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Amazon S3 direct file upload from client browser - private key disclosure
...agram: http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingHTTPPOST.html
Example code: http://docs.aws.amazon.com/AmazonS3/latest/dev/HTTPPOSTExamples.html
The signed policy would go in your html in a form like this:
<html>
<head>
...
<meta http-equiv="Content-Type" conte...
Build a Basic Python Iterator
...ocol, which basically means they provide two methods: __iter__() and __next__().
The __iter__ returns the iterator object and is implicitly called
at the start of loops.
The __next__() method returns the next value and is implicitly called at each loop increment. This method raises a StopIter...
PEP 8, why no spaces around '=' in keyword argument or a default parameter value?
...keyword argument is essentially different than a variable assignment.
For example, there is plenty of code like this:
kw1 = some_value
kw2 = some_value
kw3 = some_value
some_func(
1,
2,
kw1=kw1,
kw2=kw2,
kw3=kw3)
As you see, it makes complete sense to assign a variable to a keyw...
How do I expand the output display to see more columns of a pandas DataFrame?
...here a way to widen the display of output in either interactive or script-execution mode?
19 Answers
...
Changing the cursor in WPF sometimes works, sometimes doesn't
...
Similar to my own answer, dated 3 years later(almost exactly!). I like the answers in this question, but the simplest one is always the most tempting :)
– Robin Maben
Jul 31 '12 at 13:58
...
git switch branch without discarding local changes
...wo commits per stash entry, in an unusual arrangement—are on no branch. Except for very short term special cases, though, I generally prefer making a normal commit. You can git reset --soft or git reset --mixed later, or use git commit --amend to shove it aside, when you're back to working on that...
Evenly space multiple views within a container view
... constraints to its nearest 'spacer views'.
Note: Be sure you DON'T have extra top/bottom space constraints on your labels to superview; just the ones to the 'space views'. This will be satisfiable since the top and bottom constraints are on 'Space View 1' and 'Spacer View 4' respectively.
Duh 1: ...
How to perform Callbacks in Objective-C
...
Normally, callbacks in objective C are done with delegates. Here's an example of a custom delegate implementation;
Header File:
@interface MyClass : NSObject {
id delegate;
}
- (void)setDelegate:(id)delegate;
- (void)doSomething;
@end
@interface NSObject(MyDelegateMethods)
- (void)myCla...
Appending a vector to a vector [duplicate]
... theory the std:: implementor can make it work. They can use non-standard extensions internally.
– MSalters
Mar 31 '10 at 10:38
7
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