comparison

Fix Python – Can’t compare naive and aware datetime.now() <= challenge.datetime_end

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I am trying to compare the current date and time with dates and times specified in models using comparison operators:
if challenge.datetime_start <= datetime.now() <= challenge.datetime_end: The script errors out with: TypeError: can't compare offset-naive and offset-aware datetimes The models look like this: class Fundraising_Challenge(models.....

Fix Python – Comparing two dictionaries and checking how many (key, value) pairs are equal

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I have two dictionaries, but for simplification, I will take these two:
>>> x = dict(a=1, b=2)
>>> y = dict(a=2, b=2)

Now, I want to compare whether each key, value pair in x has the same corresponding value in y. So I wrote this:
>>> for x_values, y_values in zip(x.iteritems(), y.iteritems()):
if x_values == y_values:
print ‘….

Fix Python – Check if all elements in a list are identical

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I need a function which takes in a list and outputs True if all elements in the input list evaluate as equal to each other using the standard equality operator and False otherwise.
I feel it would be best to iterate through the list comparing adjacent elements and then AND all the resulting Boolean values. But I’m not sure what’s the most Pythonic….

Fix Python – How to test multiple variables for equality against a single value?

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I’m trying to make a function that will compare multiple variables to an integer and output a string of three letters. I was wondering if there was a way to translate this into Python. So say:
x = 0
y = 1
z = 3
mylist = []

if x or y or z == 0:
mylist.append(“c”)
if x or y or z == 1:
mylist.append(“d”)
if x or y or z == 2:
mylist.appen….