How to Compare Dates Only (And Not the Time) in Python

Cast your datetime object into a date object first. Once they are of the same type, the comparison will make sense.

if d2.date() == d1.date():
    print "same date" 
else:
    print "different date"

For your case above:-

In [29]: d2
Out[29]: datetime.date(2012, 1, 19)

In [30]: d1
Out[30]: datetime.datetime(2012, 1, 19, 0, 0)

So,

In [31]: print d2 == d1.date()
True

All you needed for your case was to make sure you are executing the date method with the brackets ().

For those who wants to compare specific date with today date.

import datetime

# Set specific date
date = '2020-11-21'

# Cast specific date to Date Python Object
date = datetime.datetime.strptime(date, '%Y-%m-%d').date()

# Get today date with Date Python Object
today = datetime.date.today()

# Compare the date
isYesterday = date < today
isToday     = date == today
isTomorrow  = date > today

>>> datetime.date.today() == datetime.datetime.today().date()
True

For more info

TL&DR:

The DateTime Object has a built in function called date(). You can use this to get the date only of the datetime object.

Example:

current_time_dt_object  = datetime.datetime.now()
current_time_only_date = current_time_dt_object.date()

You can now use this current_time_only_date as do any equality operation you want.