Reduce job execution time

Author: ggeop

.travis.yml

@@ -1,4 +1,5 @@
 language: python
+cache: pip
 jobs:
   include:
     - name: "Python 3.8 on Focal"
@@ -12,7 +13,7 @@ install:
   - sudo apt install mongodb
   - sudo apt-get update
   - source ~/virtualenv/python3.8/bin/activate
-  - pip install -U scikit-learn
+  - pip install -U scikit-learn==0.21.2
   - export PYTHONPATH="${PYTHONPATH}:./src/jarvis"
 
 script:

requirements.txt

@@ -35,7 +35,6 @@ pyowm==2.10.0
 pyttsx3==2.71
 pytz==2019.1
 requests==2.21.0
-scikit-learn==0.21.2
 scipy==1.5.4
 six==1.12.0
 soupsieve==1.9.1