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Is it a good practice to use try-except-else in Python?
...o, the use of exceptions in Python does not slow the surrounding code and calling code as it does in some compiled languages (i.e. CPython already implements code for exception checking at every step, regardless of whether you actually use exceptions or not).
In other words, your understanding that...
What is a ViewModelLocator and what are its pros/cons compared to DataTemplates?
...ing them from a dependency injection (DI) container. This happens automatically when the container is asked to provide (resolve) an instance of the View class. The container injects the ViewModel into the View by calling a constructor of the View which accepts a ViewModel parameter; this scheme is c...
How can I profile C++ code running on Linux?
... one of the suggested ones.
However, if you're in a hurry and you can manually interrupt your program under the debugger while it's being subjectively slow, there's a simple way to find performance problems.
Just halt it several times, and each time look at the call stack. If there is some code th...
Representing graphs (data structure) in Python
...f._graph[node2].add(node1)
def remove(self, node):
""" Remove all references to node """
for n, cxns in self._graph.items(): # python3: items(); python2: iteritems()
try:
cxns.remove(node)
except KeyError:
pass
tr...
Change date of git tag (or GitHub Release based on it)
...d:
Go back in time to the commit representing the tag
Delete the tag (locally and remotely)
This will turn your "Release" on GitHub into a Draft that you can later delete.
Re-add the same-named tag using a magic invocation that sets its date to the date of the commit.
Push the new tags with fix...
Tying in to Django Admin's Model History
...ty Alchin's approach has been open sourced and extended in an application called django-simple-history.
– Trey Hunner
Sep 6 '11 at 17:41
5
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User Authentication in ASP.NET Web API
...tems provide an answers to the questions:
Who is the user?
Is the user really who he/she represents himself to be?
Authorization is the mechanism by which a system determines what level of access a particular authenticated user should have to secured resources controlled by the system. For exampl...
git stash blunder: git stash pop and ended up with merge conflicts
...emoved from the stash list. You need to resolve the conflicts by hand and call git stash drop manually afterwards.
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Why in Java 8 split sometimes removes empty strings at start of result array?
...
The behavior of String.split (which calls Pattern.split) changes between Java 7 and Java 8.
Documentation
Comparing between the documentation of Pattern.split in Java 7 and Java 8, we observe the following clause being added:
When there is a positive-width...
How can I make setuptools install a package that's not on PyPI?
...i.e. has setup.py, etc. Is there a way to make setuptools download and install the new version instead of looking for it on PyPI and installing the old one?
...