1.3.x-beta config.json file check

Author: whellcome

code/export-msaccess-sql.py

@@ -3,8 +3,6 @@
 import webbrowser
 import win32com.client
 from tkextras import *
-import pandas as pd
-import io
 import json
 
 
@@ -43,7 +41,6 @@ def __init__(self, render_params=None, *args, **options):
         self.tree.bind("<<TreeFilterUpdated>>", self.on_filter_updated)
         self.tree.bind("<<TreeCheckAllUpdated>>", self.on_check_all_updated)
         self.tree.bind("<<TreeToggleCell>>", self.on_toggle_cell)
-
         self.scrollbar = ttk.Scrollbar(self.frame1, orient="vertical", command=self.tree.yview)
         self.tree.configure(yscrollcommand=self.scrollbar.set)
         self.create_widgets()
@@ -133,14 +130,42 @@ def btn_openf(self):
         self.db_path.set(db_path)
         self.update_widgets()
 
+    def save_config(self):
+        config = {
+            "info": "MS Access to SQL Export configuration file",
+            "db_path": self.db_path.get(),
+            "tree": self.tree.df.to_dict()
+        }
+        with open('config.json', 'w') as f:
+            json.dump(config, f, indent = 4)
+
+    def load_config(self, fpath='config.json'):
+        try:
+            with open(fpath, 'r') as f:
+                config = json.load(f)
+            if config['info'] and (config['info'] == "MS Access to SQL Export configuration file"):
+                self.db_path.set(config["db_path"])
+                self.update_widgets()
+                self.tree.df = self.tree.df.from_dict(config["tree"])
+                self.tree.rebuild_tree()
+                self.update_column_style()
+            else:
+                raise
+        except:
+            fpath = filedialog.askopenfilename(filetypes=[("JSON files", "*.json")])
+            if fpath:
+                self.load_config(fpath)
+
+
     def update_widgets(self):
-        self.label1['text'] = f"MS Access database for export: \"{self.db_path.get().split('/')[-1]}\""
-        self.label1.update()
         self.db_connect()
         if self.check_permissions():
+            self.label1['text'] = f"MS Access database for export: \"{self.db_path.get().split('/')[-1]}\""
+            self.label1.update()
             self.make_tree()
             self.recreate_widgets()
 
+
     def show_permission_warning(self):
         def open_link(event):
             warning_window.destroy()
@@ -249,24 +274,6 @@ def export_prepare(self):
 
         return final_list, upload_list, output_sql_path
 
-    def save_config(self):
-        config = {
-            "db_path": self.db_path.get(),
-            "tree": self.tree.df.to_dict()
-        }
-        with open('config.json', 'w') as f:
-            json.dump(config, f, indent = 4)
-
-
-    def load_config(self):
-        with open('config.json', 'r') as f:
-            config = json.load(f)
-        self.db_path.set(config["db_path"])
-        self.update_widgets()
-        self.tree.df = self.tree.df.from_dict(config["tree"])
-        self.tree.rebuild_tree()
-        self.update_column_style()
-
     def export(self):
         export_lists = self.export_prepare()
         if not export_lists: