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Mac OS X - EnvironmentError: mysql_config not found

...k, well, first of all, let me check if I am on the same page as you: You installed python You did brew install mysql You did export PATH=$PATH:/usr/local/mysql/bin And finally, you did pip install MySQL-Python (or pip3 install mysqlclient if using python 3) If you did all those steps in the same...
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What's the difference between SortedList and SortedDictionary?

... SortedDictionary) for details of the performance for different operations in different situtations. Here's a nice summary (from the SortedDictionary docs): The SortedDictionary<TKey, TValue> generic class is a binary search tree with O(log n) retrieval, where n is the number of elem...
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How to get the parents of a Python class?

... Use the following attribute: cls.__bases__ From the docs: The tuple of base classes of a class object. Example: >>> str.__bases__ (<type 'basestring'>,) Another example: >>> class A(object): ... pas...
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Why would you use Expression rather than Func?

... When you want to treat lambda expressions as expression trees and look inside them instead of executing them. For example, LINQ to SQL gets the expression and converts it to the equivalent SQL statement and submits it to server (rather than executing the lambda). Conceptually, Expression<Fun...
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How do I do a HTTP GET in Java? [duplicate]

How do I do a HTTP GET in Java? 4 Answers 4 ...
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Regular Expression to get a string between parentheses in Javascript

I am trying to write a regular expression which returns a string which is between parentheses. For example: I want to get the string which resides between the strings "(" and ")" ...
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How to keep environment variables when using sudo

...d with sudo the environment variables are not there. For example after setting HTTP_PROXY the command wget works fine without sudo . However if I type sudo wget it says it can't bypass the proxy setting. ...
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Fat models and skinny controllers sounds like creating God models [closed]

I've been reading a lot of blogs which advocate the fat models and skinny controllers approach, esp. the Rails camp. As a result the routers is basically just figuring out what method to call on what controller and all the controller method does is call the corresponding method on the model and th...
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Converting a column within pandas dataframe from int to string

I have a dataframe in pandas with mixed int and str data columns. I want to concatenate first the columns within the dataframe. To do that I have to convert an int column to str . I've tried to do as follows: ...
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What is a raw type and why shouldn't we use it?

... What is a raw type? The Java Language Specification defines a raw type as follows: JLS 4.8 Raw Types A raw type is defined to be one of: The reference type that is formed by taking the name of a generic type declaration without an accompanying type argument list. An array type...