Dependencies: Drop support for Python 3.7 (#282)

.github/workflows/cd.yml

@@ -58,7 +58,7 @@ jobs:
 
         strategy:
             matrix:
-                python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
+                python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
 
         services:
             postgres:

.github/workflows/ci.yml

@@ -25,7 +25,7 @@ jobs:
 
         strategy:
             matrix:
-                python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
+                python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
 
         services:
             rabbitmq:

pyproject.toml

@@ -20,15 +20,14 @@ classifiers = [
     'License :: OSI Approved :: MIT License',
     'License :: OSI Approved :: GNU General Public License v3 (GPLv3)',
     'Programming Language :: Python',
-    'Programming Language :: Python :: 3.7',
     'Programming Language :: Python :: 3.8',
     'Programming Language :: Python :: 3.9',
     'Programming Language :: Python :: 3.10',
     'Programming Language :: Python :: 3.11',
     'Programming Language :: Python :: 3.12',
 ]
 keywords = ['workflow', 'multithreaded', 'rabbitmq']
-requires-python = '>=3.7'
+requires-python = '>=3.8'
 dependencies = [
     'kiwipy[rmq]~=0.8.3',
     'nest_asyncio~=1.5,>=1.5.1',

src/plumpy/events.py

@@ -55,8 +55,6 @@ def reset_event_loop_policy() -> None:
     cls = loop.__class__
 
     del cls._check_running  # type: ignore
-    # typo in Python 3.7 source
-    del cls._check_runnung  # type: ignore
     del cls._nest_patched  # type: ignore
     # pylint: enable=protected-access
 

src/plumpy/process_states.py

@@ -1,5 +1,4 @@
 # -*- coding: utf-8 -*-
-import asyncio
 from enum import Enum
 import sys
 import traceback
@@ -231,11 +230,6 @@ async def execute(self) -> State:  # type: ignore # pylint: disable=invalid-over
             except Interruption:
                 # Let this bubble up to the caller
                 raise
-            except asyncio.CancelledError:  # pylint: disable=try-except-raise
-                # note this re-raise is only required in python<=3.7,
-                # for python>=3.8 asyncio.CancelledError does not inherit from Exception,
-                # so will not be caught below
-                raise
             except Exception:  # pylint: disable=broad-except
                 excepted = self.create_state(ProcessState.EXCEPTED, *sys.exc_info()[1:])
                 return cast(State, excepted)

src/plumpy/processes.py

@@ -1235,12 +1235,6 @@ async def step(self) -> None:
 
             except KeyboardInterrupt:  # pylint: disable=try-except-raise
                 raise
-            except asyncio.CancelledError:  # pylint: disable=try-except-raise
-                # note this re-raise is only required in python<=3.7,
-                # where asyncio.CancelledError == concurrent.futures.CancelledError
-                # it is encountered when the run_task is cancelled
-                # for python>=3.8 asyncio.CancelledError does not inherit from Exception, so will not be caught below
-                raise
             except Exception:  # pylint: disable=broad-except
                 # Overwrite the next state to go to excepted directly
                 next_state = self.create_state(process_states.ProcessState.EXCEPTED, *sys.exc_info()[1:])