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Deep copy of a dict in python
... @BuvinJ The issue is that json.loads doesn't solve the problem for all use cases where python dict attributes are not JSON serializable. It may help those who are only dealing with simple data structures, from an API for example, but I don't think it's enough of a solution to fully answer th...
Sanitizing strings to make them URL and filename safe?
...For example, when someone uploads a file I want to make sure that I remove all dangerous characters from the name.
23 Answe...
Where IN clause in LINQ [duplicate]
... source, params T[] list)
{
return list.Contains(source);
}
Now you call:
var states = _objdatasources.StateList().Where(s => s.In(countrycodes));
You can pass individual values too:
var states = tooManyStates.Where(s => s.In("x", "y", "z"));
Feels more natural and closer to sql.
...
Rails: Using build with a has_one association in rails
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Iterate a list as pair (current, next) in Python
...(b, None)
return itertools.izip(a, b)
How this works:
First, two parallel iterators, a and b are created (the tee() call), both pointing to the first element of the original iterable. The second iterator, b is moved 1 step forward (the next(b, None)) call). At this point a points to s0 and b...
Maven build failed: “Unable to locate the Javac Compiler in: jre or jdk issue”
...s:
Add and set the JRE in menu Window → Preferences... → Java → Installed JREs:
JRE type: Standard VM JRE
Name: jdk1.6.0_18
JRE home directory: C:\Program Files (x86)\Java\jdk1.6.0_18
If this is not the case, it's possible that the brackets and spaces in the JAVA_HOME path are causing issu...
Do htmlspecialchars and mysql_real_escape_string keep my PHP code safe from injection?
... is effectively just a string escaping function. It is not a magic bullet. All it will do is escape dangerous characters in order that they can be safe to use in a single query string. However, if you do not sanitise your inputs beforehand, then you will be vulnerable to certain attack vectors.
Ima...
Core dumped, but core file is not in the current directory?
...fied 14.04), there's an easy temporary workaround for this by running sudo service apport stop --- after I ran that, it changed /proc/sys/kernel/core_pattern from the apport pipe to just core. Apport is smart enough to fix up the core_pattern temporarily, I suppose.
– Patrick C...
How to reset db in Django? I get a command 'reset' not found error
...
It looks like the 'flush' answer will work for some, but not all cases. I needed not just to flush the values in the database, but to recreate the tables properly. I'm not using migrations yet (early days) so I really needed to drop all the tables.
Two ways I've found to drop all ...
Cosine Similarity between 2 Number Lists
... scientific routines for example, "routines for computing integrals numerically, solving differential equations, optimization, and sparse matrices." It uses the superfast optimized NumPy for its number crunching. See here for installing.
Note that spatial.distance.cosine computes the distance, and ...