# Buggy code
def readOpenedLeoFile(self, c, fn, readAtFileNodesFlag, theFile):
    # New in Leo 4.10: The open1 event does not allow an override of the init logic.
    assert theFile
    # lm = self
    ok = c.fileCommands.openLeoFile(
        theFile, fn, readAtFileNodesFlag=readAtFileNodesFlag
    )
    # closes file.
    if ok:
        if not c.openDirectory:
            theDir = c.os_path_finalize(g.os_path_dirname(fn))
            c.openDirectory = c.frame.openDirectory = theDir
    else:
        g.app.closeLeoWindow(c.frame, finish_quit=self.more_cmdline_files is False)
    return ok


# Traceback (xml.etree.ElementTree.ParseError)
setting leoID from os.getenv('USER'): 'matt'
reading settings in /home/matt/miniconda3/envs/leo/lib/python3.6/site-packages/leo/config/leoSettings.leo
reading settings in /home/matt/.leo/myLeoSettings.leo
QApplication: invalid style override passed, ignoring it.

Leo 5.8 b1, build 20180815095610, Wed, Aug 15, 2018  9:56:10 AM
Not running from a git repo
Python 3.6.6, PyQt version 5.11.1
linux
** isPython3: True

reading settings in /home/matt/.leo/workbook.leo
loadOnePlugin: leo.plugins.livecode.init() returned False
reading settings in /home/matt/code/leo-editor/leo/dist/leoDist.leo
Traceback (most recent call last):

File "/home/matt/miniconda3/envs/leo/lib/python3.6/site-packages/leo/core/leoCommands.py", line 2072, in executeAnyCommand
return command(event)

File "/home/matt/miniconda3/envs/leo/lib/python3.6/site-packages/leo/core/leoGlobals.py", line 269, in commander_command_wrapper
method(event=event)

File "/home/matt/miniconda3/envs/leo/lib/python3.6/site-packages/leo/commands/commanderFileCommands.py", line 214, in open
c2 = g.openWithFileName(fileName, old_c=c)

File "/home/matt/miniconda3/envs/leo/lib/python3.6/site-packages/leo/core/leoGlobals.py", line 3682, in openWithFileName
return g.app.loadManager.loadLocalFile(fileName, gui, old_c)

File "/home/matt/miniconda3/envs/leo/lib/python3.6/site-packages/leo/core/leoApp.py", line 3059, in loadLocalFile
previousSettings = lm.getPreviousSettings(fn)

File "/home/matt/miniconda3/envs/leo/lib/python3.6/site-packages/leo/core/leoApp.py", line 1973, in getPreviousSettings
c = lm.openSettingsFile(fn)

File "/home/matt/miniconda3/envs/leo/lib/python3.6/site-packages/leo/core/leoApp.py", line 2139, in openSettingsFile
readAtFileNodesFlag=False, silent=True)

File "/home/matt/miniconda3/envs/leo/lib/python3.6/site-packages/leo/core/leoFileCommands.py", line 631, in openLeoFile
silent=silent,

File "/home/matt/miniconda3/envs/leo/lib/python3.6/site-packages/leo/core/leoFileCommands.py", line 494, in getLeoFile
v = FastRead(c, self.gnxDict).readFile(fileName)

File "/home/matt/miniconda3/envs/leo/lib/python3.6/site-packages/leo/core/leoFileCommands.py", line 68, in readFile
return self.readWithElementTree(s)

File "/home/matt/miniconda3/envs/leo/lib/python3.6/site-packages/leo/core/leoFileCommands.py", line 73, in readWithElementTree
xroot = ElementTree.fromstring(contents)

File "/home/matt/miniconda3/envs/leo/lib/python3.6/xml/etree/ElementTree.py", line 1314, in XML
parser.feed(text)

File "<string>", line None

xml.etree.ElementTree.ParseError: not well-formed (invalid token): line 189, column 1

# Fixed code
def readOpenedLeoFile(self, c, fn, readAtFileNodesFlag, theFile):
    # New in Leo 4.10: The open1 event does not allow an override of the init logic.
    assert theFile
    # lm = self
    ok = c.fileCommands.openLeoFile(
        theFile, fn, readAtFileNodesFlag=readAtFileNodesFlag
    )
    # closes file.
    if ok:
        if not c.openDirectory:
            theDir = c.os_path_finalize(g.os_path_dirname(fn))
            c.openDirectory = c.frame.openDirectory = theDir
    else:
        g.app.closeLeoWindow(c.frame, finish_quit=False)
        # #970: Never close Leo here.
    return ok