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How to initialize a dict with keys from a list and empty value in Python?
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dict.fromkeys([1, 2, 3, 4])
This is actually a classmethod, so it works for dict-subclasses (like collections.defaultdict) as well. The optional second argument specifies the value to use for the keys (defaults to None.)
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Get first n characters of a string
...ngths on trimmed and untrimmed strings):
$string = (strlen($string) > 13) ? substr($string,0,10).'...' : $string;
So you will get a string of max 13 characters; either 13 (or less) normal characters or 10 characters followed by '...'
Update 2:
Or as function:
function truncate($string, $len...
setting multiple column using one update
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344
Just add parameters, split by comma:
UPDATE tablename SET column1 = "value1", column2 = "val...
How to reliably open a file in the same directory as a Python script
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203
I always use:
__location__ = os.path.realpath(
os.path.join(os.getcwd(), os.path.dirname(__f...
Difference between CPPFLAGS and CXXFLAGS in GNU Make
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edited Apr 12 '12 at 3:39
Ergwun
11.1k66 gold badges4747 silver badges7575 bronze badges
answered J...
How can I convert a PFX certificate file for use with Apache on a linux server?
...pdate your Apache configuration file with:
<VirtualHost 192.168.0.1:443>
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SSLEngine on
SSLCertificateFile /path/to/domain.cer
SSLCertificateKeyFile /path/to/domain.key
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</VirtualHost>
share
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LINQ query to return a Dictionary
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370
Use the ToDictionary method directly.
var result =
// as Jon Skeet pointed out, OrderBy is...
CharSequence VS String in Java?
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344
Strings are CharSequences, so you can just use Strings and not worry. Android is merely trying...
Remove leading or trailing spaces in an entire column of data
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133
If you would like to use a formula, the TRIM function will do exactly what you're looking for:
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How does “304 Not Modified” work exactly?
...he If-Modified-Since or If-None-Match header, telling the server to send a 304 if the content still has that date or ETag.
The server needs some way of calculating a date-modified or ETag for each version of each resource; this typically comes from the filesystem or a separate database column.
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