IndexError: list index out of range

[accuratefeed]

I saw #24 and I thought this issue was fixed. I'm getting the following error:

`PS C:\Users\AccurateFeed\downloads> slack-export-viewer --archive ldrs.zip
ldrs.zip extracting to C:\Users\AccurateFeed\AppData\Local\Temp\2_slackviewer\5e226d974f1b15de666dab44c8ea52f329d39587...
ldrs.zip extracted to C:\Users\AccurateFeed\AppData\Local\Temp\2_slackviewer\5e226d974f1b15de666dab44c8ea52f329d39587.

• Serving Flask app "slackviewer.app" (lazy loading)
• Environment: production
  WARNING: Do not use the development server in a production environment.
  Use a production WSGI server instead.
• Debug mode: off
• Running on http://localhost:5000/ (Press CTRL+C to quit)
  127.0.0.1 - - [02/May/2018 09:10:57] "GET / HTTP/1.1" 500 -
  Error on request:
  Traceback (most recent call last):
  File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\werkzeug\serving.py", line 270, in run_wsgi
  execute(self.server.app)
  File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\werkzeug\serving.py", line 258, in execute
  application_iter = app(environ, start_response)
  File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\flask\app.py", line 2309, in call return self.wsgi_app(environ, start_response)
  File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\flask\app.py", line 2295, in wsgi_app response = self.handle_exception(e)
  File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\flask\app.py", line 1741, in handle_exception
  reraise(exc_type, exc_value, tb)
  File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\flask_compat.py", line 35, in reraise
  raise value
  File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\flask\app.py", line 2292, in wsgi_app response = self.full_dispatch_request()
  File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\flask\app.py", line 1815, in full_dispatch_request
  rv = self.handle_user_exception(e)
  File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\flask\app.py", line 1718, in handle_user_exception
  reraise(exc_type, exc_value, tb)
  File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\flask_compat.py", line 35, in reraise
  raise value
  File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\flask\app.py", line 1813, in full_dispatch_request
  rv = self.dispatch_request()
  File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\flask\app.py", line 1799, in dispatch_request
  return self.view_functionsrule.endpoint
  File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\slackviewer\app.py", line 81, in index
  return channel_name(channels[0])
  IndexError: list index out of range`

[tscritch]

Hey @accuratefeed can you add your channels.json file or a snippet of it. The only reason I can see this happening is because there are no channels at all. But if that's not the case I can test with your data.
Thanks!

[accuratefeed]

Hi @tscritch thanks for replying so quickly. The channels.json file is indeed empty. I contacted slack about this and they're not sure why it's empty either. I do have the folder of the channel I'm trying to view though and the other json files such as users.json has data in it. I'm really just trying to put this 1 channel in a viewable format, so if you have any other suggestions, please let me know!

[tscritch]

Wow. Interesting! haha
Well the list of channels is created from that channels.json so we need it... I would suggest for now just manually creating the file. Go to the tests folder in this project and open the zip to find the channels.json and just copy one from there. I'm not sure what else you could do if you don't have data in that file.

[accuratefeed]

@tscritch I was able to find a channels.json with data in it. Now I'm getting the following error:

PS C:\Users\AccurateFeed\downloads> slack-export-viewer --archive ldrs.zip ldrs.zip extracting to C:\Users\AccurateFeed\AppData\Local\Temp\2\_slackviewer\25cc1dfe34b348f9bc8e83888e92fcff8f708853... ldrs.zip extracted to C:\Users\AccurateFeed\AppData\Local\Temp\2\_slackviewer\25cc1dfe34b348f9bc8e83888e92fcff8f708853. Traceback (most recent call last): File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\runpy.py", line 193, in _run_module_as_main "__main__", mod_spec) File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\runpy.py", line 85, in _run_code exec(code, run_globals) File "C:\Users\AccurateFeed\AppData\Local\Programs\Python\Python36-32\Scripts\slack-export-viewer.exe\__main__.py", line 9, in <module> File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\click\core.py", line 722, in __call__ return self.main(*args, **kwargs) File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\click\core.py", line 697, in main rv = self.invoke(ctx) File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\click\core.py", line 895, in invoke return ctx.invoke(self.callback, **ctx.params) File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\click\core.py", line 535, in invoke return callback(*args, **kwargs) File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\slackviewer\main.py", line 76, in main configure_app(app, archive, debug) File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\slackviewer\main.py", line 41, in configure_app groups = compile_groups(path, user_data, group_data) File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\site-packages\slackviewer\archive.py", line 67, in compile_groups day_messages = json.load(f) File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\json\__init__.py", line 296, in load return loads(fp.read(), File "c:\users\AccurateFeed\appdata\local\programs\python\python36-32\lib\encodings\cp1252.py", line 23, in decode return codecs.charmap_decode(input,self.errors,decoding_table)[0] UnicodeDecodeError: 'charmap' codec can't decode byte 0x8f in position 428: character maps to <undefined>

[tscritch]

Ah jeez haha it looks like that would be a character it can't read for some reason... I'm not too experienced with that stuff. @hfaran any insight?

[accuratefeed]

I was able to get what I needed using levelsio's script, which I believe this script was based off of. Any idea if hfaran's script is using utf8 or latin1 to decode? Just curious.

[tscritch]

Ok great.
It is using utf8 👍

[hfaran]

@tscritch Looking at the stack trace that @accuratefeed posted, the bug is here:

slack-export-viewer/slackviewer/reader.py

Lines 145 to 147 in 5d9608d

	with io.open(os.path.join(self._PATH, day)) as f:
	# loads all messages
	day_messages = json.load(f)

You're missing the encoding="utf8" argument on io.open

[hfaran]

Committed the fix, but I'm gonna wait until your next PR goes to make a new release

[hfaran]

Actually, I went ahead and released 0.6.0. @accuratefeed please try it