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Pythonic way to find maximum value and its index in a list?
...many options, for example:
import operator
index, value = max(enumerate(my_list), key=operator.itemgetter(1))
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Fragment is not being replaced but put on top of the previous one
...
It works doing this. But then when I start my application and immediately press the back button, I end up in a state where the fragment is empty, instead of exiting the app?
– MasterScrat
Feb 8 '17 at 14:16
...
How to rename items in values() in Django?
... could use the extra method:
MyModel.objects.extra(
select={
'renamed_value': 'cryptic_value_name'
}
).values(
'renamed_value'
)
This basically does SELECT cryptic_value_name AS renamed_value in the SQL.
Another option, if you always want the renamed version but the db has the cryptic nam...
How do I get the number of elements in a list?
...objects with a "size" in Python, in particular, have an attribute called ob_size, where the number of elements in the object is cached. So checking the number of objects in a list is very fast.
But if you're checking if list size is zero or not, don't use len - instead, put the list in a boolean co...
enum - getting value of enum on string conversion
...;>> member.name
'red'
>>> member.value
1
You could add a __str__ method to your enum, if all you wanted was to provide a custom string representation:
class D(Enum):
def __str__(self):
return str(self.value)
x = 1
y = 2
Demo:
>>> from enum import E...
SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed
I am using Authlogic-Connect for third party logins. After running appropriate migrations, Twitter/Google/yahoo logins seem to work fine but the facebook login throws exception:
...
__FILE__, __LINE__, and __FUNCTION__ usage in C++
...r C++ compiler supports them, is there any particular reason not to use __FILE__ , __LINE__ and __FUNCTION__ for logging and debugging purposes?
...
Why is Android Studio reporting “URI is not registered”? [closed]
...e, the same was true. If you are looking at different flavor-layout of the app's customized, then what is loaded by Android studio, you would get an error.
– Neeraj Shukla
Apr 8 '15 at 7:28
...
how to install gcc on windows 7 machine?
...x to install packages, and includes three environments, for building msys2 apps, 32-bit native apps, and 64-bit native apps. (You probably want to build 32-bit native apps.)
https://msys2.github.io/
You could also go full-monty and install code::blocks or some other gui editor that comes with a c...
Android ListView with different layouts for each row
...ecause Android OS keeps the layout reference to reuse your item when it disappears and appears back on the screen. If you don't use this approach, every single time that your item appears on the screen Android OS will create a new one and causing your app to leak memory.
public class ViewHolder {
...