How to create a range of dates in an array (macro) - datetime

Question

I'm trying to develop a macro to create a range of dates (datetime) that will be kept in an array.
I'm a beginner with Jinja (DBT dialect) and I'm very near a solution but it seems that something is missing.
I received an error message that let me think that this is only a problem of casting.
I want to keep all code inside a macro in DBT.
Here is my code (DBT macro in Jinja) to generate the array of dates (datetime in fact) :
{%- macro get_range_of_dates() -%}
{%- set dates = [] -%}
{%- set start = modules.datetime.datetime.strptime(var("currentDate"), "%Y-%m-%d") -%}
{%- set end = modules.datetime.datetime.now() -%}
{%- if start and end -%}
{%- set duration = (end - start).days + 1 -%}
{%- for day in range(0, duration) -%}
{%- set tempo = dbt.dateadd(datepart="day", interval=day, from_date_or_timestamp="'" ~ start ~ "'") -%}
{%- set final = modules.datetime.datetime.strptime(tempo,'%Y/%m/%d') -%}
{%- do dates.append(final) -%}
{%- endfor -%}
{%- endif -%}
{{ dates }}
{%- endmacro -%}
When I run this code, I received the following error message:
time data "\n\n dateadd(\n day,\n 0,\n '2023-02-07 00:00:00'\n )\n\n" does not match format '%Y/%m/%d'
(As you can guess with this message, my variable called "CurrentDate" coming from DBT is the first date of the range and is equal to "2023-02-07").
The question: How to keep the result of "dbt.dateadd...." as a datetime in variable "tempo" ?
Do I need to cast it ? and if yes, how ?
Many thanks in advance for your help.

Answer 1

I finally found myself a solution. I post it in case this can help someone.
The principal point where I was wrong was the utilization of the function "dbt.dateadd..." instead of the utilization of the function "timedelta(..." and also the fact that I didn't use directly the function "strftime" with the datetime object.
Here is the final code with comments:
{%- macro get_range_of_dates() -%}
{# Create an empty array to keep all dates #}
{%- set datesArray = [] -%}
{# Create a date representing the starting date of the range from a variable defined in dbt_project.yml #}
{%- set start = modules.datetime.datetime.strptime(var("currentDate"), "%Y-%m-%d") -%}
{# Create a date reprsenting the ending date of the range (always currentDay) #}
{%- set end = modules.datetime.datetime.now() -%}
{# If start and end variables are not empty...#}
{%- if start and end -%}
{# Calculate the lenght of the range #}
{%- set duration = (end - start).days + 1 -%}
{# Loop the range #}
{%- for day in range(0, duration) -%}
{# Add one day at each iteration #}
{%- set dateIterated = (start + modules.datetime.timedelta(day)) -%}
{# Convert datetime to string with the desired format #}
{%- set finalDate = dateIterated.strftime("%Y-%m-%d") -%}
{# Append the new date to the array of dates #}
{%- do datesArray.append(finalDate) -%}
{%- endfor -%}
{%- endif -%}
{# return the array of dates #}
{{ datesArray }} {%- endmacro -%}
Here is the call:
select {{ get_range_of_dates() }} from
And here is the results of this call:
select
['2023-02-07', '2023-02-08', '2023-02-09', '2023-02-10', '2023-02-11', '2023-02-12', '2023-02-13', '2023-02-14', '2023-02-15', '2023-02-16', '2023-02-17', '2023-02-18', '2023-02-19', '2023-02-20'] from
Hoping that this can help somebody.
Regards.