Use exist_ok=True for os.path.makedirs

See #2570

qutebrowser/browser/downloads.py

@@ -79,10 +79,7 @@ def download_dir():
     else:
         ddir = directory
 
-    try:
+    os.makedirs(ddir, exist_ok=True)
-        os.makedirs(ddir)
-    except FileExistsError:
-        pass
 
     return ddir
 
@@ -692,9 +689,7 @@ class AbstractDownloadItem(QObject):
         global last_used_directory
 
         try:
-            os.makedirs(os.path.dirname(self._filename))
+            os.makedirs(os.path.dirname(self._filename), exist_ok=True)
-        except FileExistsError:
-            pass
         except OSError as e:
             self._die(e.strerror)
 

qutebrowser/browser/urlmarks.py

@@ -240,8 +240,7 @@ class BookmarkManager(UrlMarkManager):
 
     def _init_lineparser(self):
         bookmarks_directory = os.path.join(standarddir.config(), 'bookmarks')
-        if not os.path.isdir(bookmarks_directory):
+        os.makedirs(bookmarks_directory, exist_ok=True)
-            os.makedirs(bookmarks_directory)
 
         bookmarks_subdir = os.path.join('bookmarks', 'urls')
         self._lineparser = lineparser.LineParser(

qutebrowser/misc/lineparser.py

@@ -72,8 +72,7 @@ class BaseLineParser(QObject):
         Return:
             True if the file should be saved, False otherwise.
         """
-        if not os.path.exists(self._configdir):
+        os.makedirs(self._configdir, 0o755, exist_ok=True)
-            os.makedirs(self._configdir, 0o755)
         return True
 
     def _after_save(self):

qutebrowser/utils/standarddir.py

@@ -290,10 +290,7 @@ def _create(path):
         0700. If the destination directory exists already the permissions
         should not be changed.
     """
-    try:
+    os.makedirs(path, 0o700, exist_ok=True)
-        os.makedirs(path, 0o700)
-    except FileExistsError:
-        pass
 
 
 def _init_dirs(args=None):