Using List in Routing

[lewysigns]

I have a list of strings I am trying to to pass using the url_pattern,url_dict arguments of the routing.set_url_hash but when I access the url_dict in the form routed to, the list is now a string " [ item 1 , item 2 ]".

Is there a simple way to resolve this?

[lewysigns]

I had to call eval on the list in my url_dict to convert them from the string to list

[stenci]

Careful!
Using eval on a string that anyone can feed to your app is very dangerous. I could go to this url: yourapp.com/#list=return password and see your password (assuming that there is a variable called password).

It's safe to write your own function to parse the url arguments.

[lewysigns]

Thanks.

I wrote this instead, leveraging what I know about the list:

def convert_string_list(string_list):
  try:
    # Remove surrounding brackets and whitespace
    string_list = string_list.strip()[1:-1]

    # Split the string by commas
    elements = string_list.split(',')

    # Remove leading/trailing whitespace from each element
    elements = [element.strip().strip("'") for element in elements]

    # Return the list of strings
    return elements
  except Exception as e:
    print(f"Error: {e}")
    return None

[lewysigns]

Found a better solution.

I originally tried to use json.loads, but it was failing because the url_dict uses single quotes.

I updated my method to do the following:

import jsondef convert_string(string_list):
  string = string_list.replace("'", "\"")
  if string == "None":
    return None
  return json.loads(string)