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What's the difference between lists enclosed by square brackets and parentheses in Python?
...gt; x
(1, 2)
>>> x.append(3)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'tuple' object has no attribute 'append'
The other main difference is that a tuple is hashable, meaning that you can use it as a key to a dictionary, among oth...
Check if pull needed in Git
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How can I use this in a (Ubuntu) batch file, so that I can run other commands just in the case this command shows that a pull is needed?
– Ulysses Alves
Jun 8 '16 at 13:40
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PHP: How to handle
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The LIBXML_NOCDATA is optional third parameter of simplexml_load_file() function. This returns the XML object with all the CDATA data converted into strings.
$xml = simplexml_load_file($this->filename, 'SimpleXMLElement', LIBXML_NOCDATA);
echo "<pre>";
print_r($xml);
echo "</...
django: BooleanField, how to set the default value to true?
...s)
self.default = default
def value_from_datadict(self, data, files, name):
if name not in data:
return self.default
return super(CheckboxInput, self).value_from_datadict(data, files, name)
Then use this widget when creating BooleanField.
class ExampleForm...
Configuring IntelliJ IDEA for unit testing with JUnit
...p section" led me to putting the cursor on the unresolved @Test in my test file and now my life is complete!
– Bob
Jan 21 '11 at 11:19
2
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Package objects
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Normally you would put your package object in a separate file called package.scala in the package that it corresponds to. You can also use the nested package syntax but that is quite unusual.
The main use case for package objects is when you need definitions in various places insi...
Rails ActionMailer - format sender and recipient name/email address
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You can also put it directly in your mailer.rb file like this :from => "Company Name <no-reply@email.com>" if you don't have environment restrictions.
– Puce
May 29 '15 at 12:29
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Using Core Data, iCloud and CloudKit for syncing and backup and how it works together
...re I would like to save, sync and backup data. The app will not store any files just data in a database. It is going to be iOS 8 and up so I am able to use CloudKit. I did some research and still not clear on how Core Data, iCloud and CloudKit work together.
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PHP Fatal error: Call to undefined function json_decode()
...on
sudo nano /etc/php/7.1/mods-available/json.ini
Add json.so to the new file
Add the appropriate sym link under conf.d
Restart apache2 service (if needed)
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How do I exclude all instances of a transitive dependency when using Gradle?
My gradle project uses the application plugin to build a jar file. As part of the runtime transitive dependencies, I end up pulling in org.slf4j:slf4j-log4j12 . (It's referenced as a sub-transitive dependency in at least 5 or 6 other transitive dependencies - this project is using spring and hado...