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  • MySQL Inserting into locked aliased table

    - by Whitey
    I am trying to insert data into a InnoDB MySQL table which is locked using an alias and I cannot for the life of me get it to work! The following works: LOCK TABLES Problems p1 WRITE, Problems p2 WRITE, Server READ; SELECT * FROM Problems p1; UNLOCK TABLES; But try and do an insert and it doesn't work (it claims there is a syntax error round the 'p1' in my INSERT): LOCK TABLES Problems p1 WRITE, Problems p2 WRITE, Server READ; INSERT INTO Problems p1 (SomeCol) VALUES(43534); UNLOCK TABLES; Help please!

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  • Fixed strptime exception with thread lock, but slows down the program

    - by eWizardII
    I have the following code, which when is running inside of a thread (the full code is here - https://github.com/eWizardII/homobabel/blob/master/lovebird.py) for null in range(0,1): while True: try: with open('C:/Twitter/tweets/user_0_' + str(self.id) + '.json', mode='w') as f: f.write('[') threadLock.acquire() for i, seed in enumerate(Cursor(api.user_timeline,screen_name=self.ip).items(200)): if i>0: f.write(", ") f.write("%s" % (json.dumps(dict(sc=seed.author.statuses_count)))) j = j + 1 threadLock.release() f.write("]") except tweepy.TweepError, e: with open('C:/Twitter/tweets/user_0_' + str(self.id) + '.json', mode='a') as f: f.write("]") print "ERROR on " + str(self.ip) + " Reason: ", e with open('C:/Twitter/errors_0.txt', mode='a') as a_file: new_ii = "ERROR on " + str(self.ip) + " Reason: " + str(e) + "\n" a_file.write(new_ii) break Now without the thread lock I generate the following error: Exception in thread Thread-117: Traceback (most recent call last): File "C:\Python27\lib\threading.py", line 530, in __bootstrap_inner self.run() File "C:/Twitter/homobabel/lovebird.py", line 62, in run for i, seed in enumerate(Cursor(api.user_timeline,screen_name=self.ip).items(200)): File "build\bdist.win-amd64\egg\tweepy\cursor.py", line 110, in next self.current_page = self.page_iterator.next() File "build\bdist.win-amd64\egg\tweepy\cursor.py", line 85, in next items = self.method(page=self.current_page, *self.args, **self.kargs) File "build\bdist.win-amd64\egg\tweepy\binder.py", line 196, in _call return method.execute() File "build\bdist.win-amd64\egg\tweepy\binder.py", line 182, in execute result = self.api.parser.parse(self, resp.read()) File "build\bdist.win-amd64\egg\tweepy\parsers.py", line 75, in parse result = model.parse_list(method.api, json) File "build\bdist.win-amd64\egg\tweepy\models.py", line 38, in parse_list results.append(cls.parse(api, obj)) File "build\bdist.win-amd64\egg\tweepy\models.py", line 49, in parse user = User.parse(api, v) File "build\bdist.win-amd64\egg\tweepy\models.py", line 86, in parse setattr(user, k, parse_datetime(v)) File "build\bdist.win-amd64\egg\tweepy\utils.py", line 17, in parse_datetime date = datetime(*(time.strptime(string, '%a %b %d %H:%M:%S +0000 %Y')[0:6])) File "C:\Python27\lib\_strptime.py", line 454, in _strptime_time return _strptime(data_string, format)[0] File "C:\Python27\lib\_strptime.py", line 300, in _strptime _TimeRE_cache = TimeRE() File "C:\Python27\lib\_strptime.py", line 188, in __init__ self.locale_time = LocaleTime() File "C:\Python27\lib\_strptime.py", line 77, in __init__ raise ValueError("locale changed during initialization") ValueError: locale changed during initialization The problem is with thread lock on, each thread runs itself serially basically, and it takes way to long for each loop to run for there to be any advantage to having a thread anymore. So if there isn't a way to get rid of the thread lock, is there a way to have it run the for loop inside of the try statement faster?

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  • C# Mouse option in richtext box

    - by Kasun
    Hi, I got richtext box on my windows application. then i write some text on it. Then i select relevant text and write click, i need to show mouse write click option called "Mark". After i click "Mark" option, i need to show the selected text on message box or in text box. I need C# ans....... :) Please help me.

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  • Embedded "Smart" character LCD driver. Is this a good idea?

    - by chris12892
    I have an embedded project that I am working on, and I am currently coding the character LCD driver. At the moment, the LCD driver only supports "dumb" writing. For example, let's say line 1 has some text on it, and I make a call to the function that writes to the line. The function will simply seek to the beginning of the line and write the text (plus enough whitespace to erase whatever was last written). This is well and good, but I get the feeling it is horribly inefficient sometimes, since some lines are simply: "Some-reading: some-Value" Rather than "brute force" replacing the entire line, I wanted to develop some code that would figure out the best way to update the information on the LCD. (just as background, it takes 2 bytes to seek to any char position. I can then begin writing the string) My idea was to first have a loop. This loop would compare the input to the last write, and in doing so, it would cover two things: A: Collect all the differences between the last write and the input. For every contiguous segment (be it same or different) add two bytes to the byte count. This is referenced in B to determine if we are wasting serial bandwidth. B: The loop would determine if this is really a smart thing to do. If we end up using more bytes to update the line than to "brute force" the line, then we should just return and let the brute force method take over. We should exit the smart write function as soon as this condition is met to avoid wasting time. The next part of the function would take all the differences, seek to the required char on the LCD, and write them. Thus, if we have a string like this already on the LCD: "Current Temp: 80F" and we want to update it to "Current Temp: 79F" The function will go through and see that it would take less bandwidth to simply seek to the "8" and write "79". The "7" will cover the "8" and the "9" will cover the "0". That way, we don't waste time writing out the entire string. Does this seem like a practical idea?

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  • Failed to download repository information

    - by Bob Van Elst
    When i clicked check this error message came up. But it does not come up when update manager strarts automatically. When you open update manager this error comes up. Any ideas on how to fix it? Details: *W:GPG error: (http://ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY FC8CA6FE7B1FEC7C, W:Failed to fetch (http://ppa.launchpad.net/jonabeck/ppa/ubuntu/dists/precise/main/binary-amd64/Packages 404 Not Found , W:Failed to fetch (http://ppa.launchpad.net/jonabeck/ppa/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found , W:Failed to fetch (http://ppa.launchpad.net/jonabeck/ppa/ubuntu/dists/precide/main/source/Sources 404 Not Found , E:Some index files failed to download. They have been ignored, or old ones used instead.*

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  • Capture video from WPF app

    - by Julien Couvreur
    I want to write a C# application which can record a video capture of one of its WPF controls. Is there a solution in .Net to record video from a control, or is there some library I could use? My goal is to write a SketchCast application. The use case is the following: launch SketchCast app and press record button, write ink into a WPF ink area, and talk, press stop, recorded voice and ink animation get saved into a video file in some encoding.

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  • How to cross-compile programs for the Raspberry Pi with gcc?

    - by InkBlend
    I am fond of using gcc to compile small little C and C++ programs on my main computer. However, I also have a Raspberry Pi, and, being a 700-MHz single-core computer, I would prefer to not have to do my development work on it every time I want to create a binary for it. How (for I know that there's a way) do I cross-compile my program for the Raspberry Pi using my x86 laptop? And is there a way that I may compile C(++) programs on the Pi but produce an x86 binary? If it's any help, "The SoC is a Broadcom BCM2835. This contains an ARM1176JZFS, with floating point..." (according to the official Raspberry Pi FAQ).

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  • Using javascript to access a json array from php

    - by celenius
    I'm trying to understand how my php script can pass an array to my javascript code. Using the following php, I pass an array: $c = array(3,2,7); echo json_encode($c); My javascript is as follows: $.post("getLatLong.php", { latitude: 500000}, function(data){ arrayData = data document.write(arrayData) document.write(arrayData[0]); document.write(arrayData[0]); document.write(arrayData[0]); }); </script> What is printed out on screen is [3,2,7][3, I'm trying to understand how json_encode works - I though I would be able to pass the array to a variable, and then access it like a normal javascript array, but it views my array as one large text string. How do ensure that it reads it like an array?

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  • Rows and Column of Excel File

    - by Mark
    It is possible to write a code that specifying the rows and column of spread sheet in terms of NUMBERS and NOT LIKE (B2:D6) Example: excelSheet.Range("B2:D6").Interior.Color = RGB(100, 100, 255) instead of B2 and D6 I want to write 5 rows and 3 column.. It is posible to write in vb.net 2003 code?

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  • 11.10 - Update Manager Not working

    - by Mattlinux1
    W:Failed to fetch cdrom://Ubuntu 11.10 Oneiric Ocelot - Release i386 (20111012)/dists/oneiric/main/binary-i386/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs , W:Failed to fetch cdrom://Ubuntu 11.10 Oneiric Ocelot - Release i386 (20111012)/dists/oneiric/restricted/binary-i386/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs , E:Some index files failed to download. They have been ignored, or old ones used instead. This happens when i hit the check button? and the updates were working before.

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  • Spreadsheet::WriteExcel - data_validation

    - by sid_com
    #! /usr/bin/env perl use warnings; use 5.012; use Spreadsheet::WriteExcel; my $workbook = Spreadsheet::WriteExcel->new( 'test_test.xls' ) or die $!; my $sheet = $workbook->add_worksheet(); my $format_in = $workbook->add_format( align => 'center', valign => 'vcenter' ); my $format_st = $workbook->add_format( align => 'center', valign => 'vcenter' ); $format_in->set_num_format ( 'hh:mm' ); $format_st->set_num_format ( '[h]:mm' ); $sheet->set_row( 0, 22 ); $sheet->set_row( 1, 22 ); $sheet->set_column( 'A:D', 20, $format_in ); $sheet->set_column( 'E:E', 20, $format_st ); $sheet->write( 'A1', 'begin am' ); $sheet->write( 'B1', 'end am' ); $sheet->write( 'C1', 'begin pm' ); $sheet->write( 'D1', 'end pm' ); $sheet->write( 'E1', 'time' ); $sheet->data_validation( 'A2:D2', { validate => 'time', criteria => 'between', minimum => 'T06:00', maximum => 'T20:00', }); $sheet->write_formula( 'E2', '=(B2-A2)+(D2-C2)' ); $workbook->close() or die $!; Which kind of data_validation would check if the "end am"-value is greater than the "begin am"-value (and "end pm" grater then "begin pm")? I tried this, but it didn't work: $sheet->data_validation( 'B2', { validate => 'time', criteria => '>=', value => '=A2', }); $sheet->data_validation( 'D2', { validate => 'time', criteria => '>=', value => '=C2', }); Spreadsheet::WriteExcel

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  • How to test custom handler500?

    - by Gr1N
    I write my handler for server errors and define it at root urls.py: handler500 = 'myhandler' And I want to write unittest for testing how it works. For testing I write view with error and define it in test URLs configuration, when I make request to this view in browser I see my handler and receive status code 500, but when I launch test that make request to this view I see stack trace and my test failed. Have you some ideas for testing handler500 by unittests?

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  • Replace without the replace function

    - by Molly Potter
    Assignment: Let X and Y be two words. Find/Replace is a common word processing operation that finds each occurrence of word X and replaces it with word Y in a given document. Your task is to write a program that performs the Find/Replace operation. Your program will prompt the user for the word to be replaced (X), then the substitute word (Y ). Assume that the input document is named input.txt. You must write the result of this Find/Replace operation to a file named output.txt. Lastly, you cannot use the replace() string function built into Python (it would make the assignment much too easy). To test your code, you should modify input.txt using a text editor such as Notepad or IDLE to contain different lines of text. Again, the output of your code must look exactly like the sample output. This is my code: input_data = open('input.txt','r') #this opens the file to read it. output_data = open('output.txt','w') #this opens a file to write to. userStr= (raw_input('Enter the word to be replaced:')) #this prompts the user for a word userReplace =(raw_input('What should I replace all occurences of ' + userStr + ' with?')) #this prompts the user for the replacement word for line in input_data: words = line.split() if userStr in words: output_data.write(line + userReplace) else: output_data.write(line) print 'All occurences of '+userStr+' in input.txt have been replaced by '+userReplace+' in output.txt' #this tells the user that we have replaced the words they gave us input_data.close() #this closes the documents we opened before output_data.close() It won't replace anything in the output file. Help!

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  • Do Nvidia's drivers work in 12.10?

    - by Pratyush Nalam
    I recently upgraded to 12.10 and was just checking for proprietary drivers to be installed. I found this in software sources When I enabled Nvidia binary Xorg driver, unity disappears along with the launcher and everything. I just have the wallpaper. I did manage to open the terminal and open software sources and select the nouveau display driver which fixed it. Question is how to enable NVIDIA binary Xorg driver and have everything working? Hardware: Apple MacBook Pro 9,1 Mid 2012 15 inch non-retina. NVIDIA GeForce GT650M EDIT: I tried the solution here. And now, when I boot into Ubuntu, I get a blinking cursor. That's all! No tty1, nothing. help !!

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  • Getting a 404 when using the Nexus 7 installer PPA, how do I fix this? [duplicate]

    - by Vitaliy
    This question already has an answer here: How can I fix a 404 Error when using a PPA? 2 answers ubuntu 13.10 sudo add-apt-repository ppa:ubuntu-nexus7/ubuntu-nexus7-installer OK sudo apt-get update: W: ?? ??????? ???????? http://ppa.launchpad.net/ubuntu-nexus7/ubuntu-nexus7-installer/ubuntu/dists/saucy/main/binary-amd64/Packages 404 Not Found W: ?? ??????? ???????? http://ppa.launchpad.net/ubuntu-nexus7/ubuntu-nexus7-installer/ubuntu/dists/saucy/main/binary-i386/Packages 404 Not Found Thanks for the answer

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  • Multiple asserts in single test?

    - by Gern Blandston
    Let's say I want to write a function that validates an email address with a regex. I write a little test to check my function and write the actual function. Make it pass. However, I can come up with a bunch of different ways to test the same function ([email protected]; [email protected]; test.test.com, etc). Do I put all the incantations that I need to check in the same, single test with several ASSERTS or do I write a new test for every single thing I can think of? Thanks!

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  • Will there ever be a version of Java which does not perform Type Erasure

    - by user63904
    Type erasure enables Java applications that use generics to maintain binary compatibility with Java libraries and applications that were created before generics Generics were introduced in Java 1.5, so presumably the statement "applications that were created before generics" is referring to Java 1.4? Given that Java 1.4 entered its End Of Life around 2006 and was officially End Of Life'd around 2008. Why is type erasure still being performed in Java 7, etc... Has the statement now become self referential i.e. Type erasure enables Java applications that use generics to maintain binary compatibility with Java libraries and applications that were created with Java versions that perform Type Erasure. Meaning therefore that there will never be a version of Java that doesn't perform Type Erasure.

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  • Roles for "Hhtpcontext.user" in Asp.net Formauthentication

    - by Hemant Kothiyal
    In asp.net global.asax, where should i write code to assign role in httpcontext.user? What i have read in site is that it should be part of "Application_onPostauthentication" event of global.asax but i am not getting that if i write there then it is execute for each request of user. I think this should fetch one for one authentication at session. I don't know even why microsoft also suggest to write code there? Please if anybody know the fact make me clear?

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  • Understanding character encoding in typical Java web app

    - by Marcus
    Some pseudocode from a typical web app: String a = "A bunch of text"; //UTF-16 saveTextInDb(a); //Write to Oracle VARCHAR(15) column String b = readTextFromDb(); //UTF-16 out.write(b); //Write to http response In the first line we create a Java String which uses UTF-16. When you save to Oracle VARCHAR(15) does Oracle also store this as UTF-16? Does the length of an Oracle VARCHAR refer to number of Unicode characters (and not number of bytes)? And then when we write b to the ServletResponse is this being written as UTF-16 or are we by default converting to another encoding like UTF-8?

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  • How can I connect to MSMQ over a workgroup?

    - by cyclotis04
    I'm writing a simple console client-server app using MSMQ. I'm attempting to run it over the workgroup we have set up. They run just fine when run on the same computer, but I can't get them to connect over the network. I've tried adding Direct=, OS:, and a bunch of combinations of other prefaces, but I'm running out of ideas, and obviously don't know the right way to do it. My queue's don't have GUIDs, which is also slightly confusing. Whenever I attempt to connect to a remote machine, I get an invalid queue name message. What do I have to do to make this work? Server: class Program { static string _queue = @"\Private$\qim"; static MessageQueue _mq; static readonly object _mqLock = new object(); static void Main(string[] args) { _queue = Dns.GetHostName() + _queue; lock (_mqLock) { if (!MessageQueue.Exists(_queue)) _mq = MessageQueue.Create(_queue); else _mq = new MessageQueue(_queue); } Console.Write("Starting server at {0}:\n\n", _mq.Path); _mq.Formatter = new BinaryMessageFormatter(); _mq.BeginReceive(new TimeSpan(0, 1, 0), new object(), OnReceive); while (Console.ReadKey().Key != ConsoleKey.Escape) { } _mq.Close(); } static void OnReceive(IAsyncResult result) { Message msg; lock (_mqLock) { try { msg = _mq.EndReceive(result); Console.Write(msg.Body); } catch (Exception ex) { Console.Write("\n" + ex.Message + "\n"); } } _mq.BeginReceive(new TimeSpan(0, 1, 0), new object(), OnReceive); } } Client: class Program { static MessageQueue _mq; static void Main(string[] args) { string queue; while (_mq == null) { Console.Write("Enter the queue name:\n"); queue = Console.ReadLine(); //queue += @"\Private$\qim"; try { if (MessageQueue.Exists(queue)) _mq = new MessageQueue(queue); } catch (Exception ex) { Console.Write("\n" + ex.Message + "\n"); _mq = null; } } Console.Write("Connected. Begin typing.\n\n"); _mq.Formatter = new BinaryMessageFormatter(); ConsoleKeyInfo key = new ConsoleKeyInfo(); while (key.Key != ConsoleKey.Escape) { key = Console.ReadKey(); _mq.Send(key.KeyChar.ToString()); } } }

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  • when using javascript how do you use select form to do if else statements?

    - by Nelson
    How do you take a value of an option in a select form and use it for a if else statement? for example if apple is selected as an option then write to the document how to make applesauce but orange is selected then write how to make orange? so far I have a basic form and select options and I know how to do the document.write but I dont know how to use a select form with if else thanks for the help

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  • Update information outdated, "Failed to fetch cdrom"

    - by user285603
    I have a warning triangle on the top of my screen. When I click on it, it says that my update information is outdated. When I type sudo apt-get update && sudo apt-get upgrade into a terminal, I get this message: W: Failed to fetch cdrom://Ubuntu 14.04 LTS _Trusty Tahr_ - Release i386 (20140417)/dists/trusty/main/binary-i386/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs W: Failed to fetch cdrom://Ubuntu 14.04 LTS _Trusty Tahr_ - Release i386 (20140417)/dists/trusty/restricted/binary-i386/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs E: Some index files failed to download. They have been ignored, or old ones used instead. Any ideas?

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  • I Made Simple Generator,, Is there any faster way ??

    - by Rami Jarrar
    Hi, i do like this: import time f = open('wl4.txt', 'w') hh = 0 ###################################### for n in range(1,5): for l in range(33,127): if n==1: b = chr(l) + '\n' f.write(b) hh += 1 elif n==2: for s0 in range(33, 127): b = chr(l) + chr(s0) + '\n' f.write(b) hh += 1 elif n==3: for s0 in range(33, 127): for s1 in range(33, 127): b = chr(l) + chr(s0) + chr(s1) + '\n' f.write(b) hh += 1 elif n==4: for s0 in range(33, 127): for s1 in range(33, 127): for s2 in range(33,127): b = chr(l) + chr(s0) + chr(s1) + chr(s2) + '\n' f.write(b) hh += 1 ###################################### print "We Made %d Words." %(hh) ###################################### f.close() So, is there any faster method to make it faster,,

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