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Using python's eval() vs. ast.literal_eval()?

...ow s = """ (lambda fc=( lambda n: [ c for c in ().__class__.__bases__[0].__subclasses__() if c.__name__ == n ][0] ): fc("function")( fc("code")( 0,0,0,0,"KABOOM",(),(),(),"","",0,"" ),{} )() )() """ eval(s, {'__builtins__':{}}) In the above code ().__class...
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How can I safely encode a string in Java to use as a filename?

...eason I tend to allow the user to enter what they want, store the filename based on a scheme of my own choosing (eg userId_fileId) and then store the user's filename in a database table. That way you can display it back to the user, store things how you want and you don't compromise security or wipe...
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Removing duplicate objects with Underscore for Javascript

... If you're looking to remove duplicates based on an id you could do something like this: var res = [ {id: 1, content: 'heeey'}, {id: 2, content: 'woah'}, {id: 1, content:'foo'}, {id: 1, content: 'heeey'}, ]; var uniques = _.map(_.groupBy(res,function(doc)...
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Why does Ruby 1.9.2 remove “.” from LOAD_PATH, and what's the alternative?

...them (they reported "no such file to load" for all require statements that based off the project path). Was there a particular justification for doing this? ...
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Python error “ImportError: No module named”

... Based on your comments to orip's post, I guess this is what happened: You edited __init__.py on windows. The windows editor added something non-printing, perhaps a carriage-return (end-of-line in Windows is CR/LF; in unix i...
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How to avoid having class data shared among instances?

... allows field assignment. class mymeta(type): def __init__(cls, name, bases, d): pass def __setattr__(cls, attr, value): print("setting " + attr) super(mymeta, cls).__setattr__(attr, value) class myclass(object): __metaclass__ = mymeta myattr = [] a = mycl...
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Python hashable dicts

...unter for examples from the Python standard library. The other comment is based on the unfounded belief that only subclasses of MutableMapping are well defined. – Raymond Hettinger Mar 16 '16 at 16:04 ...
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Why is document.body null in my javascript?

...his alert? Not before?"); } </script> </head> See demo. share | improve this answer | follow | ...
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How to uninstall the “Microsoft Advertising SDK” Visual Studio extension?

...ds. Edit: @Max actually posted a forked version of this. This one is file based setup with a command line interface. I use it to script the cleanup as post visual studio install. share | improve th...
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C default arguments

...pedef struct { int i; double x; } f_args; Rename your function f_base, and define a wrapper function that sets defaults and calls the base: double var_f(f_args in){ int i_out = in.i ? in.i : 8; double x_out = in.x ? in.x : 3.14; return f_base(i_out, x_out); } Now add a macro...