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How to use a decimal range() step value?

... Rather than using a decimal step directly, it's much safer to express this in terms of how many points you want. Otherwise, floating-point rounding error is likely to give you a wrong result. You can use the linspace function from the NumPy library (which isn't part ...
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html select option separator

...ion> </optgroup> </select> disabled option (a bit better): <select> <option>First</option> <option disabled>_________</option> <option>Second</option> <option>Third</option> </select> ...
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Android emulator doesn't take keyboard input - SDK tools rev 20

...gh the developer documentation says keyboard support is enabled by default it doesn't seem to be that way in SDK rev 20. I explicitly enabled keyboard support in my emulator's config.ini file and that worked! Add: hw.keyboard=yes To: ~/.android/avd/<emulator-device-name>.avd/config.ini Sim...
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When converting a project to use ARC what does “switch case is in protected scope” mean?

When converting a project to use ARC what does "switch case is in protected scope" mean? I am converting a project to use ARC, using Xcode 4 Edit -> Refactor -> Convert to Objective-C ARC... One of the errors I get is "switch case is in protected scope" on "some" of the switches in a switch case. ...
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How can I selectively escape percent (%) in Python strings?

... >>> test = "have it break." >>> selectiveEscape = "Print percent %% in sentence and not %s" % test >>> print selectiveEscape Print percent % in sentence and not have it break. ...
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Redis: possible to expire an element in an array or sorted set?

Is it currently only possible to expire an entire key/value pair? What if I want to add values to a List type structure and have them get auto removed 1 hour after insertion. Is that currently possible, or would it require running a cron job to do the purging manually? ...
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Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server

This should be dead simple, but I cannot get it to work for the life of me. I'm just trying to connect remotely to my MySQL server. ...
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Mockito : how to verify method was called on an object created within a method?

I am new to Mockito. 7 Answers 7 ...
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How to change the background color of the options menu?

I'm trying to change the default color for the options menu which is white: I want a black background for every item on the options menu. ...
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How to remove trailing whitespace of all files recursively?

How can you remove all of the trailing whitespace of an entire project? Starting at a root directory, and removing the trailing whitespace from all files in all folders. ...