Based on the other answers, I think the cleanest solutions are #Handles None return from get_list for item in get_list() or []: pass #do something or the comprehension equiv result = [item*item for item in get_list() or []]
You probably want import datetime, not from datetime import datetime. date is a class on the datetime module, but it is also a method on the datetime.datetime class.
Remainder when dividing by 10, as in numericVariable % 10 This only works for positive numbers. -12%10 yields 8
Downloading Youtube videos is against their Terms of Service, so their API’s will not support that. Page linked above refers to Youtube ToS that states: You shall not download any Content unless you see a “download” or similar link displayed by YouTube on the Service for that Content.
I think you’re looking for this: from django.db.models.loading import get_model model = get_model(‘app_name’, ‘model_name’) There are other methods, of course, but this is the way I’d handle it if you don’t know what models file you need to import into your namespace. (Note there’s really no way to safely get a model without first knowing …
You could join the strings with a newline, and print the resulting string: print “\n”.join(op)
What you want to use is often called the “perp dot product”, that is, find the vector perpendicular to one of the vectors, and then find the dot product with the other vector. if(a.x*b.y – a.y*b.x < 0) angle = -angle; You can also do this: angle = atan2( a.x*b.y – a.y*b.x, a.x*b.x + a.y*b.y …
It hangs because after a certain point it can not write to it’s output pipe any longer. When you run a process it has 3 opened pipes for: stdin, stdout and stderr. A pipe has a memory buffer ( 4KB on Linux ) that can hold up to a certain amount of data and the …
import datetime a=”2010-01-31″ datee = datetime.datetime.strptime(a, “%Y-%m-%d”) datee.month Out[9]: 1 datee.year Out[10]: 2010 datee.day Out[11]: 31
You can create a model instance method with another name, allow HTML tags for its output and add this method as a list field. Here is an example: First add a new method returning the HTML for the image inclusion: class Article(models.Model): … def admin_image(self): return ‘<img src=”%s”/>’ % self.img admin_image.allow_tags = True Then add …