In Python, you can perform arithmetic with date objects from the datetime module. You can add or subtract a timedelta object to a date object to get a new date object.

Here are some examples:

import datetime
 
# Create a date object for March 14, 2022
my_date = datetime.date(2022, 3, 14)
 
# Add one day
next_day = my_date + datetime.timedelta(days=1)
print(next_day)  # 2022-03-15
 
# Subtract one week
last_week = my_date - datetime.timedelta(weeks=1)
print(last_week)  # 2022-03-07
 
# Calculate the difference between two dates
other_date = datetime.date(2022, 4, 1)
difference = other_date - my_date
print(difference)  # 18 days, 0:00:00

In this example, we create a date object for March 14, 2022 and then add one day to get a new date object for March 15, 2022. We also subtract one week to get a new date object for March 7, 2022. Finally, we create another date object for April 1, 2022 and calculate the difference between the two dates, which is 18 days.