.7'

build_conda.sh

@@ -5,7 +5,7 @@ CONDA_HOME=$HOME/anaconda3
 # conda activate && anaconda login
 pkg='sf-hamilton'
 # adjust the Python versions you would like to build
-array=( 3.6 3.7 3.8 3.9 3.10 3.11 )
+array=(3.7 3.8 3.9 3.10 3.11 )
 echo "Building conda package ..."
 cd ~
 # this will create a ~/sf-hamilton directory with metadata to build the package.

graph_adapter_tests/h_async/test_h_async.py

@@ -82,13 +82,8 @@ async def test_driver_end_to_end_telemetry(send_event_json):
     }
     # to ensure the last telemetry invocation finishes executing
     # get all tasks -- and the current task, and await all others.
-    try:
-        # only works for 3.7+
-        tasks = asyncio.all_tasks()
-        current_task = asyncio.current_task()
-        await asyncio.gather(*[t for t in tasks if t != current_task])
-    except AttributeError:
-        # required for 3.6
-        await asyncio.sleep(1)
+    tasks = asyncio.all_tasks()
+    current_task = asyncio.current_task()
+    await asyncio.gather(*[t for t in tasks if t != current_task])
     assert send_event_json.called
     assert len(send_event_json.call_args_list) == 2

graph_adapter_tests/h_dask/test_h_dask.py

@@ -1,5 +1,3 @@
-import sys
-
 import pandas as pd
 import pytest
 from dask.delayed import delayed
@@ -46,7 +44,6 @@ def test_dask_graph_adapter_simple(client):
     # TODO: do some more asserting?
 
 
-@pytest.mark.skipif(sys.version_info < (3, 7), reason="requires python3.7")
 def test_smoke_screen_module(client):
     config = {"region": "US"}
     dr = driver.Driver(config, smoke_screen_module, adapter=h_dask.DaskGraphAdapter(client))

hamilton/base.py

@@ -72,12 +72,8 @@ def index_key_name(pd_object: Union[pd.DataFrame, pd.Series]) -> str:
 
         def get_parent_time_index_type():
             """Helper to pull the right time index parent class."""
-            if hasattr(
-                pd_extension, "NDArrayBackedExtensionIndex"
-            ):  # for python 3.7+ & pandas >= 1.2
+            if hasattr(pd_extension, "NDArrayBackedExtensionIndex"):
                 index_type = pd_extension.NDArrayBackedExtensionIndex
-            elif hasattr(pd_extension, "ExtensionIndex"):  # for python 3.6 & pandas <= 1.2
-                index_type = pd_extension.ExtensionIndex
             else:
                 index_type = None  # weird case, but not worth breaking for.
             return index_type

requirements.txt

@@ -1,4 +1,3 @@
-dataclasses; python_version < '3.7'
 numpy
 pandas
 typing_inspect

setup.py

@@ -55,7 +55,6 @@ def load_requirements():
         "Natural Language :: English",
         "License :: OSI Approved :: BSD License",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",

tests/test_end_to_end.py

@@ -1,5 +1,3 @@
-import sys
-
 import pytest
 
 import hamilton.driver
@@ -34,7 +32,6 @@ def test_data_quality_workflow_fails():
         )
 
 
-@pytest.mark.skipif(sys.version_info < (3, 7), reason="requires python3.7")
 def test_smoke_screen_module():
     config = {"region": "US"}
     dr = hamilton.driver.Driver(config, tests.resources.smoke_screen_module)