1#!/usr/bin/env python
2
3r"""
4This module contains functions having to do with date time filter.
5"""
6
7from datetime import datetime
8
9
10def convert_string_dateime(date_str, date_format, desired_format):
11    r"""
12    Return a date time formatted from a string datetime.
13
14    Description of arguments(s):
15    date_str            Date time string e.g 2021072418161
16                        or list ["2021072418161", "20210723163401"]
17    date_format         Date time pattern of the string date time
18                        e.g '%Y%m%d%H%M%S'
19    desired_format      User define format e.g '%m/%d/%Y - %H:%M:%S'
20    """
21
22    if isinstance(date_str, list):
23        tmp_date = []
24        for date in date_str:
25            tmp_date.append(datetime.strptime(date, date_format).strftime(desired_format))
26        return tmp_date
27    else:
28        return datetime.strptime(date_str, date_format).strftime(desired_format)
29