Upgrade pylint to 2.0.1 (#15683)

* Upgrade pylint to 2.0.1

* Pylint 2 bad-whitespace fix

* Pylint 2 possibly-unused-variable fixes

* Pylint 2 try-except-raise fixes

* Disable pylint fixme for todoist for now

https://github.com/PyCQA/pylint/pull/2320

* Disable pylint 2 useless-return for now

https://github.com/PyCQA/pylint/issues/2300

* Disable pylint 2 invalid-name for type variables for now

https://github.com/PyCQA/pylint/issues/1290

* Disable pylint 2 not-an-iterable for now

https://github.com/PyCQA/pylint/issues/2311

* Pylint 2 unsubscriptable-object workarounds

* Disable intentional pylint 2 assignment-from-nones

* Disable pylint 2 unsupported-membership-test apparent false positives

* Disable pylint 2 assignment-from-no-return apparent false positives

* Disable pylint 2 comparison-with-callable false positives

https://github.com/PyCQA/pylint/issues/2306

homeassistant/scripts/influxdb_import.py

@@ -137,6 +137,7 @@ def run(script_args: List) -> int:
     override_measurement = args.override_measurement
     default_measurement = args.default_measurement
 
+    # pylint: disable=assignment-from-no-return
     query = session.query(func.count(models.Events.event_type)).filter(
         models.Events.event_type == 'state_changed')