fix: compatibility with python3.8

invenio_campusonline/api.py

@@ -7,7 +7,7 @@
 # file for more details.
 
 """API functions of the campusonline connector."""
-from typing import Callable
+from typing import Callable, List, Tuple
 from xml.etree.ElementTree import fromstring
 
 from requests import post
@@ -37,7 +37,7 @@ def import_from_campusonline(
 
 def fetch_all_ids(
     endpoint: URL, token: CampusOnlineToken, theses_filters: ThesesFilter = None
-) -> list[tuple[CampusOnlineID, ThesesState]]:
+) -> List[Tuple[CampusOnlineID, ThesesState]]:
     """Fetch to import ids."""
     ids = []
     for theses_filter, state in theses_filters:

invenio_campusonline/tasks.py

@@ -8,7 +8,7 @@
 
 
 """Celery tasks for `invenio-campusonline`."""
-from typing import Callable
+from typing import Callable, Tuple
 
 from celery import shared_task
 from flask import current_app
@@ -18,7 +18,7 @@
 from .types import CampusOnlineConfigs
 
 
-def config_variables() -> tuple[Callable, CampusOnlineConfigs]:
+def config_variables() -> Tuple[Callable, CampusOnlineConfigs]:
     """Configuration variables."""
     import_func = current_app.config["CAMPUSONLINE_IMPORT_FUNC"]
     endpoint = current_app.config["CAMPUSONLINE_ENDPOINT"]

invenio_campusonline/types.py

@@ -11,6 +11,7 @@
 
 from dataclasses import astuple, dataclass
 from enum import Enum
+from typing import List
 from xml.etree.ElementTree import Element
 
 URL = str
@@ -49,7 +50,7 @@ class ThesesState(Enum):
 class ThesesFilter:
     """Filter dataclass."""
 
-    filter_: list[Element]
+    filter_: List[Element]
     state: ThesesState
 
     def __iter__(self):
@@ -65,5 +66,5 @@ class CampusOnlineConfigs:
     token: CampusOnlineToken
     user_email: EmailAddress
     theses_filters: ThesesFilter
-    recipients: list[EmailAddress]
+    recipients: List[EmailAddress]
     sender: EmailAddress

invenio_campusonline/utils.py

@@ -7,8 +7,8 @@
 # file for more details.
 
 """Command line interface to interact with the CampusOnline-Connector module."""
-
 from shutil import copyfileobj
+from typing import List
 from xml.etree.ElementTree import Element, fromstring
 
 from requests import get, post
@@ -71,7 +71,7 @@ def create_request_body_download(
 
 
 def create_request_body_ids(
-    token: CampusOnlineToken, theses_filter: list[Element]
+    token: CampusOnlineToken, theses_filter: List[Element]
 ) -> str:
     """Build request."""
     body = """