Python – Convert a string with date and time to a date

datetimepython

I've got this date time string:

post["date"] = "2007-07-18 10:03:19"

I'd like to extract just "2007-07-18" as a date. I've seen some reference to strptime but I'm not sure how to use it. How can I extract the date from this string?

Best Solution

The other two answers are fine, but if you actually want the date for something else, you can use the datetime module:

from datetime import datetime
d = datetime.strptime('2007-07-18 10:03:19', '%Y-%m-%d %H:%M:%S')
day_string = d.strftime('%Y-%m-%d')

It might be overkill for now, but it'll come in useful. You can see all of the format specifiers here.

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Python – Calling a function of a module by using its name (a string)

Assuming module foo with method bar:

import foo
method_to_call = getattr(foo, 'bar')
result = method_to_call()

You could shorten lines 2 and 3 to:

result = getattr(foo, 'bar')()

if that makes more sense for your use case.

You can use getattr in this fashion on class instance bound methods, module-level methods, class methods... the list goes on.

Python – How to get the current time in Python

Use:

>>> import datetime
>>> datetime.datetime.now()
datetime.datetime(2009, 1, 6, 15, 8, 24, 78915)

>>> print(datetime.datetime.now())
2009-01-06 15:08:24.789150

And just the time:

>>> datetime.datetime.now().time()
datetime.time(15, 8, 24, 78915)

>>> print(datetime.datetime.now().time())
15:08:24.789150

See the documentation for more information.

To save typing, you can import the datetime object from the datetime module:

>>> from datetime import datetime

Then remove the leading datetime. from all of the above.

Best Solution

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