[lib: datetime] Updation of a `datetime` object with a `timedelta` obj reflects the change in the `datetime` object but is not reflected in the value returned by the `timetuple()` function

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
45/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
python
Domain
embedded-iot

Research direction

Start by reproducing the discovery code on the Raspberry Pi Pico with MicroPython v1.23.0 and the datetime library installed via mip. Inspect the datetime implementation used by that package and verify that, after adding a timedelta, timetuple() reports the updated datetime values.

Written by the indexing model from the issue text.

Description

--- MicroPython v1.23.0 on 2024-06-02; Raspberry Pi Pico with RP2040 ---
-- Datetime library installed via mip (mpremote) so: mpremote mip install datetime

Discovery code:

>>> from datetime import datetime, timedelta
>>> from utime import time, localtime, mktime

>>> interval_s = 5 * 60
>>> intervals_passed_in_hr = total_seconds_this_hr // interval_s
>>> next_interval_seconds_in_hr = (intervals_passed_in_hr + 1) * interval_s
>>> seconds_to_next_interval = next_interval_seconds_in_hr - total_seconds_this_hr
>>> next_record_time_dt = now + timedelta(seconds=seconds_to_next_interval)

>>> now
datetime.datetime(2024, 8, 21, 14, 53, 39, 0, None, fold=0)
>>> next_record_time_dt
datetime.datetime(2024, 8, 21, 14, 55, 0, 0, None, fold=0)
>>> next_record_time_dt.timetuple()[:-2]
(2024, 8, 21, 14, 53, 52)
Dominant language
Python
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Merged PRs (30d)
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