diff --git a/python/src/deltachat/direct_imap.py b/python/src/deltachat/direct_imap.py
index 3040d3861..0013f97ff 100644
--- a/python/src/deltachat/direct_imap.py
+++ b/python/src/deltachat/direct_imap.py
@@ -1,13 +1,4 @@
-import os
-import threading
-import click
-import ssl
-import atexit
-import email
-import contextlib
-import time
 import imaplib
-from subprocess import call
 
 INBOX = "Inbox"
 SENT = "Sent"
@@ -25,6 +16,7 @@ def db_folder_attr(name):
         s.db_folder[name] = val
     return property(fget, fset, None, None)
 
+
 class ImapConn():
     def __init__(self, foldername, conn_info):
         self.foldername = foldername
@@ -44,13 +36,12 @@ class ImapConn():
         result, data = self.connection.search(None, 'UnSeen')
         try:
             mails_uid = data[0].split()
-            newest_mail = mails_uid[0]
             print("New mails")
 
 #            self.connection.store(data[0].replace(' ',','),'+FLAGS','\Seen')
             for e_id in mails_uid:
-                self.connection.store(e_id, '+FLAGS', '\Seen')
-                print("marked:",e_id)
+                self.connection.store(e_id, '+FLAGS', '\\Seen')
+                print("marked:", e_id)
 
             return True
         except IndexError:
diff --git a/python/tests/test_account.py b/python/tests/test_account.py
index de1c5764f..c6176b23f 100644
--- a/python/tests/test_account.py
+++ b/python/tests/test_account.py
@@ -7,6 +7,9 @@ from deltachat import const, Account
 from deltachat.message import Message
 from deltachat.hookspec import account_hookimpl
 from datetime import datetime, timedelta
+from conftest import (wait_configuration_progress,
+                      wait_securejoin_inviter_progress)
+from deltachat import direct_imap
 
 
 @pytest.mark.parametrize("msgtext,res", [
@@ -657,10 +660,10 @@ class TestOnlineAccount:
 
         assert list(ac2.get_fresh_messages())
 
-        for i in range(0,30):
+        for i in range(0, 30):
             if imap2.get_unread_cnt() == 1:
                 break
-            sleep(1) # We might need to wait because Imaplib is slower than DC-Core
+            time.sleep(1)  # We might need to wait because Imaplib is slower than DC-Core
         assert imap2.get_unread_cnt() == 1
 
         incoming_on_ac2.mark_seen()
@@ -670,10 +673,10 @@ class TestOnlineAccount:
         assert not list(ac2.get_fresh_messages())
 
         # The new messages should be seen now.
-        for i in range(0,30):
+        for i in range(0, 30):
             if imap2.get_unread_cnt() == 0:
                 break
-            sleep(1) # We might need to wait because Imaplib is slower than DC-Core
+            time.sleep(1)  # We might need to wait because Imaplib is slower than DC-Core
         assert imap2.get_unread_cnt() == 0
 
     def test_send_file_twice_unicode_filename_mangling(self, tmpdir, acfactory, lp):