fix missing renames and tox dep

ci_scripts/remote_tests_python.sh

@@ -35,8 +35,12 @@ ssh $SSHTARGET <<_HERE
     #rm -rf virtualenv venv
     #virtualenv -q -p python3.7 venv 
     #source venv/bin/activate
-    set -x
-
     #pip install -q tox virtualenv
+
+    set -x
+    which python
+    source \$HOME/venv/bin/activate
+    which python
+
     bash ci_scripts/run-python-test.sh 
 _HERE

ci_scripts/run-python-test.sh

@@ -19,4 +19,5 @@ rm -rf src/deltachat/__pycache__
 export PYTHONDONTWRITEBYTECODE=1
 
 # run python tests (tox invokes pytest to run tests in python/tests)
-tox -e lintdoc,py37 
+TOX_PARALLEL_NO_SPINNER=1 tox -p2 -e lint,doc
+tox -e py37