The best option for you is to create a Plugin (a Python Custom Recipe). Here https://academy.dataiku.com/latest/tutorial/plugins/recipe.html you can find a tutorial about that.
As it is explained there, if you have got a Python Code Recipe created, you can convert it to a Plugin by clicking "Convert to Plugin Recipe" (in Advanced tab) and then customize your recipe.json file with custom parameters :)
Note about parameters:
The field "params" holds a list of all the params for wich the user will be prompted for values in the Settings tab of the recipe.
The available parameter types are: STRING, INT, DOUBLE, BOOLEAN, PASSWORD, SELECT, MAP, COLUMN, COLUMNS, TEXTAREA