Merge pull request #8446 from cmonr/pin-py-module

Pin urllib3 pip module in requirements.txt

Author: Cruz Monrreal

.travis.yml

@@ -86,6 +86,7 @@ matrix:
 
         - arm-none-eabi-gcc --version
         - python --version
+        - pip list --verbose
       script:
         # Run local testing on tools
         - PYTHONPATH=. coverage run -a -m pytest tools/test

requirements.txt

@@ -5,6 +5,7 @@ Jinja2>=2.7.3
 IntelHex>=1.3
 junit-xml
 pyYAML
+urllib3[secure]==1.23
 requests
 mbed-ls>=1.5.1,==1.*
 mbed-host-tests>=1.1.2