From de2995f783738979c82b2e7a7bbc47dba6e0a816 Mon Sep 17 00:00:00 2001
From: pinkman199810 <467517960@qq.com>
Date: Tue, 11 Apr 2023 15:06:32 +0800
Subject: [PATCH 1/3] bug fix for PPOCRLabel.exportJSON NameError: name 'null'
 is not defined

---
 PPOCRLabel/PPOCRLabel.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/PPOCRLabel/PPOCRLabel.py b/PPOCRLabel/PPOCRLabel.py
index 6c8154d1c9..8262fca125 100644
--- a/PPOCRLabel/PPOCRLabel.py
+++ b/PPOCRLabel/PPOCRLabel.py
@@ -2469,6 +2469,7 @@ def exportJSON(self):
                     if label:
                         label = label.replace('false', 'False')
                         label = label.replace('true', 'True')
+                        label = label.replace('null', 'Null')
                         labeldict[file] = eval(label)
                     else:
                         labeldict[file] = []

From 6ae7def2a6b966ed36bd9009d233ca45096c1bbe Mon Sep 17 00:00:00 2001
From: pinkman199810 <467517960@qq.com>
Date: Fri, 14 Apr 2023 10:58:10 +0800
Subject: [PATCH 2/3] changed the replace content

---
 PPOCRLabel/PPOCRLabel.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/PPOCRLabel/PPOCRLabel.py b/PPOCRLabel/PPOCRLabel.py
index 8262fca125..f6521e1739 100644
--- a/PPOCRLabel/PPOCRLabel.py
+++ b/PPOCRLabel/PPOCRLabel.py
@@ -2469,7 +2469,7 @@ def exportJSON(self):
                     if label:
                         label = label.replace('false', 'False')
                         label = label.replace('true', 'True')
-                        label = label.replace('null', 'Null')
+                        label = label.replace('null', 'None')
                         labeldict[file] = eval(label)
                     else:
                         labeldict[file] = []

From 92996c995d6834e9e66059fc9b2bc7d6f8175510 Mon Sep 17 00:00:00 2001
From: pinkman199810 <467517960@qq.com>
Date: Mon, 17 Apr 2023 09:31:56 +0800
Subject: [PATCH 3/3] also fix "loadLabelFile" method

---
 PPOCRLabel/PPOCRLabel.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/PPOCRLabel/PPOCRLabel.py b/PPOCRLabel/PPOCRLabel.py
index f6521e1739..200b914c4c 100644
--- a/PPOCRLabel/PPOCRLabel.py
+++ b/PPOCRLabel/PPOCRLabel.py
@@ -2615,6 +2615,7 @@ def loadLabelFile(self, labelpath):
                     if label:
                         label = label.replace('false', 'False')
                         label = label.replace('true', 'True')
+                        label = label.replace('null', 'None')
                         labeldict[file] = eval(label)
                     else:
                         labeldict[file] = []