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  • Exit Tks mainloop in Python?

    - by Olof
    I'm writing a slideshow program with Tkinter, but I don't know how to go to the next image without binding a key. import os, sys import Tkinter import Image, ImageTk import time root = Tkinter.Tk() w, h = root.winfo_screenwidth(), root.winfo_screenheight() root.overrideredirect(1) root.geometry("%dx%d+0+0" % (w, h)) root.focus_set() root.bind("<Escape>", lambda e: e.widget.quit()) image_path = os.path.join(os.getcwd(), 'images/') dirlist = os.listdir(image_path) for f in dirlist: try: image = Image.open(image_path+f) tkpi = ImageTk.PhotoImage(image) label_image = Tkinter.Label(root, image=tkpi) # ? label_image.place(x=0,y=0,width=w,height=h) root.mainloop(0) except IOError: pass root.destroy() I would like to add a time.sleep(10) "instead" of the root.mainloop(0) so that it would go to the next image after 10s. Now it changes when I press ESC. How can I have a timer there?

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  • How to do GUI for bash scripts?

    - by maxorq
    I want to do some graphic dialogs for my script but don't know how. I hear something about GTK-Server or something like that. If someone know how to link bash with tcl/tk I also be satisfied. Please do not post something like "change to C++" because my project must be a script in BASH, there are no other option. Any ideas? P.S. Sorry for bad english! EDIT: Thanks for answers but I don't want "graphics" like colors in console, but windows that shows like hmmmm..... net browser which I can move, minimalize etc. I will test xmessage, but I don't think that will be that what I searching for. EDIT2: And one more thing. I don't want make a simple dialog like yes/no, but some interface like progress bars and buttons, something like game :)

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  • Creating Ruby applications for Windows.

    - by Omega
    I want to develop a Windows application. Honestly I care little about cross-platforms for now (but still would be good) I want to use Ruby, since it has quite a simple syntax and is so.. well, simple and easy to learn. My application is like a "game level creator", where you can design your own level and then run it with another application which is a "game level player" by reading the project file created by the creator app. You get the idea. Now, I got a new PC and is completely clean. Absolutely no trace of my old Ruby experiments and fails. First of all, I will need to choose a GUI platform for my Ruby application! Can you recommend me one? I have heard of Shoes and Tk, but want to know what you think.

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  • How to find error in TCL code

    - by Adi
    Hi all, I am learning TCL and wanted to know how can I find out errors in my code. I mean what line no is error happening or how can I debug it. Following is the code which I am trying : proc ldelete {list value}{ set ix [lsearch -exact $list $value] if{$ix >=0}{ return [lreplace $list $ix $ix] } else { return $list } } Following is the error i am getting : extra characters after close-brace I will appreciate the help. Thanks aditya

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  • Should I be building GUI applications on Windows using Perl & Tk?

    - by CheeseConQueso
    I have a bunch of related Perl scripts that I would like to put together in one convenient place. So I was thinking of building a GUI and incorporating the scripts. I'm using Strawberry Perl on Windows XP and have just installed Tk from cpan about fifteen minutes ago. Before I go for it, I want some sound advice either for or against it. My other option is to translate the Perl scripts into VB and use Visual Studio 2008, but that might be too much hassle for an outcome that might end up all the same had I just stuck with Perl & Tk. I haven't looked yet, but maybe there is a module for Visual Studio that would allow me to invoke Perl scripts? The main requirements are: It must be able to communicate with MySQL It must be able to fetch & parse XML files from the internet It must be transportable, scalable, and sustainable What direction would you take?

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  • Scid Chess Program Compiling issue

    - by lbochitt
    First of all I would like to point that I'm new to Ubuntu so sorry if what I am asking is ridiculous. I have downloaded Scid 4.4 chess program and I have tried to compile it as it was explained on its website: 1) Initialize git. 2) Create a folder where you want to download and (?) compile the source, then cast: git init on your command line. 3) You're now ready to download the sources recall Fulvio's spell: git clone git://scid.git.sourceforge.net/gitroot/scid/scid This should get you the latest Scid source. 4) You're now ready to compile Scid. In principle, all you need to do is: ./configure and then make 5) If you get stuck, you probably need to get developer versions of tcl/tk. This translates into issuing these three commands: sudo apt-get install tcl8.5-dev sudo apt-get install tk8.5-dev sudo apt-get install zlib1g -dev 6) You should now be ready to compile The problem is that when I run ./configure to start compiling the following message appears on Terminal: configure: Makefile configuration program for Scid Tcl/Tk version: 8.5 Your operating system is: Linux 3.8.0-19-generic Location of "tcl.h": /usr/include/tcl8.5 Location of "tk.h": /usr/include/tcl8.5 Location of Tcl 8.5 library: not found Location of Tk 8.5 library: not found Checking if your system already has zlib installed: yes. Using Makefile.conf. Not all settings could be determined! The default Makefile was written. You will need to edit it before you can compile Scid. What should I do? Has anybody faced this problem before? Thanks in advance I have run ls -l /usr/include/tcl8.5/tcl.h here's the result: -rw-r--r-- 1 root root 87291 abr 22 10:45 /usr/include/tcl8.5/tcl.h I have also tried what you suggested Could you run git reset --hard HEAD and git clean -d -f to clean up everything using Git? Then run ./configure again. Just a shot in the dark - I've seen some GNU automake stuff still listening to its "cached" version of the results or something. Still no solution. I don't know why it can't recognize the library though it is installed I opened configure to see where the program looked for the library. This is the code: # libraryPath: List of possible locations of Tcl/Tk library. set libraryPath { /usr/lib /usr/lib64 /usr/local/tcl/lib /usr/local/lib /usr/X11R6/lib /opt/tcltk/lib /usr/lib/x86_64-linux-gnu } lappend libraryPath "/usr/lib/tcl${tclv}" lappend libraryPath "/usr/lib/tk${tclv}" lappend libraryPath "/usr/lib/tcl${tclv_nodot}" lappend libraryPath "/usr/lib/tk${tclv_nodot}" # Try to add tcl_library and auto_path values to libraryPath, # in case the user has a non-standard Tcl/Tk library location: if {[info exists ::tcl_library]} { lappend headerPath \ [file join [file dirname [file dirname $::tcl_library]] include] lappend libraryPath [file dirname $::tcl_library] lappend libraryPath $::tcl_library } if {[info exists ::auto_path]} { foreach name $::auto_path { lappend libraryPath $name } } if {! [info exists var(TCL_INCLUDE)]} { puts -nonewline { Location of "tcl.h": } set opt(tcl_h) [findDir "tcl.h" $headerPath "TCL_VERSION.*$tclv"] if {$opt(tcl_h) == ""} { puts "not found" set success 0 set opt(tcl_h) "$::defaultVar(TCL_INCLUDE)" } else { puts $opt(tcl_h) } } set opt(tcl_lib) "" if {! [info exists var(TCL_LIBRARY)]} { puts -nonewline " Location of Tcl $tclv library: " set opt(tcl_lib) [findDir "libtcl${tclv}.*" $libraryPath] if {$opt(tcl_lib) == ""} { set opt(tcl_lib) [findDir "libtcl${tclv_nodot}.*" $libraryPath] if {$opt(tcl_lib) == ""} { puts "not found" set success 0 set opt(tcl_lib) "$opt(tcl_h)" set opt(tcl_lib_file) "tcl\$(TCL_VERSION)" } else { set opt(tcl_lib_file) "tcl${tclv_nodot}" puts $opt(tcl_lib) } } else { set opt(tcl_lib_file) "tcl\$(TCL_VERSION)" puts $opt(tcl_lib) } } if {! [info exists var(TCL_INCLUDE)]} { set var(TCL_INCLUDE) "-I$opt(tcl_h)" } if {! [info exists var(TCL_LIBRARY)]} { set var(TCL_LIBRARY) "-L$opt(tcl_lib) -l$opt(tcl_lib_file)" } return $success So I guess (And by guess I mean i have no idea how to code) I should write somewhere in here usr/lib/tcl8.5 and usr/lib/tk8.5, am I right?

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  • close window in Tkinter message box

    - by rejinacm
    Hello, link text How to handle the "End Now" error in the below code: import Tkinter from Tkconstants import * import tkMessageBox tk = Tkinter.Tk() class MyApp: def __init__(self,parent): self.myparent = parent self.frame = Tkinter.Frame(tk,relief=RIDGE,borderwidth=2) self.frame.pack() self.message = Tkinter.Message(tk,text="Symbol Disolay") label=Tkinter.Label(self.frame,text="Is Symbol Displayed") label.pack() self.button1=Tkinter.Button(self.frame,text="YES") self.button1.pack(side=BOTTOM) self.button1.bind("<Button-1>", self.button1Click) self.button2=Tkinter.Button(self.frame,text="NO") self.button2.pack() self.button2.bind("<Button-1>", self.button2Click) self.myparent.protocol("WM_DELETE_WINDOW", self.handler) def button1Click(self, event): print "pressed yes" def button2Click(self, event): print "pressed no" def handler(self): if tkMessageBox.askokcancel("Quit?", "Are you sure you want to quit?"): self.myparent.quit() myapp = MyApp(tk) tk.mainloop()

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  • Tkinter button bind

    - by rejinacm
    Hello, Help urgently.. This is my code: import Tkinter from Tkconstants import * tk = Tkinter.Tk() class MyApp: def __init__(self,parent): self.frame = Tkinter.Frame(tk,relief=RIDGE,borderwidth=2) self.frame.pack() self.message = Tkinter.Message(tk,text="Symbol Disolay") label=Tkinter.Label(self.frame,text="Is Symbol Displayed") label.pack() self.button1=Tkinter.Button(self.frame,text="YES") self.button1.pack(side=BOTTOM) self.button1.bind("<Button-1>", self.button1Click) self.button2=Tkinter.Button(self.frame,text="NO") self.button2.pack() self.button2.bind("<Button-1>", self.button2Click) def button1Click(self, event): "pressed yes" def button2Click(self, event): "pressed no" myapp = MyApp(tk) tk.mainloop() What shall i do in button1Click() and button2Click() so that they return "YES" or "NO" to my program in string format ???

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  • One National Team One Event &ndash; SharePoint Saturday Kansas City

    - by MOSSLover
    I wasn’t expect to run an event from 1,000 miles away, but some stuff happened you know like it does and I opted in.  It was really weird, because people asked why are you living in NJ and running Kansas City?  I did move, but it was like my baby and Karthik didn’t have the ability to do it this year.  I found it really challenging, because I could not physically be in Kansas City.  At first I was freaking out and Lee Brandt, Brian Laird, and Chris Geier offered to help.  Somehow I couldn’t come the day of the event.  Time-wise it just didn’t work out.  I could do all the leg work prior to the event, but weekends just were not good.  I was going to be in DC until March or April on the weekdays, so leaving that weekend was too tough.  As it worked out Lee was my eyes and ears for the venue.  Brian was the sponsor and prize box coordinator if anyone needed to send items.  Lee also helped Brian the day of the event move all the boxes.  I did everything we could do electronically, such as get the sponsors coordinate with Michael Lotter on invoicing and getting the speakers, posting the submissions, budgeting the money, setting up a speaker dinner by phone, plus all that other stuff you do behind the scenes.  Chris was there to help Lee and Brian the day of the event and help us out with the speaker dinner.  Karthik finally got back from India and he was there the night before getting the folders together and the signs and stuffing it all.  Jason Gallicchio also helped me out (my cohort for SPS NYC) as he did the schedule and helped with posting the speakers abstracts and so did Chris Geier by posting the bios.  The lot of them enlisted a few other monkeys to help out.  It was the weirdest thing I’ve ever seen, but it worked.  Around 100+ attendees ended up showing and I hear it was  a great event.  Jason, Michael, Chris, Karthik, Brian, and Lee are not all from the same area, but they helped me out in bringing this event together.  It was a national SharePoint Saturday team that brought together a specific local event for Kansas City.  It’s like a metaphor for the entire SharePoint Community.  We help our own kind out we don’t let me fail.  I know Lee and Brian aren’t technically SharePoint People they are honorary SharePoint Community Members.  Thanks everyone for the support and help in bringing this event together.  Technorati Tags: SharePoint Saturday,SPS KC,SharePoint,SharePoint Saturday Kanas City,Kansas City

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  • Decorate Your Desktop with the Rock Stars of Science [Wallpaper]

    - by Jason Fitzpatrick
    This understated desktop wallpaper showcases notable names in science with accompanying icons to represent their contribution to the field. The icons are the work of Megan Lee of Megan Lee Studios–you order prints, t-shirts, and other items with her designs on them here–and the wallpaper arrangement comes to us courtesy of Reddit user wastingtime247–check out the via link below for more arrangements. Science Rock Stars Wallpaper by Megan Lee Studios [via Reddit] How to Access Your Router If You Forget the Password Secure Yourself by Using Two-Step Verification on These 16 Web Services How to Fix a Stuck Pixel on an LCD Monitor

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  • tkinter frame does not show on startup

    - by Jzz
    this is my first question on SO, so correct me please if I make a fool of myself. I have this fairly complicated python / Tkinter application (python 2.7). On startup, the __init__ loads several frames, and loads a database. When that is finished, I want to set the application to a default state (there are 2 program states, 'calculate' and 'config'). Setting the state of the application means that the appropriate frame is displayed (using grid). When the program is running, the user can select a program state in the menu. Problem is, the frame is not displayed on startup. I get an empty application (menu bar and status bar are displayed). When I select a program state in the menu, the frame displays as it should. Question: What am I doing wrong? Should I update idletasks? I tried, but no result. Anything else? Background: I use the following to switch program states: def set_program_state(self, state): '''sets the program state''' #try cleaning all the frames: try: self.config_frame.grid_forget() except: pass try: self.tidal_calculations_frame.grid_forget() except: pass try: self.tidal_grapth_frame.grid_forget() except: pass if state == "calculate": print "Switching to calculation mode" self.tidal_calculations_frame.grid() #frame is preloaded self.tidal_calculations_frame.fill_data(routes=self.routing_data.routes, deviations=self.misc_data.deviations, ship_types=self.misc_data.ship_types) self.tidal_grapth_frame.grid() self.program_state = "calculate" elif state == "config": print "Switching to config mode" self.config_frame = GUI_helper.config_screen_frame(self, self.user) #load frame first (contents depend on type of user) self.config_frame.grid() self.program_state = "config" I understand that this is kind of messy to read, so I simplified things for testing, using this: def set_program_state(self, state): '''sets the program state''' #try cleaning all the frames: try: self.testlabel_1.grid_forget() except: pass try: self.testlabel_2.grid_forget() except: pass if state == "calculate": print "switching to test1" self.testlabel_1 = tk.Label(self, text="calculate", borderwidth=1, relief=tk.RAISED) self.testlabel_1.grid(row=0, sticky=tk.W+tk.E) elif state == "config": print "switching to test1" self.testlabel_2 = tk.Label(self, text="config", borderwidth=1, relief=tk.RAISED) self.testlabel_2.grid(row=0, sticky=tk.W+tk.E) But the result is the same. The frame (or label in this test) is not displayed at startup, but when the user selects the state (calling the same function) the frame is displayed. UPDATE the sample code in the comments (thanks for that!) pointed me in another direction. Further testing revealed (what I think) the cause of the problem. Disabling the display of the status bar made the program work as expected. Turns out, I used pack to display the statusbar and grid to display the frames. And they are in the same container, so problems arise. I fixed that by using only pack inside the main container. But the same problem is still there. This is what I use for the statusbar: self.status = GUI_helper.StatusBar(self.parent) self.status.pack(side=tk.BOTTOM, fill=tk.X) And if I comment out the last line (pack), the config frame loads on startup, as per this line: self.set_program_state("config") But if I let the status bar pack inside the main window, the config frame does not show. Where it does show when the user asks for it (with the same command as above).

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  • Using Tkinter in python to edit the title bar

    - by Dan
    I am trying to add a custom title to a window but I am having troubles with it. I know my code isn't right but when I run it, it creates 2 windows instead, one with just the title tk and another bigger window with "Simple Prog". How do I make it so that the tk window has the title "Simple Prog" instead of having a new additional window. I dont think I'm suppose to have the Tk() part because when i have that in my complete code, there's an error from tkinter import Tk, Button, Frame, Entry, END class ABC(Frame): def __init__(self,parent=None): Frame.__init__(self,parent) self.parent = parent self.pack() ABC.make_widgets(self) def make_widgets(self): self.root = Tk() self.root.title("Simple Prog")

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  • Is there a a C-like way to get item number from enum in java ?

    - by Hernán Eche
    Perhap this is a simple basic question Having an enum public enum TK{ ID,GROUP,DATA,FAIL; } Can I get the order number for example ID=0, GROUP=2, DATA=3, FAIL=4 ? This is a way to to that, but a weird and long one! =S public enum TK{ ID(0),GROUP(1),DATA(2),FAIL(3); int num; TK(int n) { this.num=n; } public int get() { return num; } }; to get numbers so I write TK.ID.get(), TK.GROUP.get(), etc... I don't like that there is a better way? ( C enums, C macros..I miss you both ) thanks

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  • Which browser does my computer use to open a Web page? [on hold]

    - by msh210
    I know little about networking the Internet, but, from what I understand, it works — very approximately — as follows: I, sitting at the computer example.com, send a message saying, roughly, "get http://s.tk" to my ISP, which passes the message along, eventually to the machine at s.tk. The s.tk machine gets "example.comhas sent 'gethttp://s.tk'", so sendssomefileto its ISP which passes the file along, eventually to the machine atexample.com`. When the file gets back to example.com, my computer, how does my computer know what to do with it? I'm sure the headers (or something else) indicate it's a Web page rather than, say, a Usenet post — that's not my question. My question is: how does it know whether to display the Web page in my open Opera window or my open Firefox window, or my other open Firefox window, or, heck, to open a new browser instance?

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  • pymatplotlib without xserver

    - by vigilant
    Is it possible to use networkx or pymatplotlib without an xserver running? I keep getting the following error with their first example (of networkx): Traceback (most recent call last): File "test.py", line 17, in <module> nx.draw(G,pos,node_color='#A0CBE2',edge_color=colors,width=4,edge_cmap=plt.cm.Blues,with_labels=False) File "/usr/local/lib/python2.6/dist-packages/networkx-1.3-py2.6.egg/networkx/drawing/nx_pylab.py", line 124, in draw cf=pylab.gcf() File "/usr/lib/pymodules/python2.6/matplotlib/pyplot.py", line 276, in gcf return figure() File "/usr/lib/pymodules/python2.6/matplotlib/pyplot.py", line 254, in figure **kwargs) File "/usr/lib/pymodules/python2.6/matplotlib/backends/backend_tkagg.py", line 90, in new_figure_manager window = Tk.Tk() File "/usr/lib/python2.6/lib-tk/Tkinter.py", line 1646, in __init__ self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use) _tkinter.TclError: couldn't connect to display ""

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  • php drop down how to control the hide and show

    - by user329394
    Hi all, i want to control the drop down box to control show or hide statement. I do like this but it seems it doesn't work, i have it working if im using radio button. can help me with the code? which part am i wrong? thank you. $dbcnx = mysql_connect('localhost', 'root', ''); mysql_select_db('dbase'); if($_POST['gred'])$gred=$_POST['gred'];else $gred=""; <script language="JavaScript"> function funcHide(elemHide1,elemHide2,elemHide3) { document.getElementById(elemHide1).style.display = 'none'; document.getElementById(elemHide2).style.display = 'none'; document.getElementById(elemHide3).style.display = 'none'; document.getElementById(elemShow).style.visibility = 'visible'; } function funcShow(elemShow1,elemShow2,elemShow3) { document.getElementById(elemShow1).style.display = 'block'; document.getElementById(elemShow2).style.display = 'block'; document.getElementById(elemShow3).style.display = 'block'; document.getElementById(elemShow1).style.visibility = 'visible'; document.getElementById(elemShow2).style.visibility = 'visible'; document.getElementById(elemShow3).style.visibility = 'visible'; } </script> <table> <tr> <td>Gred </td> <td>:</td> <td><select name="gred" id="gred"> <option value="">&nbsp;</option> <option value="A17" <?php if($gred=='A17')echo "selected";?> onClick="funcShow('box1', 'box2', 'box3');">A17</option> <option value="A22" <?php if($gred=='A22')echo "selected";?>>A22</option> <option value="A27" <?php if($gred=='A27')echo "selected";?>>A27</option> </select> </td> </tr> <tr> <td>TK</td> <td>:</td> <td> <select name="tk" id="tk"> <option value="">&nbsp;</option> <option value="01" <?php if($tk=='01')echo "selected";?>>01</option> <option value="02" <?php if($tk=='02')echo "selected";?>>02</option> <option value="03" <?php if($tk=='03')echo "selected";?>>03</option> <option value="04" <?php if($tk=='04')echo "selected";?>>04</option> <option value="05" <?php if($tk=='05')echo "selected";?>>05</option> <option value="06" <?php if($tk=='06')echo "selected";?>>06</option> </select> <?} ?> </td> </tr> <tr> <td colspan="2" valign="top">Status</td> <td valign="top">:</td> <td> <?php $qry = "SELECT * from dtable where userid='".$USER->id."'"; $sql = mysql_query($qry); $row = mysql_num_rows($sql); if($row==0) { ?> <input type=radio name="status" <?php if($status=='retake') {?>checked="checked"<?php } ?> value="retake" onClick="funcShow('box1', 'box2', 'box3');">Retake<br /></tr> <tr> <td colspan='2'> <div id="box1" style="display: none;">Last Date <br> Latest Date<br> </div></td> <td><div id="box2" style="display: none;">: <br> : <br></div></td> <td> <div id="box3" style="display: none;"> <?php $rsu[lastdate] ?> <br> <?php $rsu[latestdate] ?> </div> </td>

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  • How to make WPF DataGrid Column Header transparent

    - by joerage
    Hi, I am trying to make the column header of my WPF Datagrid to be transparent. I am able to set it to a color without problem, but I can't have it transparent. Here is what I tried: <Style x:Key="DatagridColumnHeaderStyle" TargetType="{x:Type tk:DataGridColumnHeader}"> <Setter Property="Background" Value="Transparent" /> <Setter Property="Foreground" Value="#C2C4C6" /> </Style> <Style x:Key="DashboardGridStyle" TargetType="{x:Type tk:DataGrid}"> <Setter Property="ColumnHeaderStyle" Value="{StaticResource DatagridColumnHeaderStyle}" /> <Setter Property="Background" Value="Transparent" /> <Setter Property="RowBackground" Value="Transparent" /> </Style> <tk:DataGrid Style="{StaticResource DashboardGridStyle}" > ... </tk:DataGrid> With this code, it seems to take the default brush. What am I missing?

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  • DELETE and EDIT is not working in my python program

    - by user2968025
    This is a simple python program that ADD, DELETE, EDIT and VIEW student records. The problem is, DELETE and EDIT is not working. I dont know why but when I tried removing one '?' in the DELETE dunction, I had the error that says there are only 8 columns and it needs 10. But originally, there are only 9 columns. I don't know where it got the other one to make it 10. Please help.. :( import sys import sqlite3 import tkinter import tkinter as tk from tkinter import * from tkinter.ttk import * def newRecord(): studentnum="" name="" age="" birthday="" address="" email="" course="" year="" section="" con=sqlite3.connect("Students.db") cur=con.cursor() cur.execute("CREATE TABLE IF NOT EXISTS student(studentnum TEXT, name TEXT, age TEXT, birthday TEXT, address TEXT, email TEXT, course TEXT, year TEXT, section TEXT)") def save(): studentnum=en1.get() name=en2.get() age=en3.get() birthday=en4.get() address=en5.get() email=en6.get() course=en7.get() year=en8.get() section=en9.get() student=(studentnum,name,age,birthday,address,email,course,year,section) cur.execute("INSERT INTO student(studentnum,name,age,birthday,address,email,course,year,section) VALUES(?,?,?,?,?,?,?,?,?)",student) con.commit() win=tkinter.Tk();win.title("Students") lbl=tkinter.Label(win,background="#000",foreground="#ddd",width=30,text="Add Record") lbl.pack() lbl1=tkinter.Label(win,width=30,text="Student Number : ") lbl1.pack() en1=tkinter.Entry(win,width=30) en1.pack() lbl2=tkinter.Label(win,width=30,text="Name : ") lbl2.pack() en2=tkinter.Entry(win,width=30) en2.pack() lbl3=tkinter.Label(win,width=30,text="Age : ") lbl3.pack() en3=tkinter.Entry(win,width=30) en3.pack() lbl4=tkinter.Label(win,width=30,text="Birthday : ") lbl4.pack() en4=tkinter.Entry(win,width=30) en4.pack() lbl5=tkinter.Label(win,width=30,text="Address : ") lbl5.pack() en5=tkinter.Entry(win,width=30) en5.pack() lbl6=tkinter.Label(win,width=30,text="Email : ") lbl6.pack() en6=tkinter.Entry(win,width=30) en6.pack() lbl7=tkinter.Label(win,width=30,text="Course : ") lbl7.pack() en7=tkinter.Entry(win,width=30) en7.pack() lbl8=tkinter.Label(win,width=30,text="Year : ") lbl8.pack() en8=tkinter.Entry(win,width=30) en8.pack() lbl9=tkinter.Label(win,width=30,text="Section : ") lbl9.pack() en9=tkinter.Entry(win,width=30) en9.pack() btn1=tkinter.Button(win,background="#000",foreground="#ddd",width=30,text="Save Student",command=save) btn1.pack() def editRecord(): studentnum1="" def edit(): studentnum1=en10.get() studentnum="" name="" age="" birthday="" address="" email="" course="" year="" section="" con=sqlite3.connect("Students.db") cur=con.cursor() row=cur.fetchone() cur.execute("DELETE FROM student WHERE name = '%s'" % studentnum1) con.commit() def save(): studentnum=en1.get() name=en2.get() age=en3.get() birthday=en4.get() address=en5.get() email=en6.get() course=en7.get() year=en8.get() section=en8.get() student=(studentnum,name,age,email,birthday,address,email,course,year,section) cur.execute("INSERT INTO student(studentnum,name,age,email,birthday,address,email,course,year,section) VALUES(?,?,?,?,?,?,?,?,?)",student) con.commit() win=tkinter.Tk();win.title("Students") lbl=tkinter.Label(win,background="#000",foreground="#ddd",width=30,text="Edit Reocrd :"+'\t'+studentnum1) lbl.pack() lbl1=tkinter.Label(win,width=30,text="Student Number : ") lbl1.pack() en1=tkinter.Entry(win,width=30) en1.pack() lbl2=tkinter.Label(win,width=30,text="Name : ") lbl2.pack() en2=tkinter.Entry(win,width=30) en2.pack() lbl3=tkinter.Label(win,width=30,text="Age : ") lbl3.pack() en3=tkinter.Entry(win,width=30) en3.pack() lbl4=tkinter.Label(win,width=30,text="Birthday : ") lbl4.pack() en4=tkinter.Entry(win,width=30) en4.pack() lbl5=tkinter.Label(win,width=30,text="Address : ") lbl5.pack() en5=tkinter.Entry(win,width=30) en5.pack() lbl6=tkinter.Label(win,width=30,text="Email : ") lbl6.pack() en6=tkinter.Entry(win,width=30) en6.pack() lbl7=tkinter.Label(win,width=30,text="Course : ") lbl7.pack() en7=tkinter.Entry(win,width=30) en7.pack() lbl8=tkinter.Label(win,width=30,text="Year : ") lbl8.pack() en8=tkinter.Entry(win,width=30) en8.pack() lbl9=tkinter.Label(win,width=30,text="Section : ") lbl9.pack() en9=tkinter.Entry(win,width=30) en9.pack() btn1=tkinter.Button(win,background="#000",foreground="#ddd",width=30,text="Save Record",command=save) btn1.pack() win=tkinter.Tk();win.title("Edit Student") lbl=tkinter.Label(win,background="#000",foreground="#ddd",width=30,text="Edit Record") lbl.pack() lbl10=tkinter.Label(win,width=30,text="Student Number : ") lbl10.pack() en10=tkinter.Entry(win) en10.pack() btn2=tkinter.Button(win,background="#000",foreground="#ddd",width=30,text="Edit",command=edit) btn2.pack() def deleteRecord(): studentnum1="" win=tkinter.Tk();win.title("Delete Student Record") lbl=tkinter.Label(win,background="#000",foreground="#ddd",width=30,text="Delete Record") lbl.pack() lbl10=tkinter.Label(win,text="Student Number") lbl10.pack() en10=tkinter.Entry(win) en10.pack() def delete(): studentnum1=en10.get() con=sqlite3.connect("Students.db") cur=con.cursor() row=cur.fetchone() cur.execute("DELETE FROM student WHERE name = '%s';" % studentnum1) con.commit() win=tkinter.Tk();win.title("Record Deleted") lbl=tkinter.Label(win,background="#000",foreground="#ddd",width=30,text="Record Deleted :") lbl.pack() lbl=tkinter.Label(win,width=30,text=studentnum1) lbl.pack() btn=tkinter.Button(win,background="#000",foreground="#ddd",width=30,text="Ok",command=win.destroy) btn.pack() btn2=tkinter.Button(win,background="#000",foreground="#ddd",width=30,text="Delete",command=delete) btn2.pack() def viewRecord(): con=sqlite3.connect("Students.db") cur=con.cursor() win=tkinter.Tk();win.title("View Student Record"); row=cur.fetchall() lbl1=tkinter.Label(win,background="#000",foreground="#ddd",width=300,text="\n\tStudent Number"+"\t\tName"+"\t\tAge"+"\t\tBirthday"+"\t\tAddress"+"\t\tEmail"+"\t\tCourse"+"\t\tYear"+"\t\nSection") lbl1.pack() for row in cur.execute("SELECT * FROM student"): lbl2=tkinter.Label(win,width=300,text= row[0] + '\t\t' + row[1] + '\t' + row[2] + '\t\t' + row[3] + '\t\t' + row[4] + '\t\t' + row[5] + '\t\t' + row[6] + '\t\t' + row[7] + '\t\t' + row[8] + '\n') lbl2.pack() con.close() but1=tkinter.Button(win,background="#000",foreground="#fff", width=150,text="Close",command=win.destroy) but1.pack() root=tkinter.Tk();root.title("Student Records") menubar=tkinter.Menu(root) manage=tkinter.Menu(menubar,tearoff=0) manage.add_command(label='New Record',command=newRecord) manage.add_command(label='Edit Record',command=editRecord) manage.add_command(label='Delete Record',command=deleteRecord) menubar.add_cascade(label='Manage',menu=manage) view=tkinter.Menu(menubar,tearoff=0) view.add_command(label='View Record',command=viewRecord) menubar.add_cascade(label='View',menu=view) root.config(menu=menubar) lbl=tkinter.Label(root,background="#000",foreground="#ddd",font=("Verdana",15),width=30,text="Student Records") lbl.pack() lbl1=tkinter.Label(root,text="\nSubmitted by :") lbl1.pack() lbl2=tkinter.Label(root,text="Chavez, Vissia Nicole P") lbl2.pack() lbl3=tkinter.Label(root,text="BSIT 4-4") lbl3.pack()

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  • Tricky SQL query involving consecutive values

    - by Gabriel
    I need to perform a relatively easy to explain but (given my somewhat limited skills) hard to write SQL query. Assume we have a table similar to this one: exam_no | name | surname | result | date ---------+------+---------+--------+------------ 1 | John | Doe | PASS | 2012-01-01 1 | Ryan | Smith | FAIL | 2012-01-02 <-- 1 | Ann | Evans | PASS | 2012-01-03 1 | Mary | Lee | FAIL | 2012-01-04 ... | ... | ... | ... | ... 2 | John | Doe | FAIL | 2012-02-01 <-- 2 | Ryan | Smith | FAIL | 2012-02-02 2 | Ann | Evans | FAIL | 2012-02-03 2 | Mary | Lee | PASS | 2012-02-04 ... | ... | ... | ... | ... 3 | John | Doe | FAIL | 2012-03-01 3 | Ryan | Smith | FAIL | 2012-03-02 3 | Ann | Evans | PASS | 2012-03-03 3 | Mary | Lee | FAIL | 2012-03-04 <-- Note that exam_no and date aren't necessarily related as one might expect from the kind of example I chose. Now, the query that I need to do is as follows: From the latest exam (exam_no = 3) find all the students that have failed (John Doe, Ryan Smith and Mary Lee). For each of these students find the date of the first of the batch of consecutively failing exams. Another way to put it would be: for each of these students find the date of the first failing exam that comes after their last passing exam. (Look at the arrows in the table). The resulting table should be something like this: name | surname | date_since_failing ------+---------+-------------------- John | Doe | 2012-02-01 Ryan | Smith | 2012-01-02 Mary | Lee | 2012-01-04 Ann | Evans | 2012-02-03 How can I perform such a query? Thank you for your time.

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  • python networkx

    - by krisdigitx
    hi, i am trying to use networkx with python, when i run this program, it get this error, is there anything missing? #!/usr/bin/env python import networkx as nx import matplotlib import matplotlib.pyplot import matplotlib.pyplot as plt G=nx.Graph() G.add_node(1) G.add_nodes_from([2,3,4,5,6,7,8,9,10]) #nx.draw_graphviz(G) #nx_write_dot(G, 'node.png') nx.draw(G) plt.savefig("/var/www/node.png") Traceback (most recent call last): File "graph.py", line 13, in <module> nx.draw(G) File "/usr/lib/pymodules/python2.5/networkx/drawing/nx_pylab.py", line 124, in draw cf=pylab.gcf() File "/usr/lib/pymodules/python2.5/matplotlib/pyplot.py", line 276, in gcf return figure() File "/usr/lib/pymodules/python2.5/matplotlib/pyplot.py", line 254, in figure **kwargs) File "/usr/lib/pymodules/python2.5/matplotlib/backends/backend_tkagg.py", line 90, in new_figure_manager window = Tk.Tk() File "/usr/lib/python2.5/lib-tk/Tkinter.py", line 1650, in __init__ self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use) _tkinter.TclError: no display name and no $DISPLAY environment variable

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  • Tkinter mouse event initially triggered

    - by user3714884
    I'm currently learning Tkinter and I cannot find a solution for my problem here nor outside Stackoverflow. In a nutshell, all events that I bind to my widgets are triggered initialy and don't respond to my actions. In this example, the red rectangle appears on the canvas when I run the code, and color=random.choice(['red', 'blue']) revealed that the event binding doesn't work after that: import Tkinter as tk class application(tk.Frame): def __init__(self, master=None): tk.Frame.__init__(self, master) self.can = tk.Canvas(master, width=200, height=200) self.can.bind('<Button-2>', self.draw()) self.can.grid() def draw(self): self.can.create_rectangle(50, 50, 100, 100, fill='red') app = application() app.mainloop() I use a Mac platform, but I haven't got a clue about its role in the problem. Could anyone please point me at the mistake i did here?

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