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Releasing memory in Python
...b worth of pages when you did those one or more free calls (for probably a bit more than 50.5mb)? You'd have to read your platform's malloc, and then walk the various tables and lists to see its current state. (On some platforms, it may even make use of system-level information, which is pretty much...
Why are C# interface methods not declared abstract or virtual?
...class as virtual, you'll see the final attribute getting removed. Now allowing a derived class to override it.
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Is there a null-coalescing (Elvis) operator or safe navigation operator in javascript?
...nk the following is equivalent to the safe navigation operator, although a bit longer:
var streetName = user && user.address && user.address.street;
streetName will then be either the value of user.address.street or undefined.
If you want it to default to something else you can c...
How to get JSON response from http.Get
...esponse onto a target structure.
var myClient = &http.Client{Timeout: 10 * time.Second}
func getJson(url string, target interface{}) error {
r, err := myClient.Get(url)
if err != nil {
return err
}
defer r.Body.Close()
return json.NewDecoder(r.Body).Decode(target)
...
Is there a limit to the length of a GET request? [duplicate]
...
HTTPbis adds a bit to this: "Various ad-hoc limitations on request-target length are found in practice. It is RECOMMENDED that all HTTP senders and recipients support request-target lengths of 8000 or more octets." tools.ietf.org/html/…
...
Can I have an IF block in DOS batch file?
...
Maybe a bit late, but hope it hellps:
@echo off
if %ERRORLEVEL% == 0 (
msg * 1st line WORKS FINE rem You can relpace msg * with any othe operation...
goto Continue1
)
:Continue1
If exist "C:\Python31" (
msg * 2nd line WORKS FINE r...
How do multiple clients connect simultaneously to one port, say 80, on a server? [duplicate]
...t must be needing the client to connect again to the new port assigned.
A bit more for completeness:
Example 2: It's a very interesting question: "can two different processes on a server listen to the same port". If you do not consider protocol as one of parameter defining socket then the answer i...
CSS filter: make color image with transparency white
...th: 50%;
text-align: center;
}
img {
display: block;
max-width: 100%;
}
.filter {
-webkit-filter: brightness(0) invert(1);
filter: brightness(0) invert(1);
}
<p>
Original:
<img src="http://i.stack.imgur.com/jO8jP.gif" />
</p>
<p>
Filter:
<...
What is the purpose of XORing a register with itself? [duplicate]
...gister to zero, the compiler will often do it the fastest way it knows. A bit operation like XOR might take only one CPU cycle, whereas a copy (from one register to another) can take a small handful.
Often compiler writers will even have different behaviors given different target CPU architectures...
Unable to import a module that is definitely installed
...alled, installed it, and my script ran.
My environment is Ubuntu 14.04 32-bit; I think I saw this before and after I activated my virtualenv.
UPDATE: even better, use python -m pip install <package>. The benefit of this is, since you are executing the specific version of python that you wan...