diff --git a/python/install_python_bindings.py b/python/install_python_bindings.py
index ee891193f..665f72e45 100755
--- a/python/install_python_bindings.py
+++ b/python/install_python_bindings.py
@@ -25,7 +25,7 @@ if __name__ == "__main__":
     ])
     subprocess.check_call("rm -rf build/ src/deltachat/*.so" , shell=True)
 
-    if len(sys.argv) > 1 and sys.argv[1] != "onlybuild":
+    if len(sys.argv) <= 1 or sys.argv[1] != "onlybuild":
         subprocess.check_call([
             sys.executable, "-m", "pip", "install", "-e", "."
         ])
diff --git a/python/tox.ini b/python/tox.ini
index d882efff8..05bb7043f 100644
--- a/python/tox.ini
+++ b/python/tox.ini
@@ -10,8 +10,8 @@ commands =
     # (some qr tests are pretty heavy in terms of send/received
     # messages and async-imap's likely has concurrency problems, 
     # eg https://github.com/async-email/async-imap/issues/4 )
-    pytest -n6 -v -rsXx -k "not qr" {posargs:tests} 
-    pytest -n6 -v -rsXx -k "qr" {posargs:tests} 
+    pytest -n6 --reruns 3 --reruns-delay 5 -v -rsXx -k "not qr" {posargs:tests} 
+    pytest -n6 --reruns 5 --reruns-delay 5 -v -rsXx -k "qr" {posargs:tests} 
     # python tests/package_wheels.py {toxworkdir}/wheelhouse
 passenv = 
     TRAVIS 
@@ -69,7 +69,7 @@ commands =
 
 
 [pytest]
-addopts = -v -rs --reruns 3 --reruns-delay 2
+addopts = -v -rs 
 python_files = tests/test_*.py 
 norecursedirs = .tox 
 xfail_strict=true