Fix travis crash

.travis.yml

@@ -7,6 +7,8 @@ addons:
     packages:
     - x11-utils
     - libxkbcommon-x11-0
+#    - xvfb
+#    - herbstluftwm
 
 services: xvfb
 
@@ -15,15 +17,10 @@ branches:
   only:
     - master
 
-
-before_install:
-  - sudo apt-get update
-  - sudo apt-get install -y xvfb herbstluftwm
-
 install:
   - "export DISPLAY=:99.0"
   - "/sbin/start-stop-daemon --start --quiet --pidfile /tmp/custom_xvfb_99.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :99 -screen 0 1920x1200x24 -ac +extension GLX +render -noreset"
-  - sleep 3
+  - sleep 1
   - pip install tox
 
 jobs:
@@ -47,9 +44,9 @@ jobs:
     - python: 3.6
       env: TOXENV=docs
 
-before_script:
-  - "herbstluftwm &"
-  - sleep 1
+#before_script:
+#  - "herbstluftwm &"
+#  - sleep 1
 
 script:
   - QT_DEBUG_PLUGINS=1 tox

requirements_tests.txt

@@ -4,7 +4,6 @@ flake8
 mypy
 pre-commit
 pydocstyle
-PyQt5-stubs==5.13.1.4
 pytest
 pytest-cov
 pytest-mock