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How can I hash a password in Java?
I need to hash passwords for storage in a database. How can I do this in Java?
13 Answers
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How do you debug PHP scripts? [closed]
...n the same environment as javascript.
I also use Xdebug mentioned earlier for profiling php.
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edited Oct 7 '15 at 8:29
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How do you programmatically set an attribute?
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setattr(x, attr, 'magic')
For help on it:
>>> help(setattr)
Help on built-in function setattr in module __builtin__:
setattr(...)
setattr(object, name, value)
Set a named attribute on an object; setattr(x, 'y', v) is equivalent to
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Is there any difference between “foo is None” and “foo == None”?
...jects of type Foo it always returns true. There isn't an equivalent method for the is operator and so the behaviour of is cannot be changed in the same way.
– Brendan
Mar 3 '17 at 14:55
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while (1) vs. while(True) — Why is there a difference (in python 2 bytecode)?
Intrigued by this question about infinite loops in perl: while (1) Vs. for (;;) Is there a speed difference? , I decided to run a similar comparison in python. I expected that the compiler would generate the same byte code for while(True): pass and while(1): pass , but this is actually not the c...
Get ID of last inserted document in a mongoDB w/ Java driver
... edited May 7 '19 at 9:13
Paolo Forgia
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answered Jul 26 '10 at 21:41
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Convert decimal to binary in python [duplicate]
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"{0:#b}".format(my_int)
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How to implement a queue with three stacks?
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SUMMARY
O(1) algorithm is known for 6 stacks
O(1) algorithm is known for 3 stacks, but using lazy evaluation which in practice corresponds to having extra internal data structures, so it does not constitute a solution
People near Sedgewick have confirmed th...
How do I find the location of my Python site-packages directory?
...kages") directories are listed in sys.path when you run:
python -m site
For a more concise list run getsitepackages from the site module in Python code:
python -c 'import site; print(site.getsitepackages())'
Note: With virtualenvs getsitepackages is not available, sys.path from above will list...
Multiple linear regression in Python
...odel
clf = linear_model.LinearRegression()
clf.fit([[getattr(t, 'x%d' % i) for i in range(1, 8)] for t in texts],
[t.y for t in texts])
Then clf.coef_ will have the regression coefficients.
sklearn.linear_model also has similar interfaces to do various kinds of regularizations on the regr...