try latest mypy and aiohttp

.travis.yml

@@ -9,7 +9,7 @@ jobs:
     - stage: code quality
       name: "pylint & mypy"
       install:
-        - pip install astroid==2.0.4 aiohttp==3.4.4
+        #- pip install astroid==2.0.4 aiohttp==3.4.4
         # newer astroid and aiohttp fails in pylint so we pre-install older version
         - pip install pylint mypy
         - pip install -e .

setup.py

@@ -9,7 +9,7 @@ with open(os.path.join(BASE, 'README.md'), encoding='utf-8') as fh:
     long_description = fh.read()
 
 REQUIRES = [
-    'aiohttp==3.4.4',
+    'aiohttp',#==3.4.4',
     'cffi==1.12.1', # TODO: 1.12.2 fails on travis in wine
     'coincurve==11.0.0',
     'pbkdf2==1.3',