added .hound.yml and updated config (#155)

closes #155

Author: beniwohli

.flake8

@@ -0,0 +1,4 @@
+[flake8]
+exclude=elasticapm/utils/wrapt,build,src,tests,dist,conftest.py,setup.py
+max-line-length=120
+ignore=E731

.hound.yml

@@ -0,0 +1,5 @@
+flake8:
+  enabled: true
+  config_file: .flake8
+
+fail_on_violations: true

.travis.yml

@@ -27,11 +27,6 @@ matrix:
     python: 3.6
     script: pip install isort && isort -c -df && echo "OK"
 
-  - stage: linters
-    env: LINTER="flake8"
-    python: 3.6
-    script: pip install -U flake8 flake8-per-file-ignores && flake8 elasticapm
-
   - stage: linters
     script: make docs
     perl: "5.26"

Makefile

@@ -5,7 +5,7 @@ isort:
 	isort -rc -vb .
 
 flake8:
-	flake8 elasticapm
+	flake8
 
 test:
 	if [[ "$$PYTHON_VERSION" =~ ^(3.5|3.6|nightly|pypy3)$$ ]] ; then \

elasticapm/__init__.py

@@ -18,7 +18,7 @@
     VERSION = 'unknown'
 
 from elasticapm.base import Client
-from elasticapm.conf import setup_logging
-from elasticapm.instrumentation.control import instrument, uninstrument
-from elasticapm.traces import (capture_span, set_context, set_custom_context,
-                               set_transaction_name, set_user_context, tag)
+from elasticapm.conf import setup_logging  # noqa: F401
+from elasticapm.instrumentation.control import instrument, uninstrument  # noqa: F401
+from elasticapm.traces import capture_span, set_context, set_custom_context  # noqa: F401
+from elasticapm.traces import set_transaction_name, set_user_context, tag  # noqa: F401

setup.cfg

@@ -20,7 +20,7 @@ markers =
 line_length=80
 indent='    '
 not_skip=__init__.py
-skip=wrapt,setup.py,build,src
+skip=wrapt,setup.py,build,src,elasticapm/__init__.py
 multi_line_output=0
 known_standard_library=importlib,types,asyncio
 known_django=django
@@ -29,14 +29,6 @@ known_third_party=pytest,flask,aiohttp,urllib3_mock,webob,memcache,pymongo,boto3
 default_section=FIRSTPARTY
 sections=FUTURE,STDLIB,DJANGO,THIRDPARTY,FIRSTPARTY,LOCALFOLDER
 
-
-[flake8]
-exclude=elasticapm/utils/wrapt,build,src
-max-line-length=120
-ignore=E731
-per-file-ignores =
-    elasticapm/__init__.py: F401
-
 [coverage:run]
 include =
     elasticapm/*