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Python: access class property from string [duplicate]
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edited Oct 1 '17 at 15:04
serv-inc
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putting current class as return type annotation [duplicate]
...issue has been resolved by not evaluating the annotations at function definition time. Instead, they are preserved in __annotations__ in string form. This is called Postponed Evaluation of Annotations, introduced in PEP 563.
Also note:
Deprecation policy
Starting with Python 3.7, a __futu...
What optimizations can GHC be expected to perform reliably?
GHC has a lot of optimizations that it can perform, but I don't know what they all are, nor how likely they are to be performed and under what circumstances.
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When should I use nil and NULL in Objective-C?
.... The main difference is that you can send messages to nil, so you can use it in some places where null cant work.
In general, just use nil.
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Elastic Search: how to see the indexed data
I had a problem with ElasticSearch and Rails, where some data was not indexed properly because of attr_protected. Where does Elastic Search store the indexed data? It would be useful to check if the actual indexed data is wrong.
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Python JSON serialize a Decimal object
...) in the next line,
# but that would mean a yield on the line with super(...),
# which wouldn't work (see my comment below), so...
return (str(o) for o in [o])
return super(DecimalEncoder, self).default(o)
Then use it like so:
json.dumps({'x': decimal.Dec...
ie8 var w= window.open() - “Message: Invalid argument.”
I have a site that has an IE8-only problem:
14 Answers
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How do I print the elements of a C++ vector in GDB?
I want to examine the contents of a std::vector in GDB, how do I do it? Let's say it's a std::vector<int> for the sake of simplicity.
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JavaScript pattern for multiple constructors
...ve differently depending on the number and types of parameters you pass to it, you'll have to sniff them manually. JavaScript will happily call a function with more or fewer than the declared number of arguments.
function foo(a, b) {
if (b===undefined) // parameter was omitted in call
b...
git rebase without changing commit timestamps
Would it make sense to perform git rebase while preserving the commit timestamps?
5 Answers
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