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How can I write data in YAML format in a file?
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import yaml
data = dict(
A = 'a',
B = dict(
C = 'c',
D = 'd',
E = 'e',
)
)
with open('data.yml', 'w') as outfile:
yaml.dump(data, outfile, default_flow_style=False)
The default_flow_st...
Range references instead values
...aw that range returns the key and the "copy" of the value. Is there a way for that range to return the adress of the item? Example
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Easiest way to compare arrays in C#
...o easily compare the content of two basic arrays (overloads are available for all the basic types).
12 Answers
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How to add multiple objects to ManyToMany relationship at once in Django ?
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add(*[obj1, obj2, obj3])
Addendum:
Django does not call obj.save() for each item but uses bulk_create(), instead.
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How to check edittext's text is email address or not?
how to check the text of edittext is email address or not without using javascript and regular expression?
Here I used inputtype="textEmailAddress" this is working but no error message is display.
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Difference between CC, gcc and g++?
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The answer to this is platform-specific; what happens on Linux is different from what happens on Solaris, for example.
The easy part (because it is not platform-specific) is the separation of 'gcc' and 'g++':
gcc is the GNU C Compiler from the GCC (...
How do Python's any and all functions work?
...rying to understand how the any() and all() Python built-in functions work.
8 Answers
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Does Python have a package/module management system?
...hon packaging experience. Cumulatively, they make Python very unwelcoming for newbies. Also, the long history of neglect (ie. not shipping with a package manager for 14 years from Python 2.0 to Python 3.3) did damage to the community. I describe both below.
Outstanding frustrations
It's important ...
Why does the CheckBoxFor render an additional input tag, and how can I get the value using the FormC
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Have a look here:
http://forums.asp.net/t/1314753.aspx
This isn't a bug, and is in fact the same approach that both Ruby on
Rails and MonoRail use.
When you submit a form with a checkbox, the value is only posted if
the checkbox is checke...
Detect Retina Display
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In order to detect the Retina display reliably on all iOS devices, you need to check if the device is running iOS4+ and if the [UIScreen mainScreen].scale property is equal to 2.0. You CANNOT assume a device is running iOS4+ if...