From 337e8ee19e7f2108c222dfb7e593aa1c8191de3a Mon Sep 17 00:00:00 2001
From: Patrick Kanzler <dev@pkanzler.de>
Date: Mon, 30 Jan 2017 02:29:08 +0100
Subject: [PATCH] add flake8-checks to travis

---
 .travis.yml             | 2 ++
 setup.cfg               | 1 +
 setup.py                | 3 +++
 src/escpos/cli.py       | 3 +++
 src/escpos/codepages.py | 1 +
 tox.ini                 | 1 +
 6 files changed, 11 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 0932316..78fa8ad 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -25,6 +25,8 @@ matrix:
       env: TOXENV=pypy3
     - python: 2.7
       env: TOXENV=docs
+    - python: 3.4
+      env: TOXENV=flake8
   allow_failures:
     - python: 3.5-dev
     - python: nightly
diff --git a/setup.cfg b/setup.cfg
index 95c89af..ea43f22 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -9,3 +9,4 @@ universal=1
 [flake8]
 exclude = .git,.tox,.github,.eggs,__pycache__,doc/conf.py,build,dist,capabilities-data,test,src/escpos/constants.py
 max-line-length = 120
+# future-imports = absolute_import, division, print_function, unicode_literals  # we are not there yet
diff --git a/setup.py b/setup.py
index adcac2a..c699c5a 100755
--- a/setup.py
+++ b/setup.py
@@ -50,6 +50,9 @@ setuptools_scm_template = """\
 # coding: utf-8
 # file generated by setuptools_scm
 # don't change, don't track in version control
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
 from __future__ import unicode_literals
 
 version = '{version}'
diff --git a/src/escpos/cli.py b/src/escpos/cli.py
index 62742dd..dad2dfb 100644
--- a/src/escpos/cli.py
+++ b/src/escpos/cli.py
@@ -33,9 +33,11 @@ def str_to_bool(string):
     """
     return string.lower() in ('y', 'yes', '1', 'true')
 
+
 # A list of functions that work better with a newline to be sent after them.
 REQUIRES_NEWLINE = ('qr', 'barcode', 'text', 'block_text')
 
+
 # Used in demo method
 # Key: The name of escpos function and the argument passed on the CLI. Some
 #   manual translation is done in the case of barcodes_a -> barcode.
@@ -568,5 +570,6 @@ def demo(printer, **kwargs):
             command(**params)
         printer.cut()
 
+
 if __name__ == '__main__':
     main()
diff --git a/src/escpos/codepages.py b/src/escpos/codepages.py
index e22e1d0..ca63ef3 100644
--- a/src/escpos/codepages.py
+++ b/src/escpos/codepages.py
@@ -20,4 +20,5 @@ class CodePageManager:
     def get_encoding(self, encoding):
         return self.data[encoding]
 
+
 CodePages = CodePageManager(CAPABILITIES['encodings'])
diff --git a/tox.ini b/tox.ini
index f2d6389..5dc5d64 100644
--- a/tox.ini
+++ b/tox.ini
@@ -22,5 +22,6 @@ commands = sphinx-build -W -b html -d {envtmpdir}/doctrees .  {envtmpdir}/html
 
 [testenv:flake8]
 basepython = python
+# TODO add flake8-future
 deps = flake8
 commands = flake8