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Are nested try/except blocks in python a good programming practice?
...efer to avoid nesting when it's not necessary:
def __getattribute__(self, item):
try:
return object.__getattribute__(item)
except AttributeError:
pass # fallback to dict
try:
return self.dict[item]
except KeyError:
raise AttributeError("The object do...
How to add url parameters to Django template url tag?
...
So you use this in your template:
{% url 'panel_person_form' person_id=item.id %}
If you have more than one param, you can change your regex and modify the template using the following:
{% url 'panel_person_form' person_id=item.id group_id=3 %}
...
How to sort a HashMap in Java [duplicate]
...
In Java 8:
Comparator<Entry<String, Item>> valueComparator =
(e1, e2) -> e1.getValue().getField().compareTo(e2.getValue().getField());
Map<String, Item> sortedMap =
unsortedMap.entrySet().stream().
sorted(valueComparator).
coll...
Delete a dictionary item if the key exists [duplicate]
Is there any other way to delete an item in a dictionary only if the given key exists, other than:
3 Answers
...
Sorting dropdown alphabetically in AngularJS
... @DaveEveritt one way to set a default (and to remove the blank item) is to pre-select a bound item for selected. For this example you can do something like $scope.selected = $scope.friends[0]. See this fiddle for a working sample.
– Gloopy
Apr 8 '13...
UINavigationBar custom back button without title
...tton displays back instead of the root view controller name
self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStylePlain target:nil action:nil];
Swift 2
self.navigationItem.backBarButtonItem = UIBarButtonItem(title: "", style: .Plain, target: ...
How do I exchange keys with values in a dictionary?
...
Python 2:
res = dict((v,k) for k,v in a.iteritems())
Python 3 (thanks to @erik):
res = dict((v,k) for k,v in a.items())
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how to change uiviewcontroller title independent of tabbar item title
...hange but not the one in the tabbar. This should do that.
[self.navigationItem setTitle:@"my title"];
Swift:
self.navigationItem.title = "My Title"
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Create a list from two object lists with linq
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This doesn't respond, Union will contains only items present in the two sets, not any element present in one of the two list
– J4N
Apr 12 '12 at 7:16
7
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What is the “FS”/“GS” register intended for?
...aded) when doing string operations - this at least is offset by one of the best character handling instruction sets of its time.
What really hurts is when user data exceeds 64 KiB and operations have to be commenced. While some operations are simply done on a single data item at a time (think A=A*2)...