Drop Python 3.4 suppot, enable Python 3.8 tests (#156)

Author: kmike

.travis.yml

@@ -8,14 +8,14 @@ matrix:
       env: TOXENV=py27
     - python: pypy
       env: TOXENV=pypy
-    - python: 3.4
-      env: TOXENV=py34
     - python: 3.5
       env: TOXENV=py35
     - python: 3.6
       env: TOXENV=py36
     - python: 3.7
       env: TOXENV=py37
+    - python: 3.8
+      env: TOXENV=py38
     - python: pypy3
       env: TOXENV=pypy3
     - python: 3.7
@@ -49,7 +49,7 @@ deploy:
     tags: true
     all_branches: true
     repo: scrapy/w3lib
-    condition: "$TOXENV == py27"
+    condition: "$TOXENV == py37"
 
 cache:
   directories:

README.rst

@@ -27,7 +27,7 @@ This is a Python library of web-related functions, such as:
 Requirements
 ============
 
-Python 2.7 or Python 3.4+
+Python 2.7 or Python 3.5+
 
 Install
 =======

setup.py

@@ -21,10 +21,10 @@
         'Programming Language :: Python :: 2',
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: Implementation :: CPython',
         'Programming Language :: Python :: Implementation :: PyPy',
         'Topic :: Internet :: WWW/HTTP',

tox.ini

@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py27, pypy, py34, py35, py36, py37, pypy3, docs
+envlist = py27, pypy, py35, py36, py37, py38, pypy3, docs
 
 [testenv]
 deps =