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Generating an MD5 checksum of a file
... to for security issues is impossible. IMHO, it should be flat out removed from the library so everybody who uses it is forced to update. So, here's what you should do instead:
[(fname, hashlib.sha256(file_as_bytes(open(fname, 'rb'))).digest()) for fname in fnamelst]
If you only want 128 bits wor...
How do I convert a PDF document to a preview image in PHP? [closed]
...
From my answer below - If you're loading the PDF from a blob this is how you get the first page instead of the last page: $im->readimageblob($blob); $im->setiteratorindex(0);
– jrjohnson
...
Update parent scope variable in AngularJS
...one wrapped within another. Now I know the child scope inherits properties from the parent scope but is there a way to update the parent scope variable? So far I have not come across any obvious solutions.
...
How to redirect cin and cout to files?
...)
{
std::string line;
while(std::getline(std::cin, line)) //input from the file in.txt
{
std::cout << line << "\n"; //output to the file out.txt
}
}
int main()
{
std::ifstream in("in.txt");
std::streambuf *cinbuf = std::cin.rdbuf(); //save old buf
s...
What is wrong with using goto? [duplicate]
...oops. For example, extract the nested loops into a new function and return from there when the condition that triggers the goto is satisfied. I only see goto being used only to get an extra bit of performance
– mljrg
Oct 4 '19 at 9:57
...
How to frame two for loops in list comprehension python
... [entry for tag in tags for entry in entries if tag in entry]
>>> from itertools import chain
>>> list(chain.from_iterable(result))
[u'man', u'thats', u'right', u'awesome']
Adding this together, you could just do
>>> list(chain.from_iterable(entry for tag in tags for en...
What is a good regular expression to match a URL? [duplicate]
...
These are the droids you're looking for. This is taken from validator.js which is the library you should really use to do this. But if you want to roll your own, who am I to stop you? If you want pure regex then you can just take out the length check. I think it's a good idea ...
How do I calculate square root in Python?
... If you want your Python 2.x code to behave like 3.x w.r.t. division write from __future__ import division - then 1/2 will evaluate to 0.5 and for backwards compatibility, 1//2 will evaluate to 0.
And for the record, the preferred way to calculate a square root is this:
import math
math.sqrt(x)
...
How to sort an array of associative arrays by value of a given key in PHP?
... you're looking for is array_multisort().
Here's an example taken straight from the manual and adapted to your case:
$price = array();
foreach ($inventory as $key => $row)
{
$price[$key] = $row['price'];
}
array_multisort($price, SORT_DESC, $inventory);
As of PHP 5.5.0 you can use array_colu...
What is included in JCenter repository in Gradle?
From Gradle 1.7 there is new Public repository JCenter.
4 Answers
4
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