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How do I write data into CSV format as string (not file)?
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I found the answers, all in all, a bit confusing. For Python 2, this usage worked for me:
import csv, io
def csv2string(data):
si = io.BytesIO()
cw = csv.writer(si)
cw.writerow(data)
return si.getvalue().strip('\r\n')
data=[1,2...
Setup RSpec to test a gem (not Rails)
...my_gem ) to setup the structure for the new gem and edit the *.gemspec manually.
I also added s.add_development_dependency "rspec", ">= 2.0.0" to gemspec and did a bundle install .
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How do I remove a project configuration in Visual Studio 2008?
... wish Visual Studio offered a quicker way to remove a configuration across all projects. If you have a dozen projects or so in a solution it's a pain to go through each of them and manually delete the configuration.
– Stefano Ricciardi
Aug 23 '11 at 9:43
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How to pretty print nested dictionaries?
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This is cool, but doesn't print all dictionaries well. print json.dumps(myObject.__dict__, sort_keys=True, indent=4) #TypeError: <object at 0x0000000002E6A748> is not JSON serializable
– tponthieux
Feb 8 '12 at 2...
JavaScript: Class.method vs. Class.prototype.method
... are extending the constructor function prototype, it will be available to all the object instances created with the new keyword, and the context within that function (the this keyword) will refer to the actual object instance where you call it.
Consider this example:
// constructor function
funct...
Mongoose query where value is not null
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answered May 13 '13 at 22:11
numbers1311407numbers1311407
30.8k88 gold badges8080 silver badges8787 bronze badges
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fork() branches more than expected?
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wallykwallyk
52.3k1111 gold badges7373 silver badges130130 bronze badges
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Copying text outside of Vim with set mouse=a enabled
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Community♦
111 silver badge
answered Jan 5 '11 at 19:31
FrançoisFrançois
7,11022 gold b...
How do I create an immutable Class?
I am working on creating an immutable class.
I have marked all the properties as read-only.
6 Answers
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What is the preferred syntax for initializing a dict: curly brace literals {} or the dict() function
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The first version is preferable:
It works for all kinds of keys, so you can, for example, say {1: 'one', 2: 'two'}. The second variant only works for (some) string keys. Using different kinds of syntax depending on the type of the keys would be an unnecessary inconsisten...