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Strings in a DataFrame, but dtype is object

Why does Pandas tell me that I have objects, although every item in the selected column is a string — even after explicit conversion. ...
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Batch File; List files in directory, only filenames?

This is probably a very simple question, but I'm having trouble with it. Basically, I am trying to write a Batch File and I need it to list all the files in a certain directory. The dir command will do this, but it also gives a bunch of other information; I want it to list ONLY the file names an...
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What is the difference between angular-route and angular-ui-router?

... ui-router is a 3rd-party module and is very powerful. It supports everything the normal ngRoute can do as well as many extra functions. Here are some common reason ui-router is chosen over ngRoute: ui-router allows for nested views and multiple named views. This is very usef...
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“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”

While executing an INSERT statement with many rows, I want to skip duplicate entries that would otherwise cause failure. After some research, my options appear to be the use of either: ...
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Padding between ActionBar's home icon and title

...anybody know how to set padding between the ActionBar's home icon and the title? 21 Answers ...
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Pickle incompatibility of numpy arrays between Python 2 and 3

... This seems like some sort of incompatibility. It's trying to load a "binstring" object, which is assumed to be ASCII, while in this case it is binary data. If this is a bug in the Python 3 unpickler, or a "misuse" of the pickler by numpy, I don't know. Here is som...
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NodeJS / Express: what is “app.use”?

... The app object is instantiated on creation of the Express server. It has a middleware stack that can be customized in app.configure()(this is now deprecated in version 4.x). To setup your middleware, you can invoke app.use(<specific_middleware_layer_here>) for every middleware layer...
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What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it?

What does ArrayIndexOutOfBoundsException mean and how do I get rid of it? 25 Answers ...
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You asked me to pull without telling me which branch you want to merge with

... It says bucket-4 pushes to bucket-4 just because the default when pushing a branch is to push it to one with a matching name on the remote. (Note that this is still the default, even if the local branch is tracking a remote-...
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In git, what is the difference between merge --squash and rebase?

I'm new to git and I'm trying to understand the difference between a squash and a rebase. As I understand it you perform a squash when doing a rebase. ...