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Django: accessing session variables from within a template?
If I set a session variable in Django, like:
9 Answers
9
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dynamic_cast and static_cast in C++
...t runtime, and work by querying the object (no need to worry about how for now), asking it if it the type we're looking for. If it is, dynamic_cast<Type*> returns a pointer; otherwise it returns NULL.
In order for this base-to-derived casting to work using dynamic_cast<>, Base, Foo and...
A variable modified inside a while loop is not remembered
...or the original Bourne shell, but don't have access to a running copy just now to check.
There is, however, a very trivial workaround to the problem.
Change the first line of the script from:
#!/bin/bash
to
#!/bin/ksh
Et voila! A read at the end of a pipeline works just fine, assuming you ha...
Pandas count(distinct) equivalent
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What if I have multiple columns that I want to be unique together, like in .drop_duplicates(subset=['col1','col2'])?
– ErnestScribbler
Oct 2 '17 at 8:10
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How to delete a row by reference in data.table?
...ated to assignment by reference versus copying in data.table . I want to know if one can delete rows by reference, similar to
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Create directory if it does not exist
I am writing a PowerShell script to create several directories if they do not exist.
11 Answers
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What does the filter parameter to createScaledBitmap do?
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Also, do you know if it's doing area averaging if you pass filter = true?
– clahey
Nov 5 '10 at 15:36
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Matrix Transpose in Python
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if you're going to iterate through the results, izip from itertools can save memory for large arrays.
– Antony Hatchkins
Mar 28 '13 at 8:38
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Passing a list of kwargs?
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ah, I wasn't paying attention. Should be better now.
– David Z
Sep 30 '09 at 20:26
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git submodule tracking latest
...it submodule update --remote
If you had a submodule already present you now wish would track a branch, see "how to make an existing submodule track a branch".
Also see Vogella's tutorial on submodules for general information on submodules.
Note:
git submodule add -b . [URL to Git repo];
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