Merge pull request #1067 from ZyX-I/fix-1066

Add proper errno attribute to exception raised by uv watcher

powerline/lib/watcher/uv.py

@@ -7,6 +7,7 @@ from collections import defaultdict
 from threading import RLock
 from functools import partial
 from threading import Thread
+from errno import ENOENT
 
 from powerline.lib.path import realpath
 
@@ -76,7 +77,7 @@ class UvWatcher(object):
 				except pyuv.error.FSEventError as e:
 					code = e.args[0]
 					if code == pyuv.errno.UV_ENOENT:
-						raise OSError('No such file or directory: ' + path)
+						raise OSError(ENOENT, 'No such file or directory: ' + path)
 					else:
 						raise
 

tests/test_watcher.py

@@ -6,6 +6,7 @@ import os
 
 from time import sleep
 from functools import partial
+from errno import ENOENT
 
 from powerline.lib.watcher import create_file_watcher, create_tree_watcher, INotifyError
 from powerline.lib.watcher.uv import UvNotFound
@@ -168,6 +169,10 @@ class TestFilesystemWatchers(TestCase):
 						pass
 			ne = os.path.join(INOTIFY_DIR, 'notexists')
 			self.assertRaises(OSError, w, ne)
+			try:
+				w(ne)
+			except OSError as e:
+				self.assertEqual(e.errno, ENOENT)
 			self.assertTrue(w(f1))
 			self.assertFalse(w.is_watching(ne))
 			self.assertTrue(w.is_watching(f1))