Drop python 3.2 3.3 3.4 testing

Author: p1c2u

.travis.yml

@@ -3,9 +3,6 @@ sudo: false
 matrix:
   include:
   - python: 2.7
-  - python: 3.2
-  - python: 3.3
-  - python: 3.4
   - python: 3.5
   - python: 3.6
   - python: 3.7
@@ -14,13 +11,8 @@ matrix:
   - python: nightly
   - python: pypy3
   allow_failures:
-  - python: 3.2  # EOL
-  - python: 3.3  # EOL
-  - python: 3.4  # EOL
   - python: nightly
 before_install:
-- if [[ $TRAVIS_PYTHON_VERSION == '3.2' ]]; then pip install 'coverage<4.0.0'; fi
-- if [[ $TRAVIS_PYTHON_VERSION == '3.3' ]]; then pip install 'pyflakes<2.0.0'; fi
 - pip install codecov
 install:
 - pip install -r requirements.txt