[PyQt] header view question when QFileSystemModel is displayed in a QTableView

[iMath]

when the contents of the QFileSystemModel is displayed in a QTableView , the alignment of the text in the first row header section is right-aligned ,while the others is left-aligned,I wonder why ?

how to make the alignment of the text in each header section to be left-aligned?


setDefaultSectionSize() seems doesn't work here


my code 


import sys   
from PyQt4.QtGui import *
from PyQt4.QtCore import *


if __name__ == '__main__':   


    app =QApplication(sys.argv)      
    ui =QMainWindow()   


    model= QFileSystemModel ()      
    model.setRootPath(QDir.currentPath())  


    model.sort(3)
        
    table = QTableView()
    #print(table.verticalHeader().defaultAlignment()) #
    table.verticalHeader().setDefaultAlignment(Qt.AlignRight)


    table.setModel(model);   
    table.setRootIndex(model.index(QDir.currentPath())) # 
    ui.setCentralWidget(table)
    ui.resize(800, 600)
    ui.show()      
    app.exec_()
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