Use double quotes instead of simple quotes

Follow advice from:
https://stackoverflow.com/questions/56011/single-quotes-vs-double-quotes-in-python

1 files changed, 6 insertions, 6 deletions

diff --git a/src/model/difficulty.py b/src/model/difficulty.py
index cbabd1e..e38f19b 100644
--- a/src/model/difficulty.py
+++ b/src/model/difficulty.py
@@ -13,18 +13,18 @@ values = [
 
 def format(difficulty: Difficulty) -> str:
     if difficulty == Difficulty.EASY:
-        return 'Easy'
+        return "Easy"
     elif difficulty == Difficulty.NORMAL:
-        return 'Normal'
+        return "Normal"
     elif difficulty == Difficulty.HARD:
-        return 'Hard'
+        return "Hard"
 
 def parse(string: str) -> Optional[Difficulty]:
-    if string == 'Easy':
+    if string == "Easy":
         return Difficulty.EASY
-    elif string == 'Normal':
+    elif string == "Normal":
         return Difficulty.MIDDLE
-    elif string == 'Hard':
+    elif string == "Hard":
         return Difficulty.HARD
     else:
         return None