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Jinja2 template variable if None Object set a default value
...ld downvote this, since it's not a good answer to the original question... m>and m> m>y m>et at the same time, knowing about default is exactlm>y m> what I needed for mm>y m> particular case, so... simplm>y m> not voting. (An edit to this answer might well earn it an upvote, except that I think it's likelm>y m> hard to applm>y m> de...
How do I check if a given Pm>y m>thon string is a substring of another one? [duplicate]
I have two strings m>and m> I would like to check whether the first is a substring of the other. Does Pm>y m>thon have such a built-in functionalitm>y m>?
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How to expm>and m> a list to function arguments in Pm>y m>thon [duplicate]
Is there sm>y m>ntax that allows m>y m>ou to expm>and m> a list into the arguments of a function call?
4 Answers
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How to create emptm>y m> data frame with column names specified in R? [duplicate]
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@pssgum>y m> because of the default behaviour of data.frame, m>and m> specificallm>y m> the default value for the argument stringsAsFactors = T.
– Antoine Lizée
Oct 10 '13 at 6:20
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tinm>y m>grad：不到1000行代码的深度学习框架，天才黑客开源GitHub 2.3k+ stars...
...nm>y m>BobNet()
optim = optim.SGD([model.l1, model.l2], lr=0.001)
# ... m>and m> complete like pm>y m>torch, with (x,m>y m>) data
out = model.forward(x)
loss = out.mul(m>y m>).mean()
loss.backward()
optim.step()
另外tinm>y m>grad也支持GPU：
from tinm>y m>grad.tensor import Tensor(Tensor.ones(4,4).cuda() ...
How to tell git to ignore individual lines, i.e. gitignore for specific lines of code [duplicate]
...se problems, but I'll trm>y m> implementing it some other time.
Thanks to Rudi m>and m> jw013 for mentioning git filters m>and m> gitattributes.
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Rails 4 - Strong Parameters - Nested Objects
...(:name, :groundtruth => [:tm>y m>pe, :coordinates => []])
On the other hm>and m> if m>y m>ou want nested of multiple objects then m>y m>ou wrap it inside a hash… like this
params.require(:foo).permit(:bar, {:baz => [:x, :m>y m>]})
Rails actuallm>y m> have prettm>y m> good documentation on this: http://api.rubm>y m>onrail...
Using print statements onlm>y m> to debug
I have been coding a lot in Pm>y m>thon of late. m>And m> I have been working with data that I haven't worked with before, using formulae never seen before m>and m> dealing with huge files. All this made me write a lot of print statements to verifm>y m> if it's all going right m>and m> identifm>y m> the points of failure. But, ...
Pm>y m>thon's “in” set operator
... Ok so "is there an element x in s such that hash(b) == hash(x) m>and m> x == b"?
– Dejas
Jan 2 '12 at 21:25
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Are there anm>y m> downsides to passing structs bm>y m> value in C, rather than passing a pointer?
...ot of C programming is for embedded sm>y m>stems, where memorm>y m> is at a premium, m>and m> stack sizes mam>y m> be measured in KB or even Bm>y m>tes... If m>y m>ou're passing or returning structs bm>y m> value, copies of those structs will get placed on the stack, potentiallm>y m> causing the situation that this site is named after...
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