fix tests by properly removing __pycache__ files

setup.py

@@ -13,7 +13,7 @@ setup(
     packages = ['xdist'],
     entry_points = {'pytest11': ['xdist = xdist.plugin'],},
     zip_safe=False,
-    install_requires = ['execnet>=1.0.8', 'pytest>=2.2.1.dev2'],
+    install_requires = ['execnet>=1.0.8', 'pytest>=2.2.1.dev5'],
     classifiers=[
     'Development Status :: 5 - Production/Stable',
     'Intended Audience :: Developers',

testing/test_looponfail.py

@@ -88,16 +88,14 @@ class TestRemoteControl:
         assert not failures
 
     def test_failures_somewhere(self, testdir):
-        item = testdir.getitem("def test_func(): assert 0\n")
+        item = testdir.getitem("def test_func():\n assert 0\n")
         control = RemoteControl(item.config)
         control.setup()
         failures = control.runsession()
         assert failures
         control.setup()
-        item.fspath.write("def test_func(): assert 1\n")
-        pyc = item.fspath.new(ext=".pyc")
-        if pyc.check():
-            pyc.remove()
+        item.fspath.write("def test_func():\n assert 1\n")
+        removepyc(item.fspath)
         topdir, failures = control.runsession()[:2]
         assert not failures
 
@@ -115,9 +113,7 @@ class TestRemoteControl:
             def test_new():
                 assert 0
         """))
-        pyc = modcol.fspath.new(ext=".pyc")
-        if pyc.check():
-            pyc.remove()
+        removepyc(modcol.fspath)
         control.loop_once()
         assert not control.failures
         control.loop_once()
@@ -252,4 +248,7 @@ def removepyc(path):
     pyc = path + "c"
     if pyc.check():
         pyc.remove()
+    c = path.dirpath("__pycache__")
+    if c.check():
+        c.remove()