set script editor font for maya

script_editor_font.py

# You can put this inside your userSetup.py
# import maya.utils as mu
# import script_editor_font as SE
# mu.executeDeferred(SE.launchFromCmdWndIcon)


from PyQt4 import QtGui, QtCore
from maya import cmds, mel
import maya.OpenMayaUI as apiUI
import sip


def launchFromCmdWndIcon():
    '''launch from maya command line script editor icon.'''
    def cmdWnd(arg=None):
        cmds.ScriptEditor()
        set_script_editor_font()

    # get command line formLayout
    gCommandLineForm = mel.eval('$tempVar = $gCommandLineForm')
    commandLineForm = cmds.formLayout(gCommandLineForm, q=1, ca=1)[0]
    # get cmdWndIcon button
    cmdWndIcon = cmds.formLayout(commandLineForm, q=1, ca=1)[-1]
    # change the command of the button
    cmds.symbolButton(cmdWndIcon, e=1, c=cmdWnd)

    # change the main manu item command
    menuName = 'wmScriptEditor'
    if cmds.menuItem(menuName, q=1, ex=1):
        cmds.menuItem(menuName, e=1, c=cmdWnd)


def getMayaWindowWidget():
    'another of finding main maya window'
    ptr = apiUI.MQtUtil.mainWindow()
    mwin = sip.wrapinstance(long(ptr), QtCore.QObject)
    return mwin


def set_script_editor_font():
    'set stylesheet on all qtextedit inside script editor window'
    # find script editor qwidget
    ptr = apiUI.MQtUtil.findControl('scriptEditorPanel1Window')
    win = sip.wrapinstance(long(ptr), QtCore.QObject)

    # add a custom property to it
    win.setProperty('maya_ui', 'scriptEditor')

    # apply stylesheet to any qtextedit inside script editor qwidget
    # you can use any cool fonts here
    styleSheet = '''
    QWidget[maya_ui="scriptEditor"] QTextEdit {
      font-family: "Courier New";
      font: normal %spx;
    }
    ''' % '16'

    app = QtGui.QApplication.instance()
    app.setStyleSheet(styleSheet)