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Rename all files in directory from $filename_h to $filename_half?

... Just use bash, no need to call external commands. for file in *_h.png do mv "$file" "${file/_h.png/_half.png}" done Do not add #!/bin/sh For those that need that one-liner: for file in *.png; do mv "$file" "${file/_h.png/_half.png}"; done ...
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PowerShell Script to Find and Replace for all Files with a Specific Extension

... I would like to add that testing the solutions provided out all worked, but this one was the easiest for readability. I was able to hand this to a co-worker and he could easily understand what was going on. Thanks for the assistance. – Brandon Ma...
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Django filter queryset __in for *every* item in list

... Summary: One option is, as suggested by jpic and sgallen in the comments, to add .filter() for each category. Each additional filter adds more joins, which should not be a problem for small set of categories. There is the aggregation approach. This query would be shorter and...
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Evaluating a mathematical expression in a string

...p://pyparsing.wikispaces.com/message/view/home/15549426 ''' __note__ = ''' All I've done is rewrap Paul McGuire's fourFn.py as a class, so I can use it more easily in other places. ''' class NumericStringParser(object): ''' Most of this code comes from the fourFn.py pyparsing example ...
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What's the best UI for entering date of birth? [closed]

...ry fast. For a not so advanced user I suggest using a datepicker. Since usually you also have advanced and non-advanced users I suggest a combination of text input and datepicker. share | improve th...
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get current url in twig template?

...ttributes.get('_route_params')) %} The app global view variable contains all sorts of useful shortcuts, such as app.session and app.security.token.user, that reference the services you might use in a controller. share ...
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How to add a custom loglevel to Python's logging facility

...for my application, as I don't think that debug() is sufficient. Additionally log(5, msg) isn't what I want. How can I add a custom loglevel to a Python logger? ...
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What's the difference between a Python module and a Python package?

...stem in the reference documentation: It’s important to keep in mind that all packages are modules. – Martijn Pieters♦ Apr 23 '18 at 21:42 7 ...
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How does python numpy.where() work?

... How do they achieve internally that you are able to pass something like x > 5 into a method? The short answer is that they don't. Any sort of logical operation on a numpy array returns a boolean array. (i.e. __gt__, __lt__, etc all return boolea...
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“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP

... can be used to detect if a variable has been already initialized. Additionally and more ideal is the solution of empty() since it does not generate a warning or error message if the variable is not initialized. From PHP documentation: No warning is generated if the variable does not exist. T...