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How do I check whether a file exists without exceptions?
...open_it(), it's safer to use a try around the attempt to open it. Checking and then opening risks the file being deleted or moved or something between when you check and when you try to open it.
If you're not planning to open the file immediately, you can use os.path.isfile
Return True if path ...
How to specify HTTP error code?
...swered Apr 30 '14 at 17:19
Dan MandleDan Mandle
4,30022 gold badges2020 silver badges2424 bronze badges
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C# equivalent of the IsNull() function in SQL Server
...QL Server you can use the IsNull() function to check if a value is null, and if it is, return another value. Now I am wondering if there is anything similar in C#.
...
How to run a single test from a rails test suite?
...kefile will NOT get executed.
To run a single test, use the following command from your rails project's main directory:
ruby -I test test/unit/my_model_test.rb -n test_name
This runs a single test named "name", defined in the MyModelTest class in the specified file. The test_name is formed by t...
How can I remove time from date with Moment.js?
...the party. Like 6 years late but this was something I needed to figure out and have it formatted YYYY-MM-DD.
moment().format(moment.HTML5_FMT.DATE); // 2019-11-08
You can also pass in a parameter like, 2019-11-08T17:44:56.144.
moment("2019-11-08T17:44:56.144").format(moment.HTML5_FMT.DATE); // 2...
Reset keys of array elements in php?
...es($ret); is enough to reset numeric keys
– Marek Lewandowski
May 7 '13 at 8:24
2
I dont know if ...
How do I get the first n characters of a string without checking the size or going out of bounds?
...If the reader hasn't seen this trick, he/she has to think harder to understand the code. IMO, the code's meaning is more obvious in the if / else version. For a cleaner / more readable solution, see @paxdiablo's answer.
sh...
How to get JSON from webpage into Python script
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Get data from the URL and then call json.loads e.g.
Python3 example:
import urllib.request, json
with urllib.request.urlopen("http://maps.googleapis.com/maps/api/geocode/json?address=google") as url:
data = json.loads(url.read().decode())
...
Remove items from one list in another
...ist in another" is certainly not equivalent to a set difference operation, and you should not misinform people by accepting this as the right answer!!!!
– user1935724
May 26 '16 at 3:58
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How to inflate one view with a layout
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I get an error: 02-25 22:21:19.324: ERROR/AndroidRuntime(865): Caused by: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
– Michal Dymel
Feb 25 '...