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How do I delete an exported environment variable?
Before installing gnuplot, I set the environment variable GNUPLOT_DRIVER_DIR = /home/gnuplot/build/src . During the installation, something went wrong.
...
Easily measure elapsed time
...
//***C++11 Style:***
#include <chrono>
std::chrono::steady_clock::time_point begin = std::chrono::steady_clock::now();
std::chrono::steady_clock::time_point end = std::chrono::steady_clock::now();
std::cout << "Time difference = " << std::chrono::duration_cast<std::c...
“open/close” SqlConnection or keep open?
...ion()) {} public SqlConnection GetConnection() { return new SqlConnection(_connectionString); }
– ganders
Jan 23 at 17:12
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Using PowerShell to write a file in UTF-8 without the BOM
...ry {
$Input | Out-String -Stream @htOutStringArgs | % { $sw.WriteLine($_) }
} finally {
$sw.Dispose()
}
}
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Is it possible to break a long line to multiple lines in Python [duplicate]
... line
appropriately.
Example of implicit line continuation:
a = some_function(
'1' + '2' + '3' - '4')
On the topic of line-breaks around a binary operator, it goes on to say:-
For decades the recommended style was to break after binary operators.
But this can hurt readability in t...
Android Facebook integration with invalid key hash
... "com.example.packagename",
PackageManager.GET_SIGNATURES);
for (Signature signature : info.signatures) {
MessageDigest md = MessageDigest.getInstance("SHA");
md.update(signature.toByteArray());
Log.d("KeyHash:", Base64.encodeToString(md.diges...
Using the “animated circle” in an ImageView while loading stuff
...:
<RelativeLayout
android:id="@+id/loadingPanel"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center" >
<ProgressBar
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:in...
Handling JSON Post Request in Go
...eq *http.Request) {
decoder := json.NewDecoder(req.Body)
var t test_struct
err := decoder.Decode(&t)
if err != nil {
panic(err)
}
log.Println(t.Test)
}
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When to use os.name, sys.platform, or platform.system?
...,release,version,machine = os.uname()
except AttributeError:
no_os_uname = 1
if no_os_uname or not filter(None, (system, node, release, version, machine)):
# Hmm, no there is either no uname or uname has returned
#'unknowns'... we'll have to poke around the system th...
How do I directly modify a Google Chrome Extension File? (.CRX)
...content developer.chrome.com/extensions/crx.html
– se_pavel
Mar 14 '13 at 15:22
5
After unzipping...