first_row = QtGui.QHBoxLayout()

setings_search = QtGui.QVBoxLayout()
search_label = QtGui.QLabel()
search_pixmap = QtGui.QPixmap()
search_pixmap.load('search.png')

#search_pixmap.scaledToWidth(130)
#search_pixmap.scaledToHeight(130)

search_label.setPixmap(search_pixmap)

setings_search.addWidget(search_label)
first_row.addLayout(setings_search)

from PyQt4 import QtGui

app = QtGui.QApplication([])

label = QtGui.QLabel()

pixmap = QtGui.QPixmap()
pixmap.load('test.png')
pixmap = pixmap.scaledToWidth(20)
label.setPixmap(pixmap)

label.show()

app.exec_()

def paintEvent(self, event):
    qp = QtGui.QPainter()
    search_pixmap = QtGui.QPixmap('search.png')
    qp.drawPixmap(posX, posY, width, height, pixmap.scaled(width, height, transformMode=QtCore.Qt.SmoothTransformation))