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Python __setattr__ and __getattr__ for global scope?

- by KT

Suppose I need to create my own small DSL that would use Python to describe a certain data structure. E.g. I'd like to be able to write something like f(x) = some_stuff(a,b,c) and have Python, instead of complaining about undeclared identifiers or attempting to invoke the function some_stuff, convert it to a literal expression for my further…

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Python scope problems only when _assigning_ to a variable

- by wallacoloo

So I'm having a very strange error right now. I found where it happens, and here's the simplest code that can reproduce it. def parse_ops(str_in): c_type = "operator" def c_dat_check_type(t): print c_type #c_type = t c_dat_check_type("number") >>> parse_ops("12+a*2.5") If you run it as-is, it prints…

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Variable scope in javascript

- by Rich Bradshaw

This is a simple question, but I can't work it out. The specifics aren't important, but here's the gist. I have some code like this: var lat = 0; var lon = 0; if (navigator.geolocation) { navigator.geolocation.getCurrentPosition(function(position) { lat = position.coords.latitude; lon = position.coords.longitude; …

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Python function argument scope (Dictionaries v. Strings)

- by Shaun Meyer

Hello, given: foo = "foo" def bar(foo): foo = "bar" bar(foo) print foo # foo is still "foo"... foo = {'foo':"foo"} def bar(foo): foo['foo'] = "bar" bar(foo) print foo['foo'] # foo['foo'] is now "bar"? I have a function that has been inadvertently over-writing my function parameters when I pass a dictionary. Is there a clean…

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How does scope in Javascript work?

- by Jim

I can not understand how scoping works in Javascript. E.g. <html> <head> <script>var userName = "George"; </script> </head> <body> ...... <script> document.write('Name = ' + userName); </script> </body> </html> The…

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jquery ajax callback out of the function scope

- by vasion

function checkauth(){ jQuery.getJSON("/users/checkauthjson", null, function(xhr){ if(xhr.success){ return true;}else{ return false;} }); } Obviously, that does not work, but it illustrates what i want to achieve. I want checkauth to return a value which is checked against an ajax server script. How…

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Javascript: variable scope & the evils of globals

- by Nick

I'm trying to be good, I really am, but I can't see how to do it :) Any advice on how to not use a global here would be greatly appreciated. Let's call the global G. Function A Builds G by AJAX Function B Uses G Function C Calls B Called by numerous event handlers attached to DOM elements (type 1) Function D Calls B …

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XPath: limit scope of result set

- by Laramie

Given the XML <a> <c> <b id="1" value="noob"/> </c> <b id="2" value="tube"/> <a> <c> <b id="3" value="foo"/> </c> <b id="4" value="goo"/> <b id="5" value="noob"/> <a> <b…

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Setting precision on std::cout in entire file scope - C++ iomanip

- by Ivan

Hi all, I'm doing some calculations, and the results are being save in a file. I have to output very precise results, near the precision of the double variable, and I'm using the iomanip setprecision(int) for that. The problem is that I have to put the setprecision everywhere in the output, like that: func1() {…

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binding an object to the global scope

- by elduderino

I have the following code: var myVar = (function (window) { myobj = {}; myobj.boo = function() { alert('hi'); }; window.myVar = myobj; })(window); myVar.boo(); Why don't I get back the alert when I call myVar.boo() ? I've created an anonymous self-executing function and fed in…

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Vim, how to scroll to bottom of a named buffer

- by Gavin Black

I have a vim-script which splits output to a new window, using the following command: below split +view foo I've been trying to find a way from an arbitrary buffer to scroll to the bottom of foo, or a setting to keep it defaulted to showing the bottom lines of the buffer. I'm doing most of this inside of a…

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Variable scope and the 'using' statement in .NET

- by pete the pagan-gerbil

If a variable is at class level (ie, private MyDataAccessClass _dataAccess;, can it be used as part of a using statement within the methods of that class to dispose of it correctly? Is it wise to use this method, or is it better to always declare a new variable with a using statement (ie, using…

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Push a variable into global scope?

- by Spot

We use instantiate and put system critical objects in $GLOBALS for easy access from anywhere (e.g. DB, Cache, User, etc.). We use $GLOBALS so much that it would (yes, really) drop the amount of code quite a bit if I could reference it like $G = &$GLOBALS for a shorthand call. The problem…

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Problem about C++ class (inheritance, variables scope and functions)

- by Luigi Giaccari

I have a class that contains some data: class DATA Now I would to create some functions that uses those data. I can do it easily by writing member functions like DATA::usedata(); Since there are hundreds of functions, I would to keep an order in my code, so I would like to have some…

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XmlSerializer construction with same named extra types

- by NoizWaves

Hey, I am hitting trouble constructing an XmlSerializer where the extra types contains types with the same Name (but unique Fullname). Below is an example that illustrated my scenario. Type definitions in external assembly I cannot manipulate: public static class Wheel { public…

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trying to run a named query

- by dora

hi, I’m doing the following: @Entity @SqlResultSetMapping(name="getxxxx", entities=@EntityResult(xxxx.class, fields = { @FieldResult(name="x1", column = "x1"), @FieldResult(name="x2", column = "x2")})) …

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variable scope when adding a value to a vector in class constructor

- by TheFuzz

I have a level class and a Enemy_control class that is based off an vector that takes in Enemys as values. in my level constructor I have: Enemy tmp( 1200 ); enemys.Add_enemy( tmp ); // this adds tmp to the vector in Enemy_control enemys being a variable of…

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Retrieve web user's Identity outside of request scope

- by Kendrick

I have an ASP.NET app that logs Audit reports using nHibernate's IPreUpdateListener. In order to set the current user in the Listener events, I was using System.Security.Principal.WindowsIdentity.GetCurrent(). This works fine when debugging on my machine,…

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Query scope within a table trigger in an Oracle database

- by sisslack

I'm been trying to write a table trigger the queries another table that is outside the schema where the trigger will reside. Is this possible? It seems like I have no problem querying tables in my schema but I get: Error: ORA-00942: table or view does…

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Use a named range in an excel worksheet to propagate a listbox

- by user223139

So I have a number of namedRanges in an excel worksheet. I would like to use these to fill in comboboxes on a user form in the same WorkBook. I have tried: cboMember.DataSource = Globals.Sheet1.MemberRange.Value No error is given but the combo is…

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Action method expected parameter named Id and nothing otherwise

- by codingbiz

The Error The parameters dictionary contains a null entry for parameter 'UserId' of non-nullable type 'System.Int64' for method 'System.Web.Mvc.ActionResult Predict(Int64)' in 'sportingbiz.Controllers.PredictionController'. An optional…

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Print all local variables accessible to the current scope in Lua

- by Edu Felipe

I know how to print "all" global variables using the following code for k,v in pairs(_G) do print("Global key", k, "value", v) end So my question is how to do that for all variables that are accessible from the currently executing…

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pdo connection scope

- by Scarface

Hey guys I have a connection class I found for pdo. I am calling the connection method on the page that the file is included on. The problem is that within functions the $conn variable is not defined even though I stated the method was…

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Extract and replace named group regex

- by user557670

I was able to extract href value of anchors in an html string. Now, what I want to achieve is extract the href value and replace this value with a new GUID. I need to return both the replaced html string and list of extracted href value…

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What are parts of a PHP function named?

- by MikeG

I am having trouble figuring out a problem and it is because I don't know the correct terms to be searching for. Could someone please name all the parts of a PHP function and if I'm missing something please add it. function…

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