combobox

[paulie70]

hello

i am new at python en gui tkinter my combobox don't show

import tkinter  
from tkinter import ttk  
 


window = tkinter.Tk()
window.title("data entry form")

frame = tkinter.Frame(window)
frame.pack()
# saving user info


user_info_frame =tkinter.LabelFrame(frame, text="user information")
user_info_frame.grid(row= 0, column=0, padx=20, pady=20)

first_name_label =tkinter.Label(user_info_frame, text="first name")
first_name_label.grid(row=0, column = 0)
last_name_label = tkinter.Label(user_info_frame, text="Last Name")
last_name_label.grid(row=0, column = 1)


first_name_entry = tkinter.Entry(user_info_frame)
last_name_entry  = tkinter.Entry(user_info_frame)
first_name_entry.grid(row=1, column = 0)
last_name_entry.grid(row=1, column = 1)


title_label = tkinter.Label(user_info_frame, text="Title")
combo = ttk.combobox(window)(user_info_frame, values=["", "MR.", "MS.", "DR."])
combo.pack()
title_label.grid(row=0, column=2)
combo = ttk.combobox.grid(row=1, column=2)
combo.pack()

thanks for the help
gr Paul

deanhystad write May-13-2023, 07:04 PM:
Please post all code, output and errors (it it's entirety) between their respective tags. Refer to BBCode help topic on how to post. Use the "Preview Post" button to make sure the code is presented as you expect before hitting the "Post Reply/Thread" button.

[deanhystad]

Your program doesn't run because it contains errors. There is no ttk.combobox. In addition, the command to make the Combobox is incorrectly formatted, and you have an extra Combobox that looks like a copy/paste error. Finally, you cannot use grid and pack to place items in a frame. One or the other, but not both.

Once you fix those problems your window still won't appear because you need to call window.mainloop() to tell tkinter to start running.

Since you are just starting learning tkinter, might I suggest start out using classes. I would subclass the Tk window to make a class for may new window.

import tkinter as tk
from tkinter import ttk  


class Window(tk.Tk):
    """A window for entering user information."""
    def __init__(self):
        super().__init__()
        self.title("Data Entry Form")
    
        frame = tk.LabelFrame(self, text="User Information")
        frame.pack(padx=10, pady=10)

        tk.Label(frame, text="Title").grid(row=0, column=0)
        self.title = ttk.Combobox(
            frame, values=["", "MR.", "MS.", "DR."], width=4
        )
        self.title.grid(row=1, column=0, padx=5, pady=(0, 5))

        tk.Label(frame, text="First Name").grid(row=0, column=1)
        self.first_name = tk.Entry(frame, width=15)
        self.first_name.grid(row=1, column=1, pady=(0, 5))

        tk.Label(frame, text="Last Name").grid(row=0, column=2)
        self.last_name = tk.Entry(frame, width=20)
        self.last_name.grid(row=1, column=2, padx=5, pady=(0, 5))


Window().mainloop()

[paulie70]

Hello,

can someone tell me what i'm doing wrong the library qtconsole.qt import QtCore doesn't work already uninstalled everything and reinstalled but error remains
( import qtconsole.qt could not be resolved (pylance(reportmissingimports [ln 5, Col 6]

Thank you
gr Paul

import sys
from PyQt5.QtWidgets import QApplication, QListWidgetItem, QMainWindow
from PyQt5.uic import loadUi
from qtconsole.qt import QtCore


class Main(QMainWindow):
    def __init__(self):
        super(Main, self).__init__()
        loadUi("main.ui", self)
        todos = ["hond uitlate", "boodschappen doen","mailen", "bank gaan","huishouden"]
        for todo in todos:
            item = QListWidgetItem(todo)
            self.todo_listWidget.addItem(item)
            

if __name__== '__main__':
    app = QApplication(sys.argv)
    window = Main()
    window.show()
    app.exec_()

deanhystad write May-19-2023, 06:05 PM:
Please post all code, output and errors (it it's entirety) between their respective tags. Refer to BBCode help topic on how to post. Use the "Preview Post" button to make sure the code is presented as you expect before hitting the "Post Reply/Thread" button.

[deanhystad]

This is a new question. You should start a new thread.

What are you trying to do with qtconsole? There is no qtconsole.qt. I would be very surprised if there is a QtCore defined anywhere in qtconsole. QtCore is in PyQt5 along with QtWidget and QtGUI.

I used qtconsole in an application. I created a console window that I could open up to run interactive python.

from qtconsole.inprocess import QtInProcessKernelManager
from qtconsole.rich_jupyter_widget import RichJupyterWidget
from qtpy import QtWidgets
import asyncio


class Console(QtWidgets.QWidget):
    def __init__(self):
        super().__init__()

        # start an ipython kernel in this process and let it run with the Qt event loop
        self.kernel_manager = QtInProcessKernelManager()
        self.kernel_manager.start_kernel()
        self.kernel = self.kernel_manager.kernel
        self.kernel.shell.register_magic_function(self._back, "line", "BACK")
        self.kernel.shell.register_magic_function(self._where, "line", "WHERE")
        self.kernel.gui = "qt4"  # use qt4, but works with PySide6

        # there are issues if you enter quit() or exit() in the console
        # override these functions
        # self.kernel.shell.push({"quit": self._console_quit, "exit": self._console_quit})
        self.contexts = []

        self.kernel_client = self.kernel_manager.client()
        self.kernel_client.start_channels()

        self.control = RichJupyterWidget()
        self.control.kernel_manager = self.kernel_manager
        self.control.kernel_client = self.kernel_client

        box = QtWidgets.QVBoxLayout(self)
        box.addWidget(self.control)
        self.setWindowTitle("Console")

    def _with(self, object):
        """Set object as namespace"""
        # TBD Make this a magic function.  Need to figure out how
        # to evaluate "line" argument passed as argument when called.
        self.contexts.insert(0, object)
        return self._update_context()

    def _back(self, _):
        """Restore previous namespace"""
        if len(self.contexts) > 1:
            self.contexts.pop(0)
            return self._update_context()
        return None

    def _where(self, _):
        """Display context history from current to starting"""
        return self.contexts

    def _update_context(self):
        """Update shell to use current context"""
        if len(self.contexts) == 0:
            return None
        obj = self.contexts[0]
        if isinstance(obj, dict):
            context = obj.copy()
        else:
            context = obj.__dict__.copy()
        # TBD make WITH a magic function
        context.update({"self": obj, "WITH": self._with})
        self.kernel.shell.reset()
        self.kernel.shell.push(context)
        return obj

    def setcontext(self, context):
        """Set base context"""
        self.contexts = [context]
        self._update_context()

    def showEvent(self, event):
        """Execute when window is shown"""
        self._update_context()
        event.accept()

    def shutdown(self):
        """Shutdown the console and stop kernels."""
        self.kernel_client.stop_channels()
        self.kernel_manager.shutdown_kernel()


if __name__ == "__main__":
    import sys

    app = QtWidgets.QApplication(sys.argv)

    console = Console()
    console.setWindowTitle("In process IPython Kernel with qconsole")
    console.show()
    sys.exit(app.exec_())