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How do I get PyLint to recognize numpy members?

... I had the same issue here, even with the latest versions of all related packages (astroid 1.3.2, logilab_common 0.63.2, pylon 1.4.0). The following solution worked like a charm: I added numpy to the list of ignored modules by modifying my pylintrc file, in the [TYPECHECK] section: [...
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How to check if a variable is set in Bash?

... (Usually) The right way if [ -z ${var+x} ]; then echo "var is unset"; else echo "var is set to '$var'"; fi where ${var+x} is a parameter expansion which evaluates to nothing if var is unset, and substitutes the string x otherw...
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How do you round a float to two decimal places in jruby

...ing for that is discussed here, it's mostly about readability. Not that we all have to follow the style guide, just giving some reasons :) – Lucy Bain Sep 4 '14 at 1:10 ...
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How do I write output in same place on the console?

... I also had to add a call to sys.stdout.flush() so the cursor didn't bounce around – scottm Feb 5 '09 at 19:40 20 ...
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How do I recursively delete a directory and its entire contents (files + sub dirs) in PHP?

... This calls is_dir twice for each recursed directory. If the argument is a symlink, it also follows it instead of deleting the symlink, which might or might not be what you want. In any case, it's not what rm -rf does. ...
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How to define hash tables in Bash?

...ecuting your script directly, or execute script with bash script. (Not actually executing a Bash script with Bash does happen, and will be really confusing!) You declare an associative array by doing: declare -A animals You can fill it up with elements using the normal array assignment operator....
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os.walk without digging into directories below

... Does this function actually "walk" through the whole structure and then delete the entries below a certain point? Or is something more clever going on? I'm not even sure how to check this with code. --python beginner – mathtic...
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When to use nested classes and classes nested in modules?

... As for your second observation, classes nested inside of modules are generally used to namespace the classes. For instance: module ActiveRecord class Base end end differs from module ActionMailer class Base end end Although this is not the only use of classes nested inside of modules,...
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What's the recommended approach to resetting migration history using Django South?

...inted out by @thnee below. Since your answer has so many upvotes I'd really appreciate it if you could edit it and add at least a warning about this, or (even better) change it to reflect @hobs approach (which is just as convenient, but doesn't affect other apps) - thanks! – chris...
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Performance of FOR vs FOREACH in PHP

First of all, I understand in 90% of applications the performance difference is completely irrelevant, but I just need to know which is the faster construct. That and... ...