mulled: use threading.Event in PrintProgress to avoid unnecessary waiting

.travis.yml

@@ -2,10 +2,10 @@ language: python
 python: 2.7
 env:
   - TOX_ENV=py27-lint
-  - TOX_ENV=py34-lint
+  - TOX_ENV=py35-lint
   - TOX_ENV=py27-lint-readme
   - TOX_ENV=py27
-  - TOX_ENV=py34
+  - TOX_ENV=py35
   - TOX_ENV=py27-lint-docstring-include-list
 
 install:

galaxy/tools/deps/mulled/util.py

@@ -226,21 +226,21 @@ def v2_image_name(targets, image_build=None, name_override=None):
 class PrintProgress(object):
     def __init__(self):
         self.thread = threading.Thread(target=self.progress)
-        self.stop = False
+        self.stop = threading.Event()
 
     def progress(self):
-        while not self.stop:
+        while not self.stop.is_set():
             print(".", end="")
             sys.stdout.flush()
-            time.sleep(60)
+            self.stop.wait(60)
         print("")
 
     def __enter__(self):
         self.thread.start()
         return self
 
     def __exit__(self, exc_type, exc_val, exc_tb):
-        self.stop = True
+        self.stop.set()
         self.thread.join()
 
 

tox.ini

@@ -1,6 +1,6 @@
 # TODO: implement doc linting
 [tox]
-envlist = py34-lint, py27-lint, py27-lint-readme, py27, py34, py27-lint-docstring, py27-lint-docstring-include-list
+envlist = py35-lint, py27-lint, py27-lint-readme, py27, py35, py27-lint-docstring, py27-lint-docstring-include-list
 source_dir = galaxy
 test_dir = tests
 
@@ -19,7 +19,7 @@ deps =
      flake8
      flake8-import-order
 
-[testenv:py34-lint]
+[testenv:py35-lint]
 commands = flake8 {[tox]source_dir} {[tox]test_dir}
 skip_install = True
 deps = flake8