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What does the “-U” option stand for in pip install -U

Despite a ton of Googling, I can't find any docs for pip's command line options/arguments. What does pip install -U mean? Does anyone have a link to a list of pip's options and arguments? ...
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How to fetch all Git branches

I cloned a Git repository, which contains about five branches. However, when I do git branch I only see one of them: 31 A...
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Where should @Service annotation be kept? Interface or Implementation?

...ceI and ServiceImpl such that ServiceImpl implements ServiceI . I'm confused here as to where should I keep the @Service annotation. ...
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Apply .gitignore on an existing repository already tracking large number of files

...ting Visual Studio project in my repository. I recently added a .gitignore file under my project and I assume that tells Git to ignore the files listed in the file. ...
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ISO time (ISO 8601) in Python

I have a file. In Python, I would like to take its creation time, and convert it to an ISO time (ISO 8601) string while preserving the fact that it was created in the Eastern Time Zone (ET) . ...
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Tips for using Vim as a Java IDE? [closed]

I'm addicted to Vim, it's now my de facto way of editing text files. 7 Answers 7 ...
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rsync copy over only certain types of files using include option

I use the following bash script to copy only files of certain extension(in this case *.sh), however it still copies over all the files. what's wrong? ...
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Writing a git post-receive hook to deal with a specific branch

... and ignore pushes to other branches. Is it possible to select the branch from a bare repo and push only that branch to Assembla? ...
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Scatterplot with too many points

... there is too much overlap, so that the plot becomes mostly a solid block of black. Is there any way of having a grayscale "cloud" where the darkness of the plot is a function of the number of points in an region? In other words, instead of showing individual points, I want the plot to be a "cloud",...
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Stashing only staged changes in git - is it possible?

...ime, and have several unstaged changes. I'd like to be able to stage these files individually, create my .patch files, and stash them away until the code is approved. This way, when it's approved I can stash my entire (current) session, pop that bug and push the code. ...