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What is the easiest way to get current GMT time in Unix timestamp format?
Python provides different packages ( datetime , time , calendar ) as can be seen here in order to deal with time. I made a big mistake by using the following to get current GMT time time.mktime(datetime.datetime.utcnow().timetuple())
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Get the cartesian product of a series of lists?
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itertools.product
Available from Python 2.6.
import itertools
somelists = [
[1, 2, 3],
['a', 'b'],
[4, 5]
]
for element in itertools.product(*somelists):
print(element)
Which is the same as,
for element in itertools.product([1, 2, 3], ['a',...
Rename a dictionary key
... a new key and removing the old key is how you can achieve the "rename" in python.
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What's the difference between django OneToOneField and ForeignKey?
...eld(Engine)
Car2 model uses ForeignKey(Engine2, unique=True)
From within python manage.py shell execute the following:
OneToOneField Example
>>> from testapp.models import Car, Engine
>>> c = Car.objects.get(name='Audi')
>>> e = Engine.objects.get(name='Diesel')
>&g...
What's the difference between lists enclosed by square brackets and parentheses in Python?
...ove 'y=x' example , list and tuple behave in the same way now (verified in python3.8.5)
– Youjun Hu
Aug 15 at 9:11
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Is there a decorator to simply cache function return values?
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Starting from Python 3.2 there is a built-in decorator:
@functools.lru_cache(maxsize=100, typed=False)
Decorator to wrap a function with a memoizing callable that saves up to the maxsize most recent calls. It can save time when an expen...
Python: access class property from string [duplicate]
I have a class like the following:
4 Answers
4
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Convert all strings in a list to int
In Python, I want to convert all strings in a list to integers.
4 Answers
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