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Open multiple Eclipse workspaces on the Mac

How can I open multiple Eclipse workspaces at the same time on the Mac On other platforms I can just launch extra Eclipse instances but the Mac will not let me

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OSError Errno 1 Operation not permitted when installing Scrapy in OSX 1011 El Capitan System Integrity Protection

Im trying to install Scrapy Python framework in OSX 1011 El Capitan via pip The installation script downloads the required modules and at some point returns

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Property value does not exist on type Readonly

I need to create a form that will display something based on the return value of an API Im working with the following code class App extends ReactComponent

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Python Pandas merge only certain columns

Is it possible to only merge some columns I have a DataFrame df1 with columns x y z and df2 with columns x a b c d e f etc I want to merge the two DataFrames

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Python Why is functoolspartial necessary

Partial application is cool What functionality does functoolspartial offer that you cant get through lambdas gtgtgt sum lambda x y x y gtgtgt sum1 2 3 gtgtgt

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Read entire file in Scala

Whats a simple and canonical way to read an entire file into memory in Scala Ideally with control over character encoding The best I can come up with is

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Regex every non-alphanumeric character except white space or colon

How can I do this one anywhere Basically I am trying to match all kinds of miscellaneous characters such as ampersands semicolons dollar signs

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Remove items from one list in another

Im trying to figure out how to traverse a generic list of items that I want to remove from another list of items So lets say I have this as a hypothetical

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Select 50 items from list at random

I have a function which reads a list of items from a file How can I select only 50 items from the list randomly to write to another file def randomizerinput

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