Fixed json_to_csv.py

Removed tkinter library

Author: ptr814

content/tmf8829/json_to_csv.py

@@ -18,7 +18,7 @@
 import json
 import csv
 import gzip
-from tkinter import filedialog as tk_fd
+# from tkinter import filedialog as tk_fd # not available in JupyterLite
 
 histogram_counter = 0
 
@@ -173,4 +173,4 @@ def dumpSection( data:dict, section_name:str, section_tag:str ) -> None:
 
     # record end time
     end = time.time()
-    print("Conversion finished in {:.3f}".format(end-start), "s")
+    print("Conversion finished in {:.3f}".format(end-start), "s")