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Python Dates and Times in Python (2014) Dates and Times strftime & strptime

Kennedy Malonga
Kennedy Malonga
22,856 Points

Create a new function named from_string that takes two arguments: a date as a string and an strftime-compatible format s

time delta '15-9-24' does not match

timestrings.py
## Examples
# to_string(datetime_object) => "24 September 2012"
# from_string("09/24/12 18:30", "%m/%d/%y %H:%M") => datetime
import datetime

def to_string(datetime):
    datetime = datetime.strftime("%d %B %Y")
    return datetime

def from_string(date_object, datetimes):
    date_object = datetime.datetime.strptime(date_object, '%d %B %Y')
    return datetimes

1 Answer

Steven Parker
Steven Parker
229,952 Points

You're close, but when you call strptime you need to use the 2nd supplied argument instead of a literal format.

Also, you need to return the constructed object instead of the 2nd argument.

Hint: It might be less confusing if you create the object in a new variable instead of re-using one of the parameters.

Asher Orr
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Asher Orr
Python Development Techdegree Graduate 9,408 Points

^ To help with understanding Steven's suggestions:

import datetime

def to_string(datetime):
    datetime = datetime.strftime("%d %B %Y")
    return datetime

def from_string(date_object, datetimes):
    date_object = datetime.datetime.strptime(date_object, '%d %B %Y')
    #in the line above, '%d %B %Y' should be changed to datetimes.
    #when the you click "Check Work," the challenge will run your from_string function.
    #it will come up with an strftime-compatible format string and pass it in as the second argument
    #instead of specifying a formatted string in date_object, just let it be your second argument (datetimes)
    return datetimes
    #datetimes is the second argument of your from_string function.
    #the datetime object you constructed, date_object, is what you need to return

I hope this helps. Let me know if you have any questions!