Re: Doubt

Okay first of all what you posted did not execute due to a few typos and 
such so I went and rendered it and added a few adjustments:

import argparse

from sys import exit   as sysExit
from pprint import pprint

from PyQt5.QtWidgets import QApplication, QWidget, QHBoxLayout, QVBoxLayout
from PyQt5.QtWidgets import QInputDialog, QLineEdit, QPushButton

# Okay because this Window is so simple there is no reason to
# sub-class it beyond this however if it were a QMainWindow the
# Center Widget would have been the main gui implementation and
# QMainWindow would have been the Controller Class or Main
# Application that coordinates all the elements between the Gui
# and any Data Sources it might have
class TutorialWindow(QWidget):
   # The Init had a typo
     def __init__(self):
QWidget.__init__(self)

       # Okay its a simple thing but every window ought to
       # have its own Title
self.setWindowTitle('Tutorial Window')
self.setGeometry(300, 300, 290, 140)

       # Using the coordinate system is not PyQt as it was
       # designed to use the Layout system as follows
self.btnOpen = QPushButton('Open')
self.btnOpen.clicked.connect(self.showDialog)

self.lneTextName = QLineEdit()
self.lneTextName.setPlaceholderText("Enter your name:")

       # This is an invisible horizontal box to put these 2
       # widgets on the same line and because we want the
       # Textbox to expand with the window we do not tack a
       # Stretch object to it
HBox = QHBoxLayout()
HBox.addWidget(self.btnOpen)
HBox.addWidget(self.lneTextName)

       # This is a vertical which is only needed because IOError
       # wanted to place the previous objects at the top of the
       # layout so I add the above horizontal box to the vertical
       # box and follow it with a Stretch object
VBox = QVBoxLayout()
VBox.addLayout(HBox)
VBox.addStretch(1)

       # We could do this cryptically by passing objects into
       # other objects but I find that doing it explicitly helps
       # to make things more clean and clear
self.setLayout(VBox)

   # This was improperly indented (to far) it is part of the class
   # but should not be contained within the Init function
     def showDialog(self):
text, result = QInputDialog.getText(self, 'Input Dialog', 'Enter your 
name:')
         if result == True:
self.lneTextName.setText(str(text))

# Just an Argparse example snippet
def GetCmdLineArgs():
     Parsr = argparse.ArgumentParser()
Parsr.add_argument('echo')
     ArgVals = Parsr.parse_args()

     return ArgVals

if __name__ == '__main__':
   # If you are going to do Command Line Arguments I would
   # strongly suggest you look into Argparse as it is the
   # recommended command-line standard Python parsing module
CmdLneArgs = GetCmdLineArgs()
pprint('Command Line Arguements = ' + CmdLneArgs.echo)

   # Using Argparse means QApplication will never import any
   # command line objects as such we supply an empty list instead
   # Further what QApplication returns is your Main Application
   # Event Thread as such I name it accordingly to reduce any
   # potential confusion about its true purpose
MainEvntThred = QApplication([])

   # While this is often the Main Gui it really is the PyQt
   # Main Application especially if you get into any more
   # complicated Gui/Application renderings and thus again
   # I name it accordingly to reduce confusion about its
   # true purpose
     MainApp = TutorialWindow()
MainApp.show()

sysExit(MainEvntThred.exec_())

On 10/12/2019 10:02 AM, tanya tanyaradzwa wrote:
> Hello everyone,
>
> Referring to the assignment question l asked for your assistance, 
> please find my code herein, and attached is the output on my side. 
> Thank you. Tanya
>
> import sys
> from pprint import pprint
> from PyQt5.QtWidgets import QWidget, QPushButton, QInputDialog, 
> QLineEdit, QApplication
>
> class TutorialWindow(QWidget):
>     def __init(self):
>         super().__init__()
>         self.btn = QPushButton('Open', self)
>         self.btn.move(0, 20)
>         self.btn.clicked.connect(self.showDialog)
>
>         self.text_name = QLineEdit(self)
>         self.text_name.move(100, 22)
>         self.text_name.setPlaceholderText("Enter your name:")
>
>         self.Geometry(300, 300, 290, 140)
>
>         def showDialog(self):
>             text, result = QInputDialog.getText(self, 'Input Dialog', 
> 'Enter your name:')
>             if result ==True:
>                 self.text_name.setText(str(text))
>
> if __name__ == '__main__':
>     app = QApplication(sys.argv)
>     pprint("input parameters  = " + str(sys.argv))
>     tutorial_window = TutorialWindow()
>     tutorial_window.show()
>     sys.exit(app.exec_())
>
>
> On Oct 4, 2019 14:33, "tanya tanyaradzwa" 
> <[email protected] <mailto:[email protected]>> 
> wrote:
>
>     Hi Florian,
>
>     Thank you for your response.
>
>     I will send to you my code and the output on my side.
>
>     On Oct 4, 2019 09:56, "Florian Bruhin" <[email protected]
>     <mailto:[email protected]>> wrote:
>
>         Hey Tanya,
>
>         On Fri, Oct 04, 2019 at 08:50:50AM +0200, tanya tanyaradzwa wrote:
>         > I am struggling with a school assignment. I have researched
>         all places
>         > online, but l am failing to bring it all together. Please
>         assist me.
>         >
>         > Question:
>         >
>         > Create an application using PyQt. The user is prompted for
>         the name of an
>         > animal rescue service. This must be displayed in the UI in
>         capital letters.
>         > The user is then required to enter a character (letter).
>         This must also be
>         > displayed on the UI in capital letters. The application
>         > must read the name of the animal rescue service as well as
>         the character
>         > and then count the number of occurrences of the character in
>         the animal
>         > rescue service name. The count must be displayed.
>         >
>         > Also required:
>         >
>         > Error message for incorrect input from user (e.g. no name of
>         animal rescue
>         > service).
>         > Error message of character not found or the character is blank!
>         >
>         > May you please assist. Thank you.
>
>         If you have some specific issues, people here would likely be
>         happy to help.
>         What do you have so far and where do you run into issues?
>
>         This pretty much boils down to "please do my homework for me",
>         which at least
>         I'm not going to do.
>
>         Florian
>
>         -- 
>         https://www.qutebrowser.org | [email protected]
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>
>
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