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add a string prefix to each value in a string column using Pandas

... "astype(str)" might ruin the encoding if you are trying to save to a file in the end. – Raein Hashemi May 24 '19 at 16:10 2 ...
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Understanding spring @Configuration class

... That's what @Profile annotation, and the "${env.value}" syntax, are for. With @Profile("someName") you can tag an entire configuration for use only when the profile is active. In your application.properties (or .yml) file, then you may set s...
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How do I tell git-svn about a remote branch created after I fetched the repo?

... the new tree but remotes/newbranch will still be disconnected. Go to the file .git/refs/remotes/newbranch and edit it to contain the full SHA1 of the new commit (on the rebased newbranch) that corresponds to the old commit it's currently pointing at. (Or maybe use git-update-ref refs/remotes/newbr...
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What's the recommended approach to resetting migration history using Django South?

...>", "0001_initial")) to your <app-dir>/migrations/0001_initial.py file, as the first attribute in your migration class just below class Migration(SchemaMigration):. You can then ./manage.py migrate <app-name> --fake --delete-ghost-migrations on other environments, per this SO answer....
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Is a Python dictionary an example of a hash table?

...['some', 'list'] >>> hash(b) Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: list objects are unhashable >>> a[b] = 'some' Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: list objects ar...
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How to commit no change and new message?

...n I make a new commit and create a new message if no changes are made to files? 5 Answers ...
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django urls without a trailing slash do not redirect

...cations located on two separate computers. On computer A, in the urls.py file I have a line like the following: 6 Answer...
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Push to GitHub without a password using ssh-key

... ssh-keygen -t rsa -b 4096 -C "your_email@example.com" step 2. Enter a file in which to save the key (/Users/you/.ssh/id_rsa): <here is file name and enter the key> step 3. Enter passphrase (empty for no passphrase): [Type a password] Enter same passphrase again: [Type password again] ...
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Handling Touch Event in UILabel and hooking it up to an IBAction

...sponder. All UIresponder objects can handle touch events. So in your class file which knows about your view (which contains the UIlabel) implement: -(void)touchesBegan:(NSSet*)touches withEvent:(UIEvent*)event; In interface builder set the UILabel's tag value. when touches occur in your touchesB...
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Drawing an image from a data URL to a canvas

... Perhaps this fiddle would help ThumbGen - jsFiddle It uses File API and Canvas to dynamically generate thumbnails of images. (function (doc) { var oError = null; var oFileIn = doc.getElementById('fileIn'); var oFileReader = new FileReader(); var oImage = new Image();...