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  • Which method of adding items to the ASP.NET Dictionary class is more efficient?

    - by ahmd0
    I'm converting a comma separated list of strings into a dictionary using C# in ASP.NET (by omitting any duplicates): string str = "1,2, 4, 2, 4, item 3,item2, item 3"; //Just a random string for the sake of this example and I was wondering which method is more efficient? 1 - Using try/catch block: Dictionary<string, string> dic = new Dictionary<string, string>(); string[] strs = str.Split(','); foreach (string s in strs) { if (!string.IsNullOrWhiteSpace(s)) { try { string s2 = s.Trim(); dic.Add(s2, s2); } catch { } } } 2 - Or using ContainsKey() method: string[] strs = str.Split(','); foreach (string s in strs) { if (!string.IsNullOrWhiteSpace(s)) { string s2 = s.Trim(); if (!dic.ContainsKey(s2)) dic.Add(s2, s2); } }

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  • Select all items of union but not the last one!

    - by 100r
    I have few texboxes, dropdown lists, etc.. They have their css classes. I want to select all elements of specific class(es) but NOT the last element from group of all classes. <asp:TextBox ID="TextBox1" runat="server" CssClass="class1" ></asp:TextBox> <asp:TextBox ID="TextBox2" runat="server" CssClass="class2" ></asp:TextBox> <asp:TextBox ID="TextBox3" runat="server" CssClass="class2" ></asp:TextBox> I want to select only TextBox1 and TextBox2, not TextBox3! selector should be something like this $("(.class1,.class1):not(:last)") or something like $(".class1,.class1").filter(":not(:last)") but of course none of it is working :) any sugestions? tnx in advance!

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  • How to pop items from a collection in Java?

    - by Tom Brito
    Is there a method in JDK or apache commons to "pop" a list of elements from a java.util.List? I mean, remove the list of elements and return it, like this method: public Collection pop(Collection elementsToPop, Collection elements) { Collection popped = new ArrayList(); for (Object object : elementsToPop) { if (elements.contains(object)) { elements.remove(object); popped.add(object); } } return popped; }

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  • how to get powershell to look for files in other folders when moving items?

    - by steeluser
    I have written this script to move files to the destination folder. Looks like I am missing something here because when I run the script, it is only looking for .zqx files in current directory and not all the drives. Please note that the ( dir $paths..) part is returning the list of .zqx files promptly. Paths.txt has drive letters like this C:\ D:\ E:\ $paths = get-content paths.txt mv (dir $paths -r -fi *.zqx | ?{$_.lastwritetime -lt ($sevendaysold)}) -dest e:\xqz Thanks Steeluser

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  • When the current toolbar is touched previous toolbar items are activated.

    - by srikanth rongali
    I have a UIToolBar *toolbar1. I have 3 buttons on the toolbar. And the tool bar is at the bottom of the view. The buttons are like library button, moreApps button, recordVideo button. If I touch the library button a new view(a UITableViewController) appears. I used presentModelViewController for it. If I touch moreApps button a new view (a UIViewController) appears and it loaded from http//. The recordButton touch gives another UIViewController view. When the moreApps button is touched and the view is loaded, it have the content from web and a UIToolBar *toolbar2 at the bottom the view. It has a refresh button and done button. The problem is when I touch the toolbar2 (not on the refresh button and done button) the previous views button are activated and corresponding views of previous buttons(library button, playVideo button) are loaded. I am not able to understand about this problem. Thank you.

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  • User interface for addition/deletion of items to a list?

    - by agentcris
    I have a ban list that I'm building as part of an application that displays articles. This ban list will contain keywords, which if found in an article, would lead to the article disabled(the article will not be displayed on the front-end) I'm having a tough time visualizing the UI. I could always display a textarea and ask the user to enter keywords comma separated and when they want to delete again the textarea will be presented and they can edit the entered keywords. But I find my idea very unfriendly to the user. My question is how do I program the UI so that its easy to add new keywords. I also would like to be adviced on a nifty way showing the existing keywords and also deleting them. This ban list will be part of the admin panel/backend and will be accessible only to the site administrator.

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  • WPF Binding to Items within a collection? (or converter with parameters)

    - by Sonic Soul
    i am using a WPF DataGrid, and in my Details row, i would like to show separate objects within a sub collection of each grid item. Is it possible to have a finer control of Path? for example something like... Path=SubCollection['ItemX'] etc.. also, if i was to use a converter, i don't want to have to create a separate converter for each item.. so would there be a way to supply a parameter to a converter that could than determine which collection item to return??

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  • Android ListView Item Visibility

    - by user1478754
    I'm trying to create a screen that displays multiples items. For this, I've created a listview but I'm not sure how to approach how to add/remove items from it. Since I'm using custom listview items, I've created my own listadapter but now I need a way to add items on a button click. Is there a way to create listview that can take an indefinite amount of items (instead of passing it in an fixed length array of View objects)? Also what's the best way to remove items from listviews? setVisibility?

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  • How does the WP7 Pivot control dynamically load pivot items?

    - by mztan
    IIRC, the Pivot control only loads a child PivotItem if it is the currently shown child. I would then guess that the previously seen child is also somehow unloaded, presumably still stored in memory, but hidden from the UI. What I'm wondering is, how does the Pivot control dynamically load/unload a child control, and can that behavior be imitated within a custom UserControl? As for unloading, is it as simple as collapsing the previous child's visibility, or is something trickier going on? That is to say, supposing I use my own UserControl like: <my:CustomUserControl> <TextBlock x:Name="_textBlock" Text="wait for it ..." /> </my:CustomUserControl> Normally, the child TextBlock is instantiated when the surrounding PhoneApplicationPage is instantiated, via InitializeComponent and all that. Is there any way to postpone this behavior and load the child programmatically?

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  • C# Object Array CopyTo links both arrays' values?

    - by Dutchie432
    Okay, I have what I think is a simple question.. or just a case of me being a C# beginner. I have an array of custom objects (clsScriptItem) that I am populating from a database. Once the items are loaded, I want to back them up to "backup" array so I can revert the information back after changing the main array. However, when I use CopyTo to copy the array and then alter the original array, the backup array is also being altered... I though CopyTo merely copied values + structure from one array to another. private void backupItems() { lastSavedItems = new clsScriptItem[items.Length]; items.CopyTo(lastSavedItems, 0); //items[0].nexts[0] is 2 //lastSavedItems[0].nexts[0] is 2 items[0].nexts[0] = "-1"; //items[0].nexts[0] is -1 //lastSavedItems[0].nexts[0] is also -1 } How do I backup this data without having the two arrays be 'linked'??

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  • How is a set partitioned into valid and invalid items using LINQ?

    - by Aaron Anodide
    Is there a way to write a single LINQ expression to get the same result of the following code? var validations = new Func<conversion, bool>[] { c => c.affiliate.affiliate_id > 0, c => c.campaign_id > 0 }; var invalidConversions = from c in extractedConversions where validations.Any(valid => !valid(c)) select c; var validConversions = from c in extractedConversions where validations.All(valid => valid(c)) select c;

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  • JavaScript: Can I declare a variable by querying which function is called? (Newbie)

    - by belle3WA
    I'm working with an existing JavaScript-powered cart module that I am trying to modify. I do not know JS and for various reasons need to work with what is already in place. The text that appears for my quantity box is defined within an existing function: function writeitems() { var i; for (i=0; i<items.length; i++) { var item=items[i]; var placeholder=document.getElementById("itembuttons" + i); var s="<p>"; // options, if any if (item.options) { s=s+"<select id='options"+i+"'>"; var j; for (j=0; j<item.options.length; j++) { s=s+"<option value='"+item.options[j].name+"'>"+item.options[j].name+"</option>"; } s=s+"</select>&nbsp;&nbsp;&nbsp;"; } // add to cart s=s+method+"Quantity: <input id='quantity"+i+"' value='1' size='3'/> "; s=s+"<input type='submit' value='Add to Cart' onclick='addtocart("+i+"); return false;'/></p>"; } placeholder.innerHTML=s; } refreshcart(false); } I have two different types of quantity input boxes; one (donations) needs to be prefaced with a dollar sign, and one (items) should be blank. I've taken the existing additem function, copied it, and renamed it so that there are two identical functions, one for items and one for donations. The additem function is below: function additem(name,cost,quantityincrement) { if (!quantityincrement) quantityincrement=1; var index=items.length; items[index]=new Object; items[index].name=name; items[index].cost=cost; items[index].quantityincrement=quantityincrement; document.write("<span id='itembuttons" + index + "'></span>"); return index; } Is there a way to declare a global variable based on which function (additem or adddonation) is called so that I can add that into the writeitems function so display or hide the dollar sign as needed? Or is there a better solution? I can't use HTML in the body of the cart page because of the way it is currently coded, so I'm depending on the JS to take care of it. Any help for a newbie is welcome. Thanks!

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  • JavaScript: Is there a better way to retain your array but efficiently concat or replace items?

    - by Michael Mikowski
    I am looking for the best way to replace or add to elements of an array without deleting the original reference. Here is the set up: var a = [], b = [], c, i, obj; for ( i = 0; i < 100000; i++ ) { a[ i ] = i; b[ i ] = 10000 - i; } obj.data_list = a; Now we want to concatenate b INTO a without changing the reference to a, since it is used in obj.data_list. Here is one method: for ( i = 0; i < b.length; i++ ) { a.push( b[ i ] ); } This seems to be a somewhat terser and 8x (on V8) faster method: a.splice.apply( a, [ a.length, 0 ].concat( b ) ); I have found this useful when iterating over an "in-place" array and don't want to touch the elements as I go (a good practice). I start a new array (let's call it keep_list) with the initial arguments and then add the elements I wish to retain. Finally I use this apply method to quickly replace the truncated array: var keep_list = [ 0, 0 ]; for ( i = 0; i < a.length; i++ ){ if ( some_condition ){ keep_list.push( a[ i ] ); } // truncate array a.length = 0; // And replace contents a.splice.apply( a, keep_list ); There are a few problems with this solution: there is a max call stack size limit of around 50k on V8 I have not tested on other JS engines yet. This solution is a bit cryptic Has anyone found a better way?

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  • What is a good java data structure for storing nested items (like cities in states)?

    - by anotherAlan
    I'm just getting started in Java and am looking for advice on a good way to store nested sets of data. For example, I'm interested in storing city population data that can be accessed by looking up the city in a given state. (Note: eventually, other data will be stored with each city as well, this is just the first attempt at getting started.) The current approach I'm using is to have a StateList Object which contains a HashMap that stores State Objects via a string key (i.e. HashMap<String, State>). Each State Object contains its own HashMap of City Objects keyed off the city name (i.e. HashMap<String, City>). A cut down version of what I've come up with looks like this: // TestPopulation.java public class TestPopulation { public static void main(String [] args) { // build the stateList Object StateList sl = new StateList(); // get a test state State stateAl = sl.getState("AL"); // make sure it's there. if(stateAl != null) { // add a city stateAl.addCity("Abbeville"); // now grab the city City cityAbbevilleAl = stateAl.getCity("Abbeville"); cityAbbevilleAl.setPopulation(2987); System.out.print("The city has a pop of: "); System.out.println(Integer.toString(cityAbbevilleAl.getPopulation())); } // otherwise, print an error else { System.out.println("That was an invalid state"); } } } // StateList.java import java.util.*; public class StateList { // define hash map to hold the states private HashMap<String, State> theStates = new HashMap<String, State>(); // setup constructor that loads the states public StateList() { String[] stateCodes = {"AL","AK","AZ","AR","CA","CO"}; // etc... for (String s : stateCodes) { State newState = new State(s); theStates.put(s, newState); } } // define method for getting a state public State getState(String stateCode) { if(theStates.containsKey(stateCode)) { return theStates.get(stateCode); } else { return null; } } } // State.java import java.util.*; public class State { // Setup the state code String stateCode; // HashMap for cities HashMap<String, City> cities = new HashMap<String, City>(); // define the constructor public State(String newStateCode) { System.out.println("Creating State: " + newStateCode); stateCode = newStateCode; } // define the method for adding a city public void addCity(String newCityName) { City newCityObj = new City(newCityName); cities.put(newCityName, newCityObj); } // define the method for getting a city public City getCity(String cityName) { if(cities.containsKey(cityName)) { return cities.get(cityName); } else { return null; } } } // City.java public class City { // Define the instance vars String cityName; int cityPop; // setup the constructor public City(String newCityName) { cityName = newCityName; System.out.println("Created City: " + newCityName); } public void setPopulation(int newPop) { cityPop = newPop; } public int getPopulation() { return cityPop; } } This is working for me, but I'm wondering if there are gotchas that I haven't run into, or if there are alternate/better ways to do the same thing. (P.S. I know that I need to add some more error checking in, but right now, I'm focused on trying to figure out a good data structure.) (NOTE: Edited to change setPop() and getPop() to setPopulation() and getPopulation() respectively to avoid confucsion)

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  • Any idea why this query always returns duplicate items?

    - by Kardo
    I want to get all Images not used by current ItemID. The this subquery but it also always returns duplicate Images: EDITED select Images.ImageID, Images.ItemStatus, Images.UserName, Images.Url, Image_Item.ItemID, Image_Item.ItemID from Images left join (select ImageID, ItemID, MAX(DateCreated) x from Image_Item where ItemID != '5a0077fe-cf86-434d-9f3b-7ff3030a1b6e' group by ImageID, ItemID having count(*) = 1) image_item on Images.imageid = image_item.imageid where ItemID is not null I guess the problem is with the subquery which I can't avoid duplicate rows: select ImageID, ItemID, MAX(DateCreated) x from Image_Item where ItemID != '5a0077fe-cf86-434d-9f3b-7ff3030a1b6e' group by ImageID, ItemID having count(*) = 1 Result: F2EECBDC-963D-42A7-90B1-4F82F89A64C7 0578AC61-3C32-4A1D-812C-60A09A661E71 F2EECBDC-963D-42A7-90B1-4F82F89A64C7 9A4EC913-5AD6-4F9E-AF6D-CF4455D81C10 42BC8B1A-7430-4915-9CDA-C907CBC76D6A CB298EB9-A105-4797-985E-A370013B684F 16371C34-B861-477C-9A7C-DEB27C8F333D 44E6349B-7EBF-4C7E-B3B0-1C6E2F19992C Table: Images ImageID uniqueidentifier UserName nvarchar(100) DateCreated smalldatetime Url nvarchar(250) ItemStatus char(1) Table: Image_Item ImageID uniqueidentifier ItemID uniqueidentifier UserName nvarchar(100) ItemStatus char(1) DateCreated smalldatetime Any kind help is highly appreciated.

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  • Why isn't pyinstaller making me an .exe file?

    - by Matt Miller
    I am attempting to follow this guide to make a simple Hello World script into an .exe file. I have Windows Vista with an AMD 64-bit processor I have installed Python 2.6.5 (Windows AMD64 version) I have set the PATH (if that's the right word) so that the command line recognizes Python I have installed UPX (there only seems to be a 32-bit version for Windows) and pasted a copy of upx.exe into the Python26 folder as instructed. I have installed Pywin (Windows AMD 64 Python 2.6 version) I have run Pyinstaller's Configure.py. It gives some error messages but seems to complete. I don't know if this is what's causing the problem, so the following is what it says when I run it: C:\Python26\Pyinstaller\branches\py26winConfigure.py I: read old config from C:\Python26\Pyinstaller\branches\py26win\config.dat I: computing EXE_dependencies I: Finding TCL/TK... I: Analyzing C:\Python26\DLLs_tkinter.pyd W: Cannot get binary dependencies for file: W: C:\Python26\DLLs_tkinter.pyd W: Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 608, in get Imports return _getImports_pe(pth) File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 275, in _ge tImports_pe importva, importsz = datadirs[1] IndexError: list index out of range I: Analyzing C:\Python26\DLLs_ctypes.pyd W: Cannot get binary dependencies for file: W: C:\Python26\DLLs_ctypes.pyd W: Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 608, in get Imports return _getImports_pe(pth) File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 275, in _ge tImports_pe importva, importsz = datadirs[1] IndexError: list index out of range I: Analyzing C:\Python26\DLLs\select.pyd W: Cannot get binary dependencies for file: W: C:\Python26\DLLs\select.pyd W: Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 608, in get Imports return _getImports_pe(pth) File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 275, in _ge tImports_pe importva, importsz = datadirs[1] IndexError: list index out of range I: Analyzing C:\Python26\DLLs\unicodedata.pyd W: Cannot get binary dependencies for file: W: C:\Python26\DLLs\unicodedata.pyd W: Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 608, in get Imports return _getImports_pe(pth) File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 275, in _ge tImports_pe importva, importsz = datadirs[1] IndexError: list index out of range I: Analyzing C:\Python26\DLLs\bz2.pyd W: Cannot get binary dependencies for file: W: C:\Python26\DLLs\bz2.pyd W: Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 608, in get Imports return _getImports_pe(pth) File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 275, in _ge tImports_pe importva, importsz = datadirs[1] IndexError: list index out of range I: Analyzing C:\Python26\python.exe I: Dependent assemblies of C:\Python26\python.exe: I: amd64_Microsoft.VC90.CRT_1fc8b3b9a1e18e3b_9.0.21022.8_none I: Searching for assembly amd64_Microsoft.VC90.CRT_1fc8b3b9a1e18e3b_9.0.21022.8_ none... I: Found manifest C:\Windows\WinSxS\Manifests\amd64_microsoft.vc90.crt_1fc8b3b9a 1e18e3b_9.0.21022.8_none_750b37ff97f4f68b.manifest I: Searching for file msvcr90.dll I: Found file C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21 022.8_none_750b37ff97f4f68b\msvcr90.dll I: Searching for file msvcp90.dll I: Found file C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21 022.8_none_750b37ff97f4f68b\msvcp90.dll I: Searching for file msvcm90.dll I: Found file C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21 022.8_none_750b37ff97f4f68b\msvcm90.dll I: Adding Microsoft.VC90.CRT\Microsoft.VC90.CRT.manifest I: Adding Microsoft.VC90.CRT\msvcr90.dll I: Adding Microsoft.VC90.CRT\msvcp90.dll I: Adding Microsoft.VC90.CRT\msvcm90.dll W: Cannot get binary dependencies for file: W: C:\Python26\python.exe W: Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 608, in get Imports return _getImports_pe(pth) File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 275, in _ge tImports_pe importva, importsz = datadirs[1] IndexError: list index out of range I: Analyzing C:\Windows\WinSxS\Manifests\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e 3b_9.0.21022.8_none_750b37ff97f4f68b.manifest I: Analyzing C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.210 22.8_none_750b37ff97f4f68b\msvcr90.dll W: Cannot get binary dependencies for file: W: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21022.8_none_ 750b37ff97f4f68b\msvcr90.dll W: Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 608, in get Imports return _getImports_pe(pth) File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 275, in _ge tImports_pe importva, importsz = datadirs[1] IndexError: list index out of range I: Analyzing C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.210 22.8_none_750b37ff97f4f68b\msvcp90.dll W: Cannot get binary dependencies for file: W: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21022.8_none_ 750b37ff97f4f68b\msvcp90.dll W: Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 608, in get Imports return _getImports_pe(pth) File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 275, in _ge tImports_pe importva, importsz = datadirs[1] IndexError: list index out of range I: Analyzing C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.210 22.8_none_750b37ff97f4f68b\msvcm90.dll W: Cannot get binary dependencies for file: W: C:\Windows\WinSxS\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.21022.8_none_ 750b37ff97f4f68b\msvcm90.dll W: Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 608, in get Imports return _getImports_pe(pth) File "C:\Python26\Pyinstaller\branches\py26win\bindepend.py", line 275, in _ge tImports_pe importva, importsz = datadirs[1] IndexError: list index out of range I: could not find TCL/TK I: testing for Zlib... I: ... Zlib available I: Testing for ability to set icons, version resources... I: ... resource update available I: Testing for Unicode support... I: ... Unicode available I: testing for UPX... I: ...UPX available I: computing PYZ dependencies... I: done generating C:\Python26\Pyinstaller\branches\py26win\config.dat My Python script (named Hello.py) is the same as the example: #!/usr/bin/env python for i in xrange(10000): print "Hello, World!" This is my BAT file, in the same directory: set PIP=C:\Python26\Pyinstaller\branches\py26win\ python %PIP%Makespec.py --onefile --console --upx --tk Hello.py python %PIP%Build.py Hello.spec When I run Hello.bat in the command prompt several files are made, none of which are an .exe file, and the following is displayed: C:\My Filesset PIP=C:\Python26\Pyinstaller\branches\py26win\ C:\My Filespython C:\Python26\Pyinstaller\branches\py26win\Makespec.py --onefil e --console --upx --tk Hello.py wrote C:\My Files\Hello.spec now run Build.py to build the executable C:\My Filespython C:\Python26\Pyinstaller\branches\py26win\Build.py Hello.spec I: Dependent assemblies of C:\Python26\python.exe: I: amd64_Microsoft.VC90.CRT_1fc8b3b9a1e18e3b_9.0.21022.8_none Traceback (most recent call last): File "C:\Python26\Pyinstaller\branches\py26win\Build.py", line 1359, in main(args[0], configfilename=opts.configfile) File "C:\Python26\Pyinstaller\branches\py26win\Build.py", line 1337, in main build(specfile) File "C:\Python26\Pyinstaller\branches\py26win\Build.py", line 1297, in build execfile(spec) File "Hello.spec", line 3, in pathex=['C:\My Files']) File "C:\Python26\Pyinstaller\branches\py26win\Build.py", line 292, in _init _ raise ValueError, "script '%s' not found" % script ValueError: script 'C:\Python26\Pyinstaller\branches\py26win\support\useTK.py' n ot found I have limited knowledge with the command prompt, so please take baby steps with me if I need to do something there.

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