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How can I find and run the keytool
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Thanks @SHAHM: great for us folks that don't want to explicitly download Java AGAIN and be bugged every week to upgrade to latest version.
– Pete Alvin
Oct 27 '19 at 14:54
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Convert SVG image to PNG with PHP
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That's funny you asked this, I just did this recently for my work's site and I was thinking I should write a tutorial... Here is how to do it with PHP/Imagick, which uses ImageMagick:
$usmap = '/path/to/blank/us-map.svg';
$im = new Imagick();
$svg = file_get_contents($usmap);
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Can I run multiple programs in a Docker container?
...application and mongo database. Normally I would install both in a VM and, forward a host port to the guest web app. I'd like to give Docker a try but I'm not sure how I'm meant to use more than one program. The documentations says there can only be only ENTRYPOINT so how can I have Mongo and my fla...
How to get disk capacity and free space of remote computer
...t Win32_LogicalDisk -ComputerName remotecomputer -Filter "DeviceID='C:'" |
Foreach-Object {$_.Size,$_.FreeSpace}
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How can I visualize per-character differences in a unified diff file?
Say I get a patch created with git format-patch . The file is basically a unified diff with some metadata. If I open the file in Vim, I can see which lines have been modified, but I cannot see which characters in the changed lines differ. Does anyone know a way (in Vim, or some other free softwar...
Django: ImproperlyConfigured: The SECRET_KEY setting must not be empty
...me (settings/local.py) inside my settings folder, which holds the settings for my local environment.
Another way to resolve this issue is to keep all your common settings inside settings/base.py and then create 3 separate settings files for your production, staging and dev environments.
Your setti...
Build the full path filename in Python
... do I build the file path from a directory name, base filename, and a file format string?
4 Answers
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Manually raising (throwing) an exception in Python
... Exception('I know Python!') # Don't! If you catch, likely to hide bugs.
For example:
def demo_bad_catch():
try:
raise ValueError('Represents a hidden bug, do not catch this')
raise Exception('This is the exception you expect to handle')
except Exception as error:
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What's the deal with a leading underscore in PHP class methods?
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I place an underscore before methods in my controllers that are private to the class, and unused in routing. Because I work with my own framework, this adds security as I enforce the policy of no leading underscore on controller names within routes...
UTF-8 byte[] to String
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Look at the constructor for String
String str = new String(bytes, StandardCharsets.UTF_8);
And if you're feeling lazy, you can use the Apache Commons IO library to convert the InputStream to a String directly:
String str = IOUtils.toString(input...