Why does this return AttributeError: __enter__

Sorting method is just a string created based on how the list is sorted, and current time uses stfttime

current_time = strftime("%Y-%m-%d %H-%M-%S", gmtime())filename = f"Komplett-{str(sorting_method)}-{str(current_time)}.txt"
if not os.path.exists(f'C:/Users/tagp/OneDrive/Dokumenter/Python/{filename}'):open(str(filename), "w+")   
with (filename, "w+") as json_data:my_list = {}my_list["products"] = []for thing in my_products:my_list["products"].append({"Product Title":thing.title,"Price":thing.price,"Rating":thing.rating,"Stock":thing.stock})json.dump(my_list, json_data, indent = 4)

Full traceback:

Traceback (most recent call last):File "komplett.py", line 172, in <module>with (filename, "w") as json_data:
AttributeError: __enter__

You just for got to use open

current_time = strftime("%Y-%m-%d %H-%M-%S", gmtime())filename = f"Komplett-{str(sorting_method)}-{str(current_time)}.txt"
if not os.path.exists(f'C:/Users/tagp/OneDrive/Dokumenter/Python/{filename}'):open(str(filename), "w+")   
with open(filename, "w+") as json_data:my_list = {}my_list["products"] = []for thing in my_products:my_list["products"].append({"Product Title":thing.title,"Price":thing.price,"Rating":thing.rating,"Stock":thing.stock})json.dump(my_list, json_data, indent = 4)