address @dignifiedquire comments

python/install_py_bindings.sh

@@ -2,6 +2,8 @@
 
 set -ex
 
-cargo build -p deltachat_ffi 
+export DCC_RS_TARGET=release
+
+cargo build -p deltachat_ffi --${DCC_RS_TARGET}
 rm -rf build/ src/deltachat/*.so
 DCC_RS_DEV=`pwd`/.. pip install -e .

python/src/deltachat/account.py

@@ -36,6 +36,7 @@ class Account(object):
             lib.dc_context_new(lib.py_dc_callback, ffi.NULL, ffi.NULL),
             _destroy_dc_context,
         )
+        self._threads = IOThreads(self._dc_context)
         if hasattr(db_path, "encode"):
             db_path = db_path.encode("utf8")
         if not lib.dc_open(self._dc_context, db_path, ffi.NULL):
@@ -43,7 +44,6 @@ class Account(object):
         if eventlogging:
             self._evlogger = EventLogger(self._dc_context, logid)
             deltachat.set_context_callback(self._dc_context, self._process_event)
-        self._threads = IOThreads(self._dc_context)
         self._configkeys = self.get_config("sys.config_keys").split()
         self._imex_completed = threading.Event()
 

python/tests/test_account.py

@@ -1,12 +1,18 @@
 from __future__ import print_function
 import pytest
 import os
-from deltachat import const
+from deltachat import const, Account
 from datetime import datetime, timedelta
 from conftest import wait_configuration_progress, wait_successful_IMAP_SMTP_connection
 
 
 class TestOfflineAccount:
+    def test_wrong_db(self, tmpdir):
+        p = tmpdir.join("hello.db")
+        p.write("123")
+        with pytest.raises(ValueError):
+            Account(p.strpath)
+
     def test_getinfo(self, acfactory):
         ac1 = acfactory.get_unconfigured_account()
         d = ac1.get_info()

python/tests/test_lowlevel.py

@@ -2,6 +2,7 @@ from __future__ import print_function
 import pytest
 from deltachat import capi, Account, const, set_context_callback, clear_context_callback
 from deltachat.capi import ffi
+from deltachat.capi import lib
 from deltachat.account import EventLogger
 
 
@@ -23,17 +24,31 @@ def test_dc_close_events():
     evlog.set_timeout(5)
     set_context_callback(ctx, lambda ctx, evt_name, data1, data2: evlog(evt_name, data1, data2))
     capi.lib.dc_close(ctx)
-    # test that we get events from dc_close
-    print(evlog.get_matching("DC_EVENT_INFO", check_error=False))
-    print(evlog.get_matching("DC_EVENT_INFO", check_error=False))
-    print(evlog.get_matching("DC_EVENT_INFO", check_error=False))
-    print(evlog.get_matching("DC_EVENT_INFO", check_error=False))
+    def find(info_string):
+        while 1:
+            ev = evlog.get_matching("DC_EVENT_INFO", check_error=False)
+            data2 = ev[2]
+            if info_string in data2:
+                return
+            else:
+                print("skipping info event", data2)
+
+    find("disconnecting INBOX-watch")
+    find("disconnecting sentbox-thread")
+    find("disconnecting mvbox-thread")
+    find("disconnecting SMTP")
+    find("Database closed")
 
 
 def test_wrong_db(tmpdir):
-    tmpdir.join("hello.db").write("123")
-    with pytest.raises(ValueError):
-        Account(db_path=tmpdir.strpath)
+    dc_context = ffi.gc(
+        lib.dc_context_new(lib.py_dc_callback, ffi.NULL, ffi.NULL),
+        lib.dc_context_unref,
+    )
+    p = tmpdir.join("hello.db")
+    # write an invalid database file
+    p.write("x123" * 10)
+    assert not lib.dc_open(dc_context, p.strpath.encode("ascii"), ffi.NULL)
 
 
 def test_event_defines():