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Lambda function in list comprehensions
...reates 10 different lambda functions. It puts all of those in a list. To make it equivalent to the first you need:
[(lambda x: x*x)(x) for x in range(10)]
Or better yet:
[x*x for x in range(10)]
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Ruby send vs __send__
...nd but I'm trying to figure out why you can call this both ways. The Ruby Koans imply that there is some reason beyond providing lots of different ways to do the same thing. Here are the two examples of usage:
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Better way to cast object to int
This is probably trivial, but I can't think of a better way to do it. I have a COM object that returns a variant which becomes an object in C#. The only way I can get this into an int is
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Display open transactions in MySQL
...ommit or cancel them?
There is no open transaction, MySQL will rollback the transaction upon disconnect.
You cannot commit the transaction (IFAIK).
You display threads using
SHOW FULL PROCESSLIST
See: http://dev.mysql.com/doc/refman/5.1/en/thread-information.html
It will not help you...
List of remotes for a Git repository?
... a Git repository. This repository has multiple remote repositories (I think). How can I get a list of the remote repositories that belong to said repository?
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How to create a database from shell command?
I'm looking for something like createdb in PostgreSQL or any other solution that would allow me to create database with a help of a shell command. Any hints?
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Draw multi-line text to Canvas
A hopefully quick question, but I can't seem to find any examples... I'd like to write multi-line text to a custom View via a Canvas , and in onDraw() I have:
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Nested defaultdict of defaultdict
Is there a way to make a defaultdict also be the default for the defaultdict? (i.e. infinite-level recursive defaultdict?)
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Accessing localhost:port from Android emulator
... from the emulator's Extended controls screen. With the emulator open, click More , and then click Settings and Proxy. From here, you can define your own HTTP proxy settings.
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What is a method group in C#?
... error such as "cannot convert from 'method group' to 'string'" in cases like:
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