Update flake8 configurations

Signed-off-by: Hiroshi Miura <miurahr@linux.com>

.travis.yml

@@ -5,7 +5,7 @@ install:
 - pip install wheel flake8 requests six
 
 script:
-- flake8
+- flake8 aqt bin
 - python -m aqt --help
 
 deploy:

aqt/__init__.py

@@ -44,6 +44,7 @@ def main():
     list_parser = subparsers.add_parser('list')
     list_parser.add_argument("qt_version", help="Qt version in the format of \"5.X.Y\"")
     help_parser = subparsers.add_parser('help')
+    help_parser.add_help("show help")
     args = parser.parse_args()
     arch = args.arch
     target = args.target

azure-pipelines.yml

@@ -15,7 +15,7 @@ jobs:
   - script: |
       python -m pip install $(pydepends)
       python -m pip install flake8 twine wheel
-      flake8 .
+      flake8 aqt bin
     displayName: 'Run lint tests'
   - script: |
       sudo apt-get update

setup.cfg

@@ -1,5 +1,6 @@
 [flake8]
 max-line-length = 125
+exclude = .git,__pycache__,docs/conf.py,build,dist,tmp,venv
 
 [bdist_wheel]
 universal=1