[damned-lies] Updated dir-related code

[Claude Paroz <claudep src gnome org>]

commit 513008eed40168b7d160ef5b5e9289e7a09cf9b5
Author: Claude Paroz <claude 2xlibre net>
Date:   Sat May 26 12:40:17 2018 +0200

    Updated dir-related code

 stats/models.py | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)
---
diff --git a/stats/models.py b/stats/models.py
index fcfa1f3b..28736868 100644
--- a/stats/models.py
+++ b/stats/models.py
@@ -156,15 +156,15 @@ class ModuleLock(object):
     def __init__(self, mod):
         assert isinstance(mod, Module)
         self.module = mod
-        self.dirpath = os.path.join("/tmp", "updating-%s" % (self.module.name,))
+        self.dirpath = os.path.join("/tmp", "updating-%s" % self.module.name)
 
     def __enter__(self):
         while True:
             try:
                 os.mkdir(self.dirpath)
-                break;
-            except OSError:
-                # The directory exists, something is happening on the module, let's wait
+                break
+            except FileExistsError:
+                # Something is happening on the module, let's wait
                 sleep(10)
 
     def __exit__(self, *exc_info):
@@ -570,9 +570,7 @@ class Branch(models.Model):
         modulepath = self.co_path
         scmroot = self.module.vcs_root
 
-        try: os.makedirs(localroot)
-        except: pass
-
+        os.makedirs(localroot, exist_ok=True)
         command_list = []
         if self._exists():
             command_list.extend(self.update_repo(execute=False))