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In practice, what are the main uses for the new “yield from” syntax in Python 3.3?

I'm having a hard time wrapping my brain around PEP 380 . 8 Answers 8 ...
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git: How to ignore all present untracked files?

Is there a handy way to ignore all untracked files and folders in a git repository? (I know about the .gitignore .) 8 An...
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How random is JavaScript's Math.random?

For 6 years I've had a random number generator page on my website. For a long time, it was the first or second result on Google for "random number generator" and has been used to decide dozens, if not hundreds of contests and drawings on discussion forums and blogs (I know because I see the referr...
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Copy files without overwrite

I just can't seem to find a way on the command line to say "copy all the files from directory A to directory B, but if the file already exists in directory B, don't overwrite it, no matter which file is newer, and don't prompt me." ...
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How to get line count of a large file cheaply in Python?

I need to get a line count of a large file (hundreds of thousands of lines) in python. What is the most efficient way both memory- and time-wise? ...
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Extract a part of the filepath (a directory) in Python

I need to extract the name of the parent directory of a certain path. This is what it looks like: 7 Answers ...
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How to export/import PuTTy sessions list?

Is there a way to do this? 15 Answers 15 ...
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Groovy Shell warning “Could not open/create prefs root node …”

I tried to open the Groovy Shell ( groovysh ) on Windows 8 and got the following output: 9 Answers ...
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Export CSS changes from inspector (webkit, firebug, etc)

When I'm working with CSS, I'll often test in a browser - say, Chrome - right click an element, click Inspect Element, and edit the CSS right there. The use of arrow keys to change things like margin and padding makes lining things up super easy. ...
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How to convert a Django QuerySet to a list

I have the following: 9 Answers 9 ...