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Is it necessary to explicitly remove event handlers in C#
...class that offers up a few events. That class is declared globally but not instanced upon that global declaration--it's instanced on an as-needed basis in the methods that need it.
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Unlink of file Failed. Should I try again?
Something wrong is going on with one of the files in my local git repository. When I'm trying to change the branch it says:
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How to get a specific version of a file in Mercurial?
I am new to Mercurial. Just cannot find the right command. Tried update/checkout with no luck. I am using local repository. Thanks
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How can I trim leading and trailing white space?
I am having some troubles with leading and trailing white space in a data.frame.
13 Answers
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How to “test” NoneType in python?
...pe?
Use is operator, like this
if variable is None:
Why this works?
Since None is the sole singleton object of NoneType in Python, we can use is operator to check if a variable has None in it or not.
Quoting from is docs,
The operators is and is not test for object identity: x is y is tru...
How to remove the first character of string in PHP?
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To remove every : from the beginning of a string, you can use ltrim:
$str = '::f:o:';
$str = ltrim($str, ':');
var_dump($str); //=> 'f:o:'
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How to override equals method in Java
I am trying to override equals method in Java. I have a class People which basically has 2 data fields name and age . Now I want to override equals method so that I can check between 2 People objects.
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In Python script, how do I set PYTHONPATH?
I know how to set it in my /etc/profile and in my environment variables.
6 Answers
6
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How to list imported modules?
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import sys
sys.modules.keys()
An approximation of getting all imports for the current module only would be to inspect globals() for modules:
import types
def imports():
for name, val in globals().items():
if isinstance(val, types.ModuleType):
yield val._...
How can I combine hashes in Perl?
What is the best way to combine both hashes into %hash1? I always know that %hash2 and %hash1 always have unique keys. I would also prefer a single line of code if possible.
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