How to convert .ipynb into .py files

import json 
import osfile_name = input("Enter the path of '.ipynb' file:")
save_file_name = file_name.split("\\")[-1].split(".")[0]print(save_file_name)# Opening JSON file 
f = open(file_name) 
  
# returns JSON object as  
# a dictionary 
data = json.load(f)total_cells = len(data['cells'])code = []
  
# Iterating through the json 
# list 
for cell in data['cells']: 
    if cell['cell_type'] == "code":
        for source in cell["source"]:
            if not source.endswith("\n"):
                source=source+"\n"
                #print(source)
            code.append(source)# Closing file 
f.close()
'''
for c in code:
    if not c.endswith("\n"):
        print(c)'''pyfile = open(f"{save_file_name}.txt","w+")
for c in code:
    pyfile.write(c)
pyfile.close()os.rename(f"{save_file_name}.txt",f"{save_file_name}.py")
print("Done Conversion")