Margins PySide5

aqui.py

from PyQt5.QtWidgets import *
from PyQt5.QtCore import Qt
import sys


'''
=============================================================================================================
Cada classe herdando QWidget equivale a uma tela disponível para exibir. 
'''
# Classe para capturar o caminho dos arquivos e apontar onse será salvo. 
class WidgetConvert(QWidget):
    def __init__(self):
        super().__init__()

        layout = QVBoxLayout()
        layout.setContentsMargins(0, 0, 0, 0)

        self.frm_converter = QFrame(self)
        self.frm_converter.setGeometry(150, 0, 830, 700)
        self.frm_converter.setStyleSheet('background-color: rgb(255, 255, 255)')
        #self.frm_converter.setVisible(True)

        
        
        self.txt_caminho = QLineEdit(self.frm_converter)
        self.txt_caminho.setPlaceholderText("Escolha o diretório do PLANO DE CONTAS clicando no botão ao lado ===>>")
        self.txt_caminho.setGeometry(20, 10, 560, 22)  
             

        self.btn_localizar = QPushButton('Plano de Contas', self.frm_converter)
        self.btn_localizar.setGeometry(590, 10, 130, 22)
        self.btn_localizar.setStyleSheet('background-color:rgb(7, 105, 114); color:white') 
        self.btn_localizar.clicked.connect(self.file_dir_pcontas)


        self.txt_movimento = QLineEdit(self.frm_converter)
        self.txt_movimento.setPlaceholderText("Escolha o diretório do MOVIMENTO clicando no botão ao lado ===>>")
        self.txt_movimento.setGeometry(20, 50, 560, 22)

        self.btn_movimento = QPushButton('Movimento', self.frm_converter)
        self.btn_movimento.setGeometry(590, 50, 130, 22)
        self.btn_movimento.setStyleSheet('background-color:rgb(7, 105, 114); color:white') 
        self.btn_movimento.clicked.connect(self.file_dir_movimento)
        
        layout.addWidget(self.frm_converter)
        self.setLayout(layout)
        

    def file_dir_pcontas(self):

        filedir = easygui.fileopenbox(msg='Mensagem', 
                                    title='Título', 
                                    default='ARQUIVO.csv', 
                                    filetypes = ["*.csv"  ],)

        self.txt_caminho.setText(filedir)                                               
        print(filedir)

#    def file_dir_pcontas(self):
#
#        filedir = easygui.filesavebox(msg='Mensagem', 
#                                    title='Título', 
#                                    default='ARQUIVO.csv', 
#                                    filetypes = ["*.css", ["*.htm", "*.html", "HTML files"], "*.csv"  ],)
#
#        self.txt_caminho.setText(filedir)                                               
#        print(filedir)

    def file_dir_movimento(self):

        filedir = easygui.fileopenbox(msg='Mensagem', 
                                    title='Título', 
                                    default='ARQUIVO.csv', 
                                    filetypes = ["*.csv"  ],)

        self.txt_movimento.setText(filedir)                                               
        print(filedir)          

class WidgetLineEdits(QWidget):
    def __init__(self):
        super().__init__()

        #layout = QVBoxLayout()
        #
        #for i in range(4):
        #    layout.addWidget(QLineEdit(f'LineEdit #{i}'))
        #
        #self.setLayout(layout)

        layout = QVBoxLayout()
        layout.setContentsMargins(0, 0, 0, 0)

        self.frm_converter = QFrame(self)
        self.frm_converter.setGeometry(150, 0, 830, 700)
        self.frm_converter.setStyleSheet('background-color: purple')
        #self.frm_converter.setVisible(True)
        
        layout.addWidget(self.frm_converter)
        self.setLayout(layout)
        
       

class WidgetRadioButtons(QWidget):
    def __init__(self):
        super().__init__()

        #layout = QVBoxLayout()
        #
        #for i in range(4):
        #    layout.addWidget(QRadioButton(f'RaidoButton #{i}'))
        #
        #self.setLayout(layout)

        layout = QVBoxLayout()
        layout.setContentsMargins(0, 0, 0, 0)

        self.frm_converter = QFrame(self)
        self.frm_converter.setGeometry(150, 0, 830, 700)
        self.frm_converter.setStyleSheet('background-color: gray')
        #self.frm_converter.setVisible(True)
        
        layout.addWidget(self.frm_converter)
        self.setLayout(layout)    

class WidgetFrame(QWidget):
    def __init__(self):
        super().__init__()

        #layout = QVBoxLayout()
        #
        #for i in range(4):
        #    layout.addWidget(QRadioButton(f'RaidoButton #{i}'))
        #
        #self.setLayout(layout)
        
        layout = QVBoxLayout()
        layout.setContentsMargins(0, 0, 0, 0)

        self.frm_converter = QFrame(self)
        self.frm_converter.setGeometry(150, 0, 830, 700)
        self.frm_converter.setStyleSheet('background-color: red')
        #self.frm_converter.setVisible(True)
        
        layout.addWidget(self.frm_converter)
        self.setLayout(layout)              

'''
Classe principal
'''        
class Window(QMainWindow):
    def __init__(self):
        super().__init__()

        # set the title of main window
        self.setWindowTitle('Conversor.')

        # set the size of window
        #self.Width = 800
        #self.height = int(0.618 * self.Width)
        #self.resize(self.Width, self.height)

        self.setGeometry(300, 100, 920, 600) # x, y, w, h -> esquerda, topo, largura, altura
        self.setStyleSheet('background-color: rgb(0, 0, 0)') # Cor do App (Preto), anterior (7, 104, 114)    

        css_button = '''     
        QPushButton:hover {
	        background-color: rgb(35, 170, 255);
        }
        QPushButton {
            color: rgb(255, 255, 255);
            background-color: rgb(35, 35, 35);
            border: 0px solid;
            height: 41px;
            width: 100
        }
        '''


        # add all widgets (Criam os botões laterais)
        self.btn_1 = QPushButton('Importar', self)
        self.btn_2 = QPushButton('Menu 2', self)
        self.btn_3 = QPushButton('Menu 3', self)
        self.btn_4 = QPushButton('Menu 4', self)

        self.btn_1.setStyleSheet(css_button)
        self.btn_2.setStyleSheet(css_button)
        self.btn_3.setStyleSheet(css_button)
        self.btn_4.setStyleSheet(css_button)
        

        # Chama a função que carrega a tela
        self.btn_1.clicked.connect(self.button1)
        self.btn_2.clicked.connect(self.button2)
        self.btn_3.clicked.connect(self.button3)
        self.btn_4.clicked.connect(self.button4)

        self.initUI()

    def initUI(self):

        '''Layout que recebe os botões'''
        left_layout = QVBoxLayout()
        left_layout.setContentsMargins(0, 0, 0, 0)
        left_layout.setAlignment(Qt.AlignTop)
        left_layout.addWidget(self.btn_1)
        left_layout.addWidget(self.btn_2)
        left_layout.addWidget(self.btn_3)
        left_layout.addWidget(self.btn_4)
        left_layout.setSpacing(1)

        '''Layout que contem o left_layout'''
        left_widget = QWidget()        
        left_widget.setLayout(left_layout)
        left_widget.setStyleSheet('background-color: yellow')

        left_widget.setFixedWidth(90)

        #largura = left_widget.height()
        #altura = left_widget.width()
        #print('largura {},  altura {}'.format(altura, largura))

        """
        Preenche o lado direito com os Widgets
        """
        self.right_widget = QStackedWidget()
        #self.right_widget.setStyleSheet('background-color: blue')
        self.right_widget.addWidget(WidgetConvert()) # index 0
        self.right_widget.addWidget(WidgetLineEdits()) # index 1
        self.right_widget.addWidget(WidgetRadioButtons()) # index 2
        self.right_widget.addWidget(WidgetFrame()) # index 3
        """
        Define o Widget que abre primeiro.
        """
        self.right_widget.setCurrentIndex(0)
    
        '''Crio o Layout principal'''
        main_layout = QHBoxLayout()
        main_layout.setContentsMargins(0, 0, 0, 0)
        main_layout.addWidget(left_widget)
        main_layout.addWidget(self.right_widget)
        main_layout.setSpacing(0)
        
        '''Crio o Wdget principal'''
        main_widget = QWidget()
        main_widget.setLayout(main_layout)
        self.setCentralWidget(main_widget)
        
        '''Garante a aplicação sempre no centro da tela.'''
        qr = self.frameGeometry()
        cp = QDesktopWidget().availableGeometry().center()
        qr.moveCenter(cp)
        self.move(qr.topLeft())

    # ----------------- 
    # buttons

    def button1(self):
        self.right_widget.setCurrentIndex(0)
        print('Pressionou 1')

    def button2(self):
        self.right_widget.setCurrentIndex(1)
        print('Pressionou 2')

    def button3(self):
        self.right_widget.setCurrentIndex(2)
        print('Pressionou 3')

    def button4(self):
        self.right_widget.setCurrentIndex(3)
        print('Pressionou 4')


if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = Window()
    ex.show()
    sys.exit(app.exec_())


# main_widget
#        |
#        |__==> main_layout
#                   |
#                   |__==> left_widget
#                   |           |
#                   |           |__==> Botões lateral esquerda
#                   |
#                   |__==> self.right_widget
#                               |
#                               |__==> Frames