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How do I find the time difference between two datetime objects in python?

How do I tell the time difference in minutes between two datetime objects? 15 Answers ...
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Aligning text and image on UIButton with imageEdgeInsets and titleEdgeInsets

I would like to place an icon left of the two lines of text such that there's about 2-3 pixels of space between the image and the start of text. The control itself is Center aligned horizontally (set through Interface Builder) ...
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Principal component analysis in Python

I'd like to use principal component analysis (PCA) for dimensionality reduction. Does numpy or scipy already have it, or do I have to roll my own using numpy.linalg.eigh ? ...
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Python Infinity - Any caveats?

So Python has positive and negative infinity: 5 Answers 5 ...
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What is the difference between CMD and ENTRYPOINT in a Dockerfile?

In Dockerfiles there are two commands that look similar to me: CMD and ENTRYPOINT . But I guess that there is a (subtle?) difference between them - otherwise it would not make any sense to have two commands for the very same thing. ...
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Convert column classes in data.table

I have a problem using data.table: How do I convert column classes? Here is a simple example: With data.frame I don't have a problem converting it, with data.table I just don't know how: ...
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Getting key with maximum value in dictionary?

I have a dictionary : keys are strings, values are integers. 25 Answers 25 ...
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Regular expression for a hexadecimal number?

How do I create a regular expression that detects hexadecimal numbers in a text? 11 Answers ...
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Common xlabel/ylabel for matplotlib subplots

I have the following plot: 7 Answers 7 ...
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Bin size in Matplotlib (Histogram)

I'm using matplotlib to make a histogram. 8 Answers 8 ...