Drop Python 3.4

Never gonna get master back to green working with a dead Python.

.travis.yml

@@ -25,30 +25,6 @@
         "env": "BUILD=style",
         "python": "3.6"
       },
-      {
-        "env": "BUILD=test DAV_SERVER=radicale REQUIREMENTS=devel ",
-        "python": "3.4"
-      },
-      {
-        "env": "BUILD=test DAV_SERVER=xandikos REQUIREMENTS=devel ",
-        "python": "3.4"
-      },
-      {
-        "env": "BUILD=test DAV_SERVER=radicale REQUIREMENTS=release ",
-        "python": "3.4"
-      },
-      {
-        "env": "BUILD=test DAV_SERVER=xandikos REQUIREMENTS=release ",
-        "python": "3.4"
-      },
-      {
-        "env": "BUILD=test DAV_SERVER=radicale REQUIREMENTS=minimal ",
-        "python": "3.4"
-      },
-      {
-        "env": "BUILD=test DAV_SERVER=xandikos REQUIREMENTS=minimal ",
-        "python": "3.4"
-      },
       {
         "env": "BUILD=test DAV_SERVER=radicale REQUIREMENTS=devel ",
         "python": "3.5"

docs/installation.rst

@@ -41,7 +41,7 @@ If your distribution doesn't provide a package for vdirsyncer, you still can
 use Python's package manager "pip". First, you'll have to check that the
 following things are installed:
 
-- Python 3.4+ and pip.
+- Python 3.5+ and pip.
 - ``libxml`` and ``libxslt``
 - ``zlib``
 - Linux or OS X. **Windows is not supported, see :gh:`535`.**

scripts/make_travisconf.py

@@ -2,7 +2,7 @@ import itertools
 import json
 import sys
 
-python_versions = ("3.4", "3.5", "3.6")
+python_versions = ("3.5", "3.6")
 latest_python = "3.6"
 
 cfg = {}

setup.py

@@ -95,7 +95,6 @@ setup(
         'License :: OSI Approved :: BSD License',
         'Operating System :: POSIX',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Topic :: Internet',

vdirsyncer/__init__.py

@@ -22,7 +22,7 @@ except ImportError:  # pragma: no cover
 def _check_python_version():  # pragma: no cover
     import sys
     if sys.version_info < (3, 4, 0):
-        print('vdirsyncer requires at least Python 3.4.')
+        print('vdirsyncer requires at least Python 3.5.')
         sys.exit(1)
 
 

vdirsyncer/cli/utils.py

@@ -212,7 +212,7 @@ def manage_sync_status(base_path, pair_name, collection_name):
         with open(path, 'rb') as f:
             if f.read(1) == b'{':
                 f.seek(0)
-                # json.load doesn't work on binary files for Python 3.4/3.5
+                # json.load doesn't work on binary files for Python 3.5
                 legacy_status = dict(json.loads(f.read().decode('utf-8')))
     except (OSError, IOError, ValueError):
         pass