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How to express a One-To-Many relationship in Django
... the problem above? I'm probably just missing it completely, but I've been reading the Django documentation for some time now and am still unclear as to how to create this kind of relationship.
– Naftuli Kay
Aug 3 '11 at 15:44
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what is faster: in_array or isset? [closed]
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@David Harkness, you've already nit-picked my answer. If you want more, stand on my shoulders and post your own answer. :) Nonetheless, if the function overhead is already significantly more expensive relative to isset(), what makes you think passing ...
How do I convert a pandas Series or index to a Numpy array? [duplicate]
...2]: array(['a', 'b', 'c'], dtype=object)
This accesses how the data is already stored, so there's no need for a conversion.
Note: This attribute is also available for many other pandas' objects.
In [3]: df['A'].values
Out[3]: Out[16]: array([1, 2, 3])
To get the index as a list, call tolist:
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Should one use < or
...th of those loops iterate 7 times. I'd say the one with a 7 in it is more readable/clearer, unless you have a really good reason for the other.
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How to view the assembly behind the code using Visual C++?
I was reading another question pertaining the efficiency of two lines of code, and the OP said that he looked at the assembly behind the code and both lines were identical in assembly. Digression aside, how could I view the assembly code created when a program is compiled.
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Meaning of “[: too many arguments” error from if [] (square brackets)
...nds contain both of two words):
find /usr/share/doc -name '*.txt' | while read file; do \
a1=$(grep -H "description" $file); \
a2=$(grep -H "changes" $file); \
[ ! -z "$a1" -a ! -z "$a2" ] && echo -e "$a1 \n $a2" ; \
done
Edit 12 Aug 2013: related problem note:
Note that when c...
Standardize data columns in R
...a lot when a chain is very long since f(g(h(i(j(x))))) can be very hard to read.
– akhmed
Jun 24 '15 at 18:32
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ERROR 1396 (HY000): Operation CREATE USER failed for 'jack'@'localhost'
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This bug has been sitting on bugs.mysql.com since 2007 and this thread is mainly just a parroting of all those wrong answers even up to a year ago.
According to the MySQL documentation, commands like CREATE USER, GRANT, REVOKE, and DROP USER do not require a subsequent FLUSH PRIVILEGES com...
How to find the largest file in a directory and its subdirectories?
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for the first one, how do you get the size in a human readable format?
– Bluz
Oct 18 '16 at 15:54
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How to serve static files in Flask
...ut I could not get those to work. In the meantime, I am opening the files, reading content, and rigging up a Response with appropriate mimetype:
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