environment/lib/python2.7/site-packages/IPython/core/page.py
def page_file(fname, start=0, pager_cmd=None):
    """Page a file, using an optional pager command and starting line.
    """

    pager_cmd = get_pager_cmd(pager_cmd)
    pager_cmd += ' ' + get_pager_start(pager_cmd,start)

    try:
        if os.environ['TERM'] in ['emacs','dumb']:
            raise EnvironmentError
        system(pager_cmd + ' ' + fname)
    except:
        try:
            if start > 0:
                start -= 1
            page(open(fname).read(),start)
        except:
            print 'Unable to show file',`fname`
def page_file(fname, start=0, pager_cmd=None):
    pager_cmd = get_pager_cmd(pager_cmd)
    pager_cmd += ' ' + get_pager_start(pager_cmd,start)

    try:
        if os.environ['TERM'] in ['emacs','dumb']:
            raise EnvironmentError
        system(pager_cmd + ' ' + fname)
    except:
        try:
            if start > 0:
                start -= 1
            page(open(fname).read(),start)
        except:
            print 'Unable to show file',`fname`
def page_file ( fname , start = 0 , pager_cmd = None ) : pager_cmd = get_pager_cmd ( pager_cmd ) pager_cmd += ' ' + get_pager_start ( pager_cmd , start ) try : if os . environ [ 'TERM' ] in [ 'emacs' , 'dumb' ] : raise EnvironmentError system ( pager_cmd + ' ' + fname ) except : try : if start > 0 : start -= 1 page ( open ( fname ) . read ( ) , start ) except : print 'Unable to show file' , `fname`
Page a file, using an optional pager command and starting line.
Page a file using an optional pager command and starting line .