diff --git a/python/pyproject.toml b/python/pyproject.toml
index 4aa6666db..a41e7aeec 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -55,3 +55,5 @@ line-length = 120
 
 [tool.isort]
 profile = "black"
+
+[tool.pyright]
diff --git a/python/src/deltachat/chat.py b/python/src/deltachat/chat.py
index e666b6cd4..4c53505fb 100644
--- a/python/src/deltachat/chat.py
+++ b/python/src/deltachat/chat.py
@@ -463,9 +463,10 @@ class Chat:
         :returns: None
         """
         contact = self.account.get_contact(obj)
-        ret = lib.dc_remove_contact_from_chat(self.account._dc_context, self.id, contact.id)
-        if ret != 1:
-            raise ValueError(f"could not remove contact {contact!r} from chat")
+        if contact:
+            ret = lib.dc_remove_contact_from_chat(self.account._dc_context, self.id, contact.id)
+            if ret != 1:
+                raise ValueError("could not remove contact {contact!r} from chat")
 
     def get_contacts(self):
         """get all contacts for this chat.
diff --git a/python/src/deltachat/direct_imap.py b/python/src/deltachat/direct_imap.py
index d95bd29ab..fc35a32e0 100644
--- a/python/src/deltachat/direct_imap.py
+++ b/python/src/deltachat/direct_imap.py
@@ -147,7 +147,7 @@ class DirectImap:
                     log("Message", msg.uid, "has empty body")
                     continue
 
-                path = pathlib.Path(str(dir)).joinpath("IMAP", self.logid, imapfolder)
+                path = pathlib.Path(str(dir)).joinpath("IMAP", str(self.logid), imapfolder)
                 path.mkdir(parents=True, exist_ok=True)
                 fn = path.joinpath(str(msg.uid))
                 fn.write_bytes(body)
diff --git a/python/src/deltachat/events.py b/python/src/deltachat/events.py
index 006095da0..937d48bb7 100644
--- a/python/src/deltachat/events.py
+++ b/python/src/deltachat/events.py
@@ -111,11 +111,12 @@ class FFIEventTracker:
         while True:
             yield self.get(timeout=timeout, check_error=check_error)
 
-    def get_matching(self, event_name_regex, check_error=True, timeout=None):
+    def get_matching(self, event_name_regex, check_error=True, timeout=None) -> FFIEvent:
         rex = re.compile(f"^(?:{event_name_regex})$")
         for ev in self.iter_events(timeout=timeout, check_error=check_error):
             if rex.match(ev.name):
                 return ev
+        assert False
 
     def get_info_contains(self, regex: str) -> FFIEvent:
         rex = re.compile(regex)
@@ -123,6 +124,7 @@ class FFIEventTracker:
             ev = self.get_matching("DC_EVENT_INFO")
             if rex.search(ev.data2):
                 return ev
+        assert False
 
     def get_info_regex_groups(self, regex, check_error=True):
         rex = re.compile(regex)
diff --git a/python/src/deltachat/testplugin.py b/python/src/deltachat/testplugin.py
index ebbb13aaf..a1a010e17 100644
--- a/python/src/deltachat/testplugin.py
+++ b/python/src/deltachat/testplugin.py
@@ -250,7 +250,7 @@ def data(request):
                 fn = os.path.join(path, *bn.split("/"))
                 if os.path.exists(fn):
                     return fn
-            print(f"WARNING: path does not exist: {fn!r}")
+            print(f"WARNING: path does not exist: {request!r}")
             return None
 
         def read_path(self, bn, mode="r"):
diff --git a/python/tests/test_2_increation.py b/python/tests/test_2_increation.py
index c7e35119a..f02fdc63f 100644
--- a/python/tests/test_2_increation.py
+++ b/python/tests/test_2_increation.py
@@ -1,6 +1,7 @@
 import os.path
 import shutil
 from filecmp import cmp
+from typing import Optional
 
 import pytest
 
@@ -13,7 +14,7 @@ def wait_msg_delivered(account, msg_list):
         msg_list.remove((ev.data1, ev.data2))
 
 
-def wait_msgs_changed(account, msgs_list):
+def wait_msgs_changed(account, msgs_list: list[tuple[int, Optional[int]]]):
     """wait for one or more MSGS_CHANGED events to match msgs_list contents."""
     account.log(f"waiting for msgs_list={msgs_list}")
     msgs_list = list(msgs_list)
diff --git a/python/tox.ini b/python/tox.ini
index 6a50005c5..a996a319d 100644
--- a/python/tox.ini
+++ b/python/tox.ini
@@ -5,6 +5,7 @@ envlist =
     lint
     mypy
     auditwheels
+    pyright
 
 [testenv]
 commands = 
@@ -25,6 +26,7 @@ deps =
     pytest-xdist
     pdbpp
     requests
+    pyright: pyright
 
 [testenv:.pkg]
 passenv =
@@ -68,6 +70,10 @@ deps =
 commands =
     mypy --no-incremental src/
 
+[testenv:pyright]
+commands =
+    pyright
+
 [testenv:doc]
 changedir=doc
 deps =