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Python: Calculate number of days between two datetimes

Python Datetime: Exercise-33 with Solution

Write a Python program to calculate the number of days between two date times.

Sample Solution:

Python Code:

import datetime
from datetime import datetime

def differ_days(date1, date2):
    a = date1
    b = date2
    return (a-b).days
print()
print(differ_days((datetime(2016,10,12,0,0,0)), datetime(2015,12,10,0,0,0)))
print(differ_days((datetime(2016,10,12,0,0,0)), datetime(2015,12,10,23,59,59)))
print()

Sample Output: 

307                                                                                                           
306

Flowchart:

Flowchart: Calculate number of days between two datetime.

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Python: Tips of the Day

Maps the values of a list to a dictionary using a function, where the key-value pairs consist of the original value as the key and the result of the function as the value:

Example:

def tips_map_dictionary(itr, fn):
  ret = {}
  for a in itr:
    ret[a] = fn(a)
  return ret
print(tips_map_dictionary([2,4,6], lambda a: a * a))

Output:

{2: 4, 4: 16, 6: 36}

 

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