evemu: enable python3 bindings

Add evemu/python3 related patches:
- fix python/evemu/base.py for python3 (add patch from [1])
- fix python3 binding runtime failure

[1] http://ftp.de.debian.org/debian/pool/main/e/evemu/evemu_1.2.0-2.debian.tar.xz

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/evemu/evemu-0006-Description-fixes-the-syntax-for-raising-exceptions-.patch

@@ -0,0 +1,27 @@
+Description: fixes the syntax for raising exceptions to be Python2 and Python3
+ acceptable.
+Author: Stephen M. Webb
+Bug-Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=706155
+
+--- a/python/evemu/base.py
++++ b/python/evemu/base.py
+@@ -19,15 +19,15 @@
+     def _call0(self, api_call, *parameters):
+         result = api_call(*parameters)
+         if result == 0 and self.get_c_errno() != 0:
+-            raise exception.ExecutionError, "%s: %s" % (
+-                api_call.__name__, self.get_c_error())
++            raise exception.ExecutionError("%s: %s" % (
++                api_call.__name__, self.get_c_error()))
+         return result
+ 
+     def _call(self, api_call, *parameters):
+         result = api_call(*parameters)
+         if result < 0 and self.get_c_errno() != 0:
+-            raise exception.ExecutionError, "%s: %s" % (
+-                api_call.__name__, self.get_c_error())
++            raise exception.ExecutionError("%s: %s" % (
++                api_call.__name__, self.get_c_error()))
+         return result
+ 
+     def get_c_errno(self):

package/evemu/evemu-0007-python-fix-device-open-for-python3.patch

@@ -0,0 +1,35 @@
+From f192db7848962a1616e243bb60e705da6c6f3412 Mon Sep 17 00:00:00 2001
+From: Peter Seiderer <ps.report@gmx.net>
+Date: Sun, 27 Apr 2014 01:16:16 +0200
+Subject: [PATCH] python: fix device open for python3
+
+- use 'rb' instead of 'r+b', fixes:
+
+>>> import evemu
+>>> evemu.Device('/dev/input/event0')
+Traceback (most recent call last):
+  File "<stdin>", line 1, in <module>
+  File "/usr/lib/python3.4/site-packages/evemu/__init__.py", line 50, in __init__
+io.UnsupportedOperation: File or stream is not seekable.
+
+Signed-off-by: Peter Seiderer <ps.report@gmx.net>
+---
+ python/evemu/__init__.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/python/evemu/__init__.py b/python/evemu/__init__.py
+index abdbf7e..aa73871 100644
+--- a/python/evemu/__init__.py
++++ b/python/evemu/__init__.py
+@@ -47,7 +47,7 @@ class Device(object):
+         """
+ 
+         if type(f).__name__ == 'str':
+-            self._file = open(f, 'r+b')
++            self._file = open(f, 'rb')
+         elif type(f).__name__ == 'file':
+             self._file = f
+         else:
+-- 
+1.8.1.4
+

package/evemu/evemu.mk

@@ -27,11 +27,10 @@ EVEMU_DEPENDENCIES = host-pkgconf libevdev
 # Needs Python for header file generation
 EVEMU_DEPENDENCIES += $(if $(BR2_PACKAGE_PYTHON3),host-python3,host-python)
 
-# Check for target python (python3 bindings disabled because
-# of build/byte-compile problems)
-ifeq ($(BR2_PACKAGE_PYTHON),y)
+# Check for target python
+ifeq ($(BR2_PACKAGE_PYTHON)$(BR2_PACKAGE_PYTHON3),y)
 EVEMU_CONF_OPT += --enable-python-bindings
-EVEMU_DEPENDENCIES += python
+EVEMU_DEPENDENCIES += $(if $(BR2_PACKAGE_PYTHON3),python3,python)
 else
 EVEMU_CONF_OPT += --disable-python-bindings
 endif