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Fastest way to get the first object from a queryset in django?
...ust do the above and it will only pull the first. You could even use .order_by() to ensure you get the first you want.
Be sure to add the .get() or else you will get a QuerySet back and not an object.
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How well is Unicode supported in C++11?
... what std::string and its siblings should do:
The class template basic_string describes objects that can store a sequence consisting of a varying number of arbitrary char-like objects with the first element of the sequence at position zero.
Well, std::string does that just fine. Does that pro...
Find the nth occurrence of substring in a string
... more Pythonic version of the straightforward iterative solution:
def find_nth(haystack, needle, n):
start = haystack.find(needle)
while start >= 0 and n > 1:
start = haystack.find(needle, start+len(needle))
n -= 1
return start
Example:
>>> find_nth("fo...
How to compile python script to binary executable
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cx_Freeze is better, it supports even python 3.3.
– Ashwini Chaudhary
Sep 9 '12 at 14:03
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How does having a dynamic variable affect performance?
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Split string in Lua?
...pattern_to_match)
e.g.:
list=split("1:2:3:4","\:")
For more go here:
http://lua-users.org/wiki/SplitJoin
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How to use PyCharm to debug Scrapy projects
... a virtualenv with Python 3.5.0 and setting the "script" parameter to /path_to_project_env/env/bin/scrapy solved the issue for me.
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Get the client's IP address in socket.io
...P address of an incoming connection? I know you can get it from a standard HTTP connection, but socket.io is a bit of a different beast.
...
What happens when there's insufficient memory to throw an OutOfMemoryError?
...
The JVM never really runs out of memory. It does memory computation of the heap stack in advance.
The Structure of the JVM, Chapter 3, section 3.5.2 states:
If Java virtual machine stacks can be dynamically expanded, and expansion is attempted but insufficient memory can b...
What is the difference between SIGSTOP and SIGTSTP?
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