From 66e344a5e5b4ac6937a98d7b976a55eef1561446 Mon Sep 17 00:00:00 2001
From: Pascal Lais <pascal@lais.dev>
Date: Sat, 18 Dec 2021 20:39:37 +0100
Subject: [PATCH] Replace 'type() is' with 'isinstance()'

---
 day-18/day-18.py | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/day-18/day-18.py b/day-18/day-18.py
index acbde30..4b59717 100644
--- a/day-18/day-18.py
+++ b/day-18/day-18.py
@@ -33,12 +33,12 @@ def parse(line):
 def explode_to_left(n, l):
     (left, right) = n
     res = True
-    if type(right) == int:
+    if isinstance(right, int):
         right = right + l
     else:
         res, right = explode_to_left(right, l)
         if not res:
-            if type(left) == int:
+            if isinstance(left, int):
                 left = left + l
                 res = True
             else:
@@ -51,12 +51,12 @@ def explode_to_left(n, l):
 def explode_to_right(n, r):
     (left, right) = n
     res = True
-    if type(left) == int:
+    if isinstance(left, int):
         left = left + r
     else:
         res, left = explode_to_right(left, r)
         if not res:
-            if type(right) == int:
+            if isinstance(right, int):
                 right = right + r
                 res = True
             else:
@@ -67,10 +67,10 @@ def explode_to_right(n, r):
 
 
 def explode(n, lvl=0):
-    if type(n) is int:
+    if isinstance(n, int):
         return False, n, None, None
     (left, right) = n
-    if lvl == 4 and type(left) is int and type(right) is int:
+    if lvl == 4 and isinstance(left, int) and isinstance(right, int):
         return True, 0, left, right
     else:
         res, left, l, r = explode(left, lvl+1)
@@ -80,7 +80,7 @@ def explode(n, lvl=0):
                 return False, n, None, None
             else:
                 if l:
-                    if type(left) is int:
+                    if isinstance(left, int):
                         left = left + l
                         l = None
                     else:
@@ -90,7 +90,7 @@ def explode(n, lvl=0):
                 return True, (left, right), l, r
         else:
             if r:
-                if type(right) is int:
+                if isinstance(right, int):
                     right = right + r
                     r = None
                 else:
@@ -101,7 +101,7 @@ def explode(n, lvl=0):
 
 
 def split(n):
-    if type(n) is int:
+    if isinstance(n, int):
         if 10 <= n:
             return True, (n // 2, (n + 1) // 2)
         else:
@@ -116,11 +116,11 @@ def split(n):
 def magnitude(n):
     m = 0
     (left, right) = n
-    if type(left) is int:
+    if isinstance(left, int):
         m += 3 * left
     else:
         m += 3 * magnitude(left)
-    if type(right) is int:
+    if isinstance(right, int):
         m += 2 * right
     else:
         m += 2 * magnitude(right)