python: add more type annotations

python/pyproject.toml

@@ -51,7 +51,7 @@ git_describe_command = "git describe --dirty --tags --long --match v*.*"
 line-length = 120
 
 [tool.ruff]
-select = ["E", "F", "W", "YTT", "C4", "ISC", "ICN", "TID", "DTZ", "PLC", "PLE", "PLW", "PIE", "COM", "UP004", "UP010", "UP031", "UP032"]
+select = ["E", "F", "W", "YTT", "C4", "ISC", "ICN", "TID", "DTZ", "PLC", "PLE", "PLW", "PIE", "COM", "UP004", "UP010", "UP031", "UP032", "ANN204"]
 line-length = 120
 
 [tool.isort]

python/src/deltachat/account.py

@@ -121,7 +121,7 @@ class Account:
         """re-enable logging."""
         self._logging = True
 
-    def __repr__(self):
+    def __repr__(self) -> str:
         return f"<Account path={self.db_path}>"
 
     # def __del__(self):
@@ -363,12 +363,12 @@ class Account:
         :returns: list of :class:`deltachat.contact.Contact` objects.
         """
         flags = 0
-        query = as_dc_charpointer(query)
+        query_c = as_dc_charpointer(query)
         if only_verified:
             flags |= const.DC_GCL_VERIFIED_ONLY
         if with_self:
             flags |= const.DC_GCL_ADD_SELF
-        dc_array = ffi.gc(lib.dc_get_contacts(self._dc_context, flags, query), lib.dc_array_unref)
+        dc_array = ffi.gc(lib.dc_get_contacts(self._dc_context, flags, query_c), lib.dc_array_unref)
         return list(iter_array(dc_array, lambda x: Contact(self, x)))
 
     def get_fresh_messages(self) -> Generator[Message, None, None]:
@@ -767,7 +767,7 @@ class Account:
 
 
 class ScannedQRCode:
-    def __init__(self, dc_lot):
+    def __init__(self, dc_lot) -> None:
         self._dc_lot = dc_lot
 
     def is_ask_verifycontact(self):

python/src/deltachat/chat.py

@@ -24,7 +24,7 @@ class Chat:
     You obtain instances of it through :class:`deltachat.account.Account`.
     """
 
-    def __init__(self, account, id) -> None:
+    def __init__(self, account, id: int) -> None:
         from .account import Account
 
         assert isinstance(account, Account), repr(account)
@@ -532,13 +532,13 @@ class Chat:
 
     # ------  location streaming API ------------------------------
 
-    def is_sending_locations(self):
+    def is_sending_locations(self) -> bool:
         """return True if this chat has location-sending enabled currently.
         :returns: True if location sending is enabled.
         """
-        return lib.dc_is_sending_locations_to_chat(self.account._dc_context, self.id)
+        return bool(lib.dc_is_sending_locations_to_chat(self.account._dc_context, self.id))
 
-    def enable_sending_locations(self, seconds):
+    def enable_sending_locations(self, seconds) -> None:
         """enable sending locations for this chat.
 
         all subsequent messages will carry a location with them.
@@ -572,7 +572,7 @@ class Chat:
 
 
 class Location:
-    def __init__(self, latitude, longitude, accuracy, timestamp, marker):
+    def __init__(self, latitude, longitude, accuracy, timestamp, marker) -> None:
         assert isinstance(timestamp, datetime)
         self.latitude = latitude
         self.longitude = longitude
@@ -580,5 +580,5 @@ class Location:
         self.timestamp = timestamp
         self.marker = marker
 
-    def __eq__(self, other):
+    def __eq__(self, other) -> bool:
         return self.__dict__ == other.__dict__

python/src/deltachat/contact.py

@@ -15,7 +15,7 @@ class Contact:
     You obtain instances of it through :class:`deltachat.account.Account`.
     """
 
-    def __init__(self, account, id):
+    def __init__(self, account, id) -> None:
         from .account import Account
 
         assert isinstance(account, Account), repr(account)
@@ -27,10 +27,10 @@ class Contact:
             return False
         return self.account._dc_context == other.account._dc_context and self.id == other.id
 
-    def __ne__(self, other):
+    def __ne__(self, other) -> bool:
         return not self == other
 
-    def __repr__(self):
+    def __repr__(self) -> str:
         return f"<Contact id={self.id} addr={self.addr} dc_context={self.account._dc_context}>"
 
     @property

python/src/deltachat/direct_imap.py

@@ -191,7 +191,7 @@ class DirectImap:
 
 
 class IdleManager:
-    def __init__(self, direct_imap):
+    def __init__(self, direct_imap) -> None:
         self.direct_imap = direct_imap
         self.log = direct_imap.account.log
         # fetch latest messages before starting idle so that it only

python/src/deltachat/events.py

@@ -25,12 +25,12 @@ def get_dc_event_name(integer, _DC_EVENTNAME_MAP={}):
 
 
 class FFIEvent:
-    def __init__(self, name: str, data1, data2):
+    def __init__(self, name: str, data1, data2) -> None:
         self.name = name
         self.data1 = data1
         self.data2 = data2
 
-    def __str__(self):
+    def __str__(self) -> str:
         if self.name == "DC_EVENT_INFO":
             return f"INFO {self.data2}"
         if self.name == "DC_EVENT_WARNING":
@@ -84,7 +84,10 @@ class FFIEventLogger:
 
 
 class FFIEventTracker:
-    def __init__(self, account, timeout=None):
+    account: Account
+    _event_queue: Queue
+
+    def __init__(self, account: Account, timeout=None) -> None:
         self.account = account
         self._timeout = timeout
         self._event_queue = Queue()

python/src/deltachat/message.py

@@ -19,7 +19,7 @@ class Message:
     :class:`deltachat.chat.Chat`.
     """
 
-    def __init__(self, account, dc_msg):
+    def __init__(self, account, dc_msg) -> None:
         self.account = account
         assert isinstance(self.account._dc_context, ffi.CData)
         assert isinstance(dc_msg, ffi.CData)
@@ -33,7 +33,7 @@ class Message:
             return False
         return self.account == other.account and self.id == other.id
 
-    def __repr__(self):
+    def __repr__(self) -> str:
         c = self.get_sender_contact()
         typ = "outgoing" if self.is_outgoing() else "incoming"
         return (

python/src/deltachat/reactions.py

@@ -10,14 +10,14 @@ class Reactions:
     You obtain instances of it through :class:`deltachat.message.Message`.
     """
 
-    def __init__(self, account, dc_reactions):
+    def __init__(self, account, dc_reactions) -> None:
         assert isinstance(account._dc_context, ffi.CData)
         assert isinstance(dc_reactions, ffi.CData)
         assert dc_reactions != ffi.NULL
         self.account = account
         self._dc_reactions = dc_reactions
 
-    def __repr__(self):
+    def __repr__(self) -> str:
         return f"<Reactions dc_reactions={self._dc_reactions}>"
 
     @classmethod

python/src/deltachat/testplugin.py

@@ -9,7 +9,7 @@ import threading
 import time
 import weakref
 from queue import Queue
-from typing import Callable, List, Optional
+from typing import Callable, List, Optional, Dict, Set
 
 import pytest
 import requests
@@ -65,8 +65,8 @@ def pytest_configure(config):
     # Additionally make the acfactory use a logging/no-logging default.
 
     class LoggingAspect:
-        def __init__(self):
+        def __init__(self) -> None:
-            self._accounts = weakref.WeakSet()
+            self._accounts: weakref.WeakSet = weakref.WeakSet()
 
         @deltachat.global_hookimpl
         def dc_account_init(self, account):
@@ -143,10 +143,12 @@ def testprocess(request):
 class TestProcess:
     """A pytest session-scoped instance to help with managing "live" account configurations."""
 
-    def __init__(self, pytestconfig):
+    _addr2files: Dict[str, Dict[pathlib.Path, bytes]]
+
+    def __init__(self, pytestconfig) -> None:
         self.pytestconfig = pytestconfig
         self._addr2files = {}
-        self._configlist = []
+        self._configlist: List[Dict[str, str]] = []
 
     def get_liveconfig_producer(self):
         """provide live account configs, cached on a per-test-process scope
@@ -277,10 +279,10 @@ class ACSetup:
 
     _configured_events: Queue
 
-    def __init__(self, testprocess, init_time):
+    def __init__(self, testprocess, init_time) -> None:
         self._configured_events = Queue()
-        self._account2state = {}
+        self._account2state: Dict[Account, str] = {}
-        self._imap_cleaned = set()
+        self._imap_cleaned: Set[str] = set()
         self.testprocess = testprocess
         self.init_time = init_time
 

python/src/deltachat/tracker.py

@@ -1,19 +1,25 @@
 from queue import Queue
 from threading import Event
+from typing import List, TYPE_CHECKING
 
 from .hookspec import Global, account_hookimpl
 
+if TYPE_CHECKING:
+    from .events import FFIEvent
+
 
 class ImexFailed(RuntimeError):
     """Exception for signalling that import/export operations failed."""
 
 
 class ImexTracker:
-    def __init__(self):
+    _imex_events: Queue
+
+    def __init__(self) -> None:
         self._imex_events = Queue()
 
     @account_hookimpl
-    def ac_process_ffi_event(self, ffi_event):
+    def ac_process_ffi_event(self, ffi_event: "FFIEvent") -> None:
         if ffi_event.name == "DC_EVENT_IMEX_PROGRESS":
             self._imex_events.put(ffi_event.data1)
         elif ffi_event.name == "DC_EVENT_IMEX_FILE_WRITTEN":
@@ -50,7 +56,13 @@ class ConfigureFailed(RuntimeError):
 class ConfigureTracker:
     ConfigureFailed = ConfigureFailed
 
-    def __init__(self, account):
+    _configure_events: Queue
+    _smtp_finished: Event
+    _imap_finished: Event
+    _ffi_events: List["FFIEvent"]
+    _progress: Queue
+
+    def __init__(self, account) -> None:
         self.account = account
         self._configure_events = Queue()
         self._smtp_finished = Event()
@@ -60,7 +72,7 @@ class ConfigureTracker:
         self._gm = Global._get_plugin_manager()
 
     @account_hookimpl
-    def ac_process_ffi_event(self, ffi_event):
+    def ac_process_ffi_event(self, ffi_event: "FFIEvent") -> None:
         self._ffi_events.append(ffi_event)
         if ffi_event.name == "DC_EVENT_SMTP_CONNECTED":
             self._smtp_finished.set()

python/tests/stress_test_db.py

@@ -77,7 +77,7 @@ class ReportType:
 
 
 class AutoReplier:
-    def __init__(self, account, log, num_send, num_bigfiles, report_func):
+    def __init__(self, account, log, num_send, num_bigfiles, report_func) -> None:
         self.account = account
         self._log = log
         self.report_func = report_func
@@ -90,7 +90,7 @@ class AutoReplier:
         self._thread.setDaemon(True)
         self._thread.start()
 
-    def log(self, message):
+    def log(self, message) -> None:
         self._log(f"{self.addr} {message}")
 
     def thread_stats(self):

python/tests/test_1_online.py

@@ -1604,7 +1604,7 @@ def test_add_remove_member_remote_events(acfactory, lp):
     in_list = queue.Queue()
 
     class EventHolder:
-        def __init__(self, **kwargs):
+        def __init__(self, **kwargs) -> None:
             self.__dict__.update(kwargs)
 
     class InPlugin: