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Extract only right most n letters from a string
...g, but you are sure of the words count (always 2 words in this case, like 'xxx yyyyyy') you'd better use split.
string Result = "PER 343573".Split(" ")[1];
this always returns the second word of your string.
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Convert a python dict to a string and back
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If in Chinses
import codecs
fout = codecs.open("xxx.json", "w", "utf-8")
dict_to_json = json.dumps({'text':"中文"},ensure_ascii=False,indent=2)
fout.write(dict_to_json + '\n')
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Android and setting alpha for (image) view alpha
...ng way.
ImageView myImageView = new ImageView(this);
myImageView.setAlpha(xxx);
In pre-API 11:
range is from 0 to 255 (inclusive), 0 being transparent and 255 being opaque.
In API 11+:
range is from 0f to 1f (inclusive), 0f being transparent and 1f being opaque.
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What HTTP status response code should I use if the request is missing a required parameter?
...You can send a 400 Bad Request code. It's one of the more general-purpose 4xx status codes, so you can use it to mean what you intend: the client is sending a request that's missing information/parameters that your application requires in order to process it correctly.
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ImportError: DLL load failed: %1 is not a valid Win32 application. But the DLL's are there
...Name of the wheel file with extension>
Wheel file will be like: piwin32-XXX-cpXX-none-win32.whl
It solvs the problem for me. You may also like to give it a try. Hope it work for you as well.
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Is an entity body allowed for an HTTP DELETE request?
...ection 9, and 9.4 specifically)
a message-body is explicitly forbidden in 1xx (informational), 204 (no content), and 304 (not modified) responses (section 4.3)
all other responses include a message-body, though it may be of zero length (section 4.3)
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Convert SVG image to PNG with PHP
...because I made sure each state's attributes were formatted exactly as (id="XX" style="fill:#XXXXXX").
– WebChemist
Oct 16 '12 at 0:08
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Unable to authenticate with Git Bash to Visual Studio Team Services
...e non-email username that you set up as basic username credentials for the XXX.visualstudio.com host.
You will then be prompted for the password when accessing that VSTS Git repository.
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Django in / not in query
... Depending on the context, if the filter is like "having count(xx)==yy" it's more than 100x faster to use annotate() (timeit gave me 1.0497902309998608 vs 0.00514069400014705)
– Olivier Pons
Apr 11 '19 at 8:18
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HTTPS and SSL3_GET_SERVER_CERTIFICATE:certificate verify failed, CA is OK
...m to curl.cainfo.
Since PHP 5.3.7 you could do:
download https://curl.haxx.se/ca/cacert.pem and save it somewhere.
update php.ini -- add curl.cainfo = "PATH_TO/cacert.pem"
Otherwise you will need to do the following for every cURL resource:
curl_setopt ($ch, CURLOPT_CAINFO, "PATH_TO/cacert.pem...