I got help form www.python-forum.org and I came up with this version of the program. Although it works, it throws errors:
Code
import wx
class TestTree(wx.Frame):
def __init__(self, parent, id, title):
wx.Frame.__init__(self, parent, id, title)
#Menu & toolbar stuffs
menubar = wx.MenuBar()
filemenu = wx.Menu()
filemenu.Append(wx.ID_EXIT, "Exit", "Exit this small app")
self.Bind(wx.EVT_MENU, self.OnClose, id = wx.ID_EXIT)
menubar.Append(filemenu, "File")
self.SetMenuBar(menubar)
self.CreateToolBar()
self.CreateStatusBar()
self.SetStatusText("This small app")
self.panel = wx.Panel(self, -1)
self.books = wx.TreeCtrl(self.panel, -1, size = (120, 200), style = wx.TR_DEFAULT_STYLE|wx.TR_HIDE_ROOT)
self.child = self.books.AddRoot("The Library")
self.Populate()
#Bind to events
self.Bind(wx.EVT_TREE_SEL_CHANGED, self.OnChanged, self.books)
self.Bind(wx.EVT_TREE_ITEM_EXPANDED, self.OnExpanded, self.books)
self.tc = wx.TextCtrl(self.panel, -1, style = wx.TE_MULTILINE|wx.NO_BORDER)
hbox = wx.BoxSizer(wx.HORIZONTAL)
hbox.Add(self.books, 0, wx.EXPAND)
hbox.Add(self.tc, 1, wx.EXPAND)
self.panel.SetSizer(hbox)
self.Layout()
def OnExpanded(self, evt):
selected = evt.GetItem()
self.bookparent = self.books.GetItemText(selected)
def OnChanged(self, evt):
selected = evt.GetItem()
parent = self.books.GetItemParent(selected)
text = "\t Selected Book "+self.books.GetItemText(selected)+ " of type "+ self.books.GetItemText(parent)+"\n"
self.tc.WriteText(text)
def OnClose(self, evt):
self.Close()
def Populate(self):
BooksList = ["Biology", "Physics", "History", "Computer", "Telecommunications"]
for book in BooksList:
j = self.books.AppendItem(self.child, book)
index = BooksList.index(book)
for k in range(1,5):
self.books.AppendItem(j, str(k))
if (__name__ == "__main__"):
app = wx.App(False)
f = TestTree(None, -1, "Testing tree control")
f.Show()
app.MainLoop()
Error: Traceback (most recent call last): File "i:\Hosanna\Programmer Codes\Python\treectrl.py", line 43, in OnChanged text = "\t Selected Book "+self.books.GetItemText(selected)+ " of type "+ self.books.GetItemText(parent)+"\n" File "C:\Python25\Lib\site-packages\wx-2.8-msw-unicode\wx\_controls.py", line 5303, in GetItemText return _controls_.TreeCtrl_GetItemText(*args, **kwargs) wx._core.PyAssertionError: C++ assertion "tvItem->hItem != ((HTREEITEM)(ULONG_PTR)-0x10000)" failed at ..\..\src\msw\treectrl.cpp(854) in wxTreeCtrl::DoGetItem(): can't retrieve virtual root item
Hello All, I want to make a CD/DVD Library where by an admin can do all the operations while any other norma user can do limited operations (simply browsing and searching). I'm still organizing and doing simple design and I need your opinions on this: 1. What is the best login technique (after storing users and passwords in database?). I can get usernames from database as well as from login forms but I'm not sure how to implement comparison the best way!
2. What is the best way of storing password? (secure way)
3. How do I redirect them to the right page after successful login
4. How do I prevent any unlogged user from accessing the Library script
I know that AddSeparator() works with AddSimpleTool(). Why are you using AddLabelTool()?
Because I want to show both text and Icon and I cannot do it with AddSimpleTool(). If there is a way of showing both text and icon, I will be happy to change from Label tool.
Just addition Question, is there any similar method with AddLabel Tool?
In Code::Blocks IDE, select menu item Settings --> Compiler and Debugger. Click the Linker Settings tab. Then click the Add button and enter the name of the library.
Oh I will do a try. I'm now at work (Electronics & Telecommunications Engineer interested in IT). I'm exhausted as far as my head is concerned. That's why I will do it later.
Thanks alot! Hope someone using codeblocks will say something, before I close the thread. I'm happy that very soon I will say bye to boring Looong LoadLibrary/GetProcAddress method :)
Thanks for good explanation. I have one more question on this, will the output exe just link to DLL or it will be Huge exe File? I mean using tedious GetProcAddress (Believe me I don't like even to say it) It will Link to DLL and maintain small exe file. Is it so with .lib option?
I have the .lib file, but I'm very ignorant on how to use it! Can you explain me with little grain of salt how to use it instead of using the tedious GetProcAddress? Thanks for reply
Hi All, so far I have managed to get Book number and type as shown below. The problem is, when all books are expanded and you jump to let say Biology book 1 it shows the last parent. I wonder if there is easy way I can do to get a parent of currently selected items, like when I select book 1 from biology then I get both Book 1 and its parent i.e biology
import wx
class TestTree(wx.Frame):
def __init__(self, parent, id, title):
wx.Frame.__init__(self, parent, id, title)
#Menu & toolbar stuffs
menubar = wx.MenuBar()
filemenu = wx.Menu()
filemenu.Append(wx.ID_EXIT, "Exit", "Exit this small app")
self.Bind(wx.EVT_MENU, self.OnClose, id = wx.ID_EXIT)
menubar.Append(filemenu, "File")
self.SetMenuBar(menubar)
self.CreateToolBar()
self.CreateStatusBar()
self.SetStatusText("This small app")
self.panel = wx.Panel(self, -1)
self.books = wx.TreeCtrl(self.panel, -1, size = (120, 200), style = wx.TR_DEFAULT_STYLE|wx.TR_HIDE_ROOT)
self.child = self.books.AddRoot("The Library")
self.Populate()
#Hold current parent?
self.bookparent = ""
#Bind to events
self.Bind(wx.EVT_TREE_SEL_CHANGED, self.OnChanged, self.books)
self.Bind(wx.EVT_TREE_ITEM_EXPANDED, self.OnExpanded, self.books)
self.tc = wx.TextCtrl(self.panel, -1, style = wx.TE_MULTILINE|wx.NO_BORDER)
hbox = wx.BoxSizer(wx.HORIZONTAL)
hbox.Add(self.books, 0, wx.EXPAND)
hbox.Add(self.tc, 1, wx.EXPAND)
self.panel.SetSizer(hbox)
self.Layout()
def OnExpanded(self, evt):
selected = evt.GetItem()
self.bookparent = self.books.GetItemText(selected)
def OnChanged(self, evt):
selected = evt.GetItem()
text = "\t Selected Book "+self.books.GetItemText(selected)+ " of type "+ self.bookparent+"\n"
self.tc.WriteText(text)
def OnClose(self, evt):
self.Close()
def Populate(self):
BooksList = ["Biology", "Physics", "History", "Computer", "Telecommunications"]
for book in BooksList:
j = self.books.AppendItem(self.child, book)
index = BooksList.index(book)
for k in range(1,5):
self.books.AppendItem(j, str(k))
if (__name__ == "__main__"):
app = wx.App(False)
f = TestTree(None, -1, "Testing tree control")
f.Show()
app.MainLoop()
Hi, I want to Load .dll library on my program. I was using LoadLibrary and GetProcAddress which is tedious work. I saw somewhere Idea of using .lib files but have no clue. I have used google but I got lost. Please help me :(
I have read a little bit on XML and I will need it to get some information from already available XML files. I would like to learn it by making very small playlist. However I have encountered the two beasts. I don't know much of XML, especially with python. So I ask, which is the best way to go? (May be some tutorials on python/XML) Thanks :)
I found example here by vega, I'm lost alittle in the three(may be four) events on the same widget. I need some little light on the events so that I don't just copy and paste without knowing what I'm doing
Hello guys, Please help me with wxTreeCtrl events (I have never dealt with TreeCtrl before). I want to get simple basics how to catch events
As example to clarify my question, I have tree of books and I want just the TextCtrl to display the chosen parent and Item, like "Biology 1" or "Physics 2". Main purpose is to learn TreeCtrl.
I have googled (and still checking google) and the demo+api, but haven't got in good place. Thanks alot
import wx
class TestTree(wx.Frame):
def __init__(self, parent, id, title):
wx.Frame.__init__(self, parent, id, title)
#Menu & toolbar stuffs
menubar = wx.MenuBar()
filemenu = wx.Menu()
filemenu.Append(wx.ID_EXIT, "Exit", "Exit this small app")
self.Bind(wx.EVT_MENU, self.OnClose, id = wx.ID_EXIT)
menubar.Append(filemenu, "File")
self.SetMenuBar(menubar)
self.CreateToolBar()
self.CreateStatusBar()
self.SetStatusText("This small app")
self.panel = wx.Panel(self, -1)
self.books = wx.TreeCtrl(self.panel, -1, size = (120, 200), style = wx.TR_DEFAULT_STYLE|wx.TR_HIDE_ROOT)
self.child = self.books.AddRoot("The Library")
self.Populate()
self.tc = wx.TextCtrl(self.panel, -1, style = wx.TE_MULTILINE|wx.NO_BORDER)
hbox = wx.BoxSizer(wx.HORIZONTAL)
hbox.Add(self.books, 0, wx.EXPAND)
hbox.Add(self.tc, 1, wx.EXPAND)
self.panel.SetSizer(hbox)
self.Layout()
def OnClose(self, evt):
self.Close()
def Populate(self):
BooksList = ["Biology", "Physics", "History", "Computer", "Telecommunications"]
for book in BooksList:
j = self.books.AppendItem(self.child, book)
index = BooksList.index(book)
for k in range(1,5):
self.books.AppendItem(j, str(k))
if (__name__ == "__main__"):
app = wx.App(False)
f = TestTree(None, -1, "Testing tree control")
f.Show()
app.MainLoop()
Are you offended? You missed my point. Actually one of links i gave have even example that is very similar to your problem. I did it as part to help, and you get me back such discouraging answer, very sad!
class vehicle //Sample base class for c++ inheritance tutorial
{
protected:
char colorname[20];
int number_of_wheels;
public:
vehicle();
~vehicle();
void start();
void stop();
void run();
};
class Car: public vehicle //Sample derived class for C++ inheritance tutorial
{
protected:
char type_of_fuel;
public:
Car();
};
You would use a variable like "table_name" in the first line here, and pass that to the connect function. If you are creating a new table, then you would also have to input the field names and type, or use a standard layout for all databases.
table_name = "people_db"
con = sqlite.connect(table_name )
# Get a Cursor object that operates in the context of Connection con
cur = con.cursor()
##--- ONLY CREATE FIRST TIME
cur.execute("CREATE TABLE [B]people[/B] (name_last VARCHAR(20), age INT)")
No problem now on using database placeholder. I want now table name to be a variable and not fixed value. As an example, can you change the statement to use place holder instead of fixed tablename people? (Red coloured one)
Here's some code (just a bunch of crap really) from when I was first testing SQLite that shows how to add, change and delete recs. Note that when you retrieve records you have to test for None, i.e. no records found in db. That threw me for a curve when first starting out.
import sqlite3 as sqlite
##----------------------------------------------------------------------
def add_rec(cur, con):
##cur.execute("INSERT INTO people (name_last, age) values ('Yeltsin', 72)")
cur.execute("INSERT INTO people (name_last, age) values ('Putin', 50)")
cur.execute("INSERT INTO people (name_last, age) values ('Putin', 50)")
cur.execute("INSERT INTO people (name_last, age) values ('Putin', 50)")
cur.execute("INSERT INTO people (name_last, age) values ('Yeltsin', 70)")
##--- add using a tuple instead
person_tuple = ('Barisinov', '30')
cur.execute("insert into people (name_last, age) values (?, ?)", person_tuple)
con.commit()
##----------------------------------------------------------------------
def change_recs_test(cur, con):
cur.execute("UPDATE people SET name_last==:who_dic WHERE age==:age_dic",
{"who_dic": "Chg_Yeltsin", "age_dic": 70})
con.commit()
##----------------------------------------------------------------------
def del_recs_test(cur, con):
who = "Putin"
age=50
cur.execute("DELETE from people where name_last==:who_dic and age==:age_dic",
{"who_dic": who, "age_dic": age})
con.commit()
print "-" * 30, "AFTER Delete"
print_all_recs(cur)
print
##----------------------------------------------------------------------
def print_all_recs(cur):
# Execute the SELECT statement:
print "Printing all recs"
cur.execute("select * from people order by age")
# Retrieve all rows as a sequence and print that sequence:
print cur.fetchall()
#==========================================================================
if __name__ == "__main__":
# Create a connection to the database file
table_name = "people_db"
con = sqlite.connect(table_name )
# Get a Cursor object that operates in the context of Connection con
cur = con.cursor()
##--- ONLY CREATE FIRST TIME
cur.execute("CREATE TABLE people (name_last VARCHAR(20), age INT)") …
Thanks woeeee for code. Please jlm699, can you correct me where I go wrong. Sometimes you do mistakes and you just don't see them until they are pointed out :)
It throws errors CreateDb TypeError: a float is required File "f:\Hosanna\CodeBase\PyCodeBase\sqlite_on_test.py", line 25, in <module> test.CreateDb("test.cb") File "f:\Hosanna\CodeBase\PyCodeBase\sqlite_on_test.py", line 8, in CreateDb self.conn = sql.connect("?", (dbname, ))
When i pass fixed value "test.db" explicitly Then CreateNewTable throws the following error
sqlite3.OperationalError: near "?": syntax error
File "f:\Hosanna\CodeBase\PyCodeBase\sqlite_on_test.py", line 26, in <module> test.CreateNewTable("testing") File "f:\Hosanna\CodeBase\PyCodeBase\sqlite_on_test.py", line 12, in CreateNewTable self.cur.execute("CREATE TABLE IF NOT EXISTS ?(id INTEGER, name TEXT)", (tablename, ))
The popular Geany IDE is written with GTK (not PyGTK).
Wing IDE is written in PyGTK
I would suggest wxPython, for easy learning curve (to my experience). Why? Because I grasped the basics even before I could be fluent in Python. I almost learned them simultaneously (though Python came first) :) PyQT? No, unless you will never develop any commercial app or you are willing to $. PyGTK? Yes why not? But if you want to!
