1#!/usr/bin/env python3 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 Convert a date time string to the desired format. 13 14 This function converts a date time string to the desired format. 15 The function takes the date_str argument, which can be a single date time 16 string or a list of date time strings. 17 18 The function also accepts date_format and desired_format arguments, which 19 specify the input date time pattern and the desired output format, 20 respectively. 21 22 The function returns a list of date time strings in the desired format. 23 24 Parameters: 25 date_str (str or list): A date time string or a list of date time 26 strings. 27 date_format (str): The date time pattern of the input string(s). 28 desired_format (str): The desired output format for the date time 29 strings. 30 31 Returns: 32 list: A list of date time strings in the desired format. 33 """ 34 if isinstance(date_str, list): 35 tmp_date = [] 36 for date in date_str: 37 tmp_date.append( 38 datetime.strptime(date, date_format).strftime(desired_format) 39 ) 40 return tmp_date 41 else: 42 return datetime.strptime(date_str, date_format).strftime( 43 desired_format 44 ) 45