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What is the usefulness of `enable_shared_from_this`?
I ran across enable_shared_from_this while reading the Boost.Asio examples and after reading the documentation I am still lost for how this should correctly be used. Can someone please give me an example and explanation of when using this class makes sense.
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Definition of “downstream” and “upstream”
...f source control, you're "downstream" when you copy (clone, checkout, etc) from a repository. Information flowed "downstream" to you.
When you make changes, you usually want to send them back "upstream" so they make it into that repository so that everyone pulling from the same source is working wi...
How to configure XAMPP to send mail from localhost?
I am trying to send mail from localhost.
but i am unable to send the mail from localhost
so can anybody tell me that how to reconfigure my xampp to send mail from localhost
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Remove a file from a Git repository without deleting it from the local filesystem
...ve added *log to my .gitignore , and now I want to remove the log files from my repository.
10 Answers
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django unit tests without a db
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Here is what I did:
Create a custom test suit runner similar to this:
from django.test.simple import DjangoTestSuiteRunner
class NoDbTestRunner(DjangoTestSuiteRunner):
""" A test runner to test without database creation """
def setup_databases(self, **kwargs):
""" Override the databas...
How do you read from stdin?
... of the code golf challenges, but they all require the input to be taken from stdin . How do I get that in Python?
22 An...
StringIO in Python3
.... I use
io.StringIO and it works, but I can't use it with numpy 's genfromtxt like this:
8 Answers
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Python timedelta in years
... number of years have been since some date. Currently I've got timedelta from datetime module and I don't know how to convert it to years.
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Difference between java.lang.RuntimeException and java.lang.Exception
...ust be handled in the calling class or above).
Any exception that derives from "Exception" is a checked exception, whereas a class that derives from RuntimeException is un-checked. RuntimeExceptions do not need to be explicitly handled by the calling code.
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What does 'super' do in Python?
...t__. while
super(Child, self).__init__()
means to call a bound __init__ from the parent class that follows Child in the instance's Method Resolution Order (MRO).
If the instance is a subclass of Child, there may be a different parent that comes next in the MRO.
Explained simply
When you writ...