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How can I open multiple files using “with open” in Python?
I want to change a couple of files at one time, iff I can write to all of them. I'm wondering if I somehow can combine the multiple open calls with the with statement:
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How to Configure SSL for Amazon S3 bucket
... and CloudFront together with your own SSL certificate (or generate a free one via Amazon Certificate Manager): http://aws.amazon.com/cloudfront/custom-ssl-domains/
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How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
...es
z.update(y) # modifies z with y's keys and values & returns None
return z
and now:
z = merge_two_dicts(x, y)
In Python 3.9.0a4 or greater (final release date approx October 2020): PEP-584, discussed here, was implemented to further simplify this:
z = x | y # NOTE: 3.9+ ...
Difference Between ViewData and TempData?
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In one sentence: TempData are like ViewData with one difference: They only contain data between two successive requests, after that they are destroyed. You can use TempData to pass error messages or something similar.
Although ...
Laravel redirect back to original destination after login
...direct the user back to the intended page
// or defaultpage if there isn't one
if (Auth::attempt(['email' => $email, 'password' => $password])) {
return redirect()->intended('defaultpage');
}
For Laravel 4 (old answer)
At the time of this answer there was no official support from the...
What is a columnar database?
...her a particular architecture/implementation. In other words, there isn't one particular description on how these databases work; indeed, several are build upon traditional, row-oriented, DBMS, simply storing the info in tables with one (or rather often two) columns (and adding the necessary layer ...
Why do python lists have pop() but not push()
Does anyone know why Python's list.append function is not called list.push given that there's already a list.pop that removes and returns the last element (that indexed at -1) and list.append semantic is consistent with that use?
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How to drop columns by name in a data frame
...d this option to avoid the conversion to an atomic vector if there is only one column left
Second, quicker to write, you can directly assign NULL to the columns you want to remove:
data[c("iden", "name", "x_serv", "m_serv")] <- list(NULL) # You need list() to respect the target structure.
Fi...
Determine the number of lines within a text file
...ore efficient was regarding memory usage, not necessarily speed. The first one loads the entire contents of the file into an array which means it must allocate at least as much memory as the size of the file. The second merely loops one line at a time so it never has to allocate more than one line's...
How do I have an enum bound combobox with custom string formatting for enum values?
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Nice one. Better overal, but might be overkill for your run-of-the-mill never-will-be-globalized-in-any-way piece of software. (I know, that assumption will turn out to be false later. ;-))
– peSHIr
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