Fix travis install pip3

sea5kg · sea5kg · commit 37c6ce4fee9d · 2020-02-19T10:45:28.000+07:00
diff --git a/.travis.yml b/.travis.yml
@@ -5,16 +5,18 @@ branches:
     - master
 
 dist: bionic
-
-
   
+python:
+  - "3.7"
+
 addons:
   apt:
     packages:
     - cmake
     - make
     - g++
     - pkg-config
+    - python3-pip
 
 install:
   - pip3 install --user requests
