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Get all related Django model objects
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objects = getattr(a, link).all()
for object in objects:
# do something with related object instance
I spent a while trying to figure this out so I could implement a kind of "Observer Pattern" on
one of my models. Hope it's helpful.
Django 1.8+
Use _meta.get_fields(): https://doc...
How do I remove a single file from the staging area (undo git add)?
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If I understand the question correctly, you simply want to "undo" the git add that was done for that file.
If you need to remove a single file from the staging area, use
git reset HEAD -- <file>
If you need to remove a whole directory (folder) from the staging area, use
git re...
Why do I need 'b' to encode a string with Base64?
...haracters A-Z, a-z, 0-9, +, /* so it can be transmitted over channels that do not preserve all 8-bits of data, such as email.
Hence, it wants a string of 8-bit bytes. You create those in Python 3 with the b'' syntax.
If you remove the b, it becomes a string. A string is a sequence of Unicode chara...
Capturing multiple line output into a Bash variable
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echo $RESULT
As noted in the comments, the difference is that (1) the double-quoted version of the variable (echo "$RESULT") preserves internal spacing of the value exactly as it is represented in the variable — newlines, tabs, multiple blanks and all — whereas (2) the unquoted version (ech...
How do I convert a dictionary to a JSON String in C#?
...want to convert my Dictionary<int,List<int>> to JSON string. Does anyone know how to achieve this in C#?
13 A...
Wait 5 seconds before executing next line
This function below doesn’t work like I want it to; being a JS novice I can’t figure out why.
14 Answers
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What exactly is Python's file.flush() doing?
I found this in the Python documentation for File Objects :
4 Answers
4
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Why is reading lines from stdin much slower in C++ than Python?
...y C++ is rusty and I'm not yet an expert Pythonista, please tell me if I'm doing something wrong or if I'm misunderstanding something.
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What is the best (idiomatic) way to check the type of a Python variable? [duplicate]
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Direct link to help page: docs.python.org/2.7/library/…
– Suraj
Jun 16 '15 at 8:03
5
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How to create a CPU spike with a bash command
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You can also do
dd if=/dev/zero of=/dev/null
To run more of those to put load on more cores, try to fork it:
fulload() { dd if=/dev/zero of=/dev/null | dd if=/dev/zero of=/dev/null | dd if=/dev/zero of=/dev/null | dd if=/dev/zero of=...