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How to test if a double is an integer
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I really love the simplicity of this solution. It's both easy to read and to implement.
– krispy
Feb 27 '14 at 21:03
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Coalesce function for PHP?
...HP 7 introduced a real coalesce operator:
echo $_GET['doesNotExist'] ?? 'fallback'; // prints 'fallback'
If the value before the ?? does not exists or is null the value after the ?? is taken.
The improvement over the mentioned ?: operator is, that the ?? also handles undefined variables without...
How to stop Gradle task execution in Android Studio?
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you can call ./gradlew --stop in a Terminal and it will kill all gradle processes
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Get name of object or class
...(function(){}); new myclass prints myclass {}
– Hugh Allen
May 26 '14 at 4:09
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Test if a variable is a list or tuple
... excludes custom sequences, iterators, and other things that you might actually need. However, sometimes you need to behave differently if someone, for instance, passes a string. My preference there would be to explicitly check for str or unicode like so:
import types
isinstance(var, types.String...
How can I manually generate a .pyc file from a .py file
...n not depend on Python's "import" statement to generate .pyc file automatically
8 Answers
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accepting HTTPS connections with self-signed certificates
...d to do is to set the level of verification.
Such levels is not so much:
ALLOW_ALL_HOSTNAME_VERIFIER
BROWSER_COMPATIBLE_HOSTNAME_VERIFIER
STRICT_HOSTNAME_VERIFIER
Although the method setHostnameVerifier() is obsolete for new library apache, but for version in Android SDK is normal.
And so we tak...
Print multiple arguments in Python
...or", name, "is", score)
If you don't want spaces to be inserted automatically by print in the above example, change the sep parameter:
print("Total score for ", name, " is ", score, sep='')
If you're using Python 2, won't be able to use the last two because print isn't a function in Python 2. Y...
Error: free(): invalid next size (fast):
... you have a memory error. You may be trying to free a pointer that wasn't allocated by malloc (or delete an object that wasn't created by new) or you may be trying to free/delete such an object more than once. You may be overflowing a buffer or otherwise writing to memory to which you shouldn't be...
How to manage local vs production settings in Django?
...velopment and production. And every developer has a different code base.I call anti-pattern here.
– pydanny
Jan 31 '13 at 16:25
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