Hello,

Until recently I had the stable version of mediagoblin running on a server with Debian 9 (for the community network project NuestraRed.org). By decision of another network administrator the operating system was upgraded to debian 10, due to this the installation we had of MediaGoblin stopped working. I have been trying to install from scratch a new installation to migrate the data and even update the version I had installed to Python3.7 but I always have the following error after the compilation and installation of all packages are done well:

(mediagoblin)mediagoblin@nosredserver:/home/nosred/media.nuestrared.org/mediagoblin$ ./bin/gmg Traceback (most recent call last):

File "./bin/gmg", line 11, in <module>

load_entry_point('mediagoblin', 'console_scripts', 'gmg')()

File "/home/nosred/media.nuestrared.org/mediagoblin/lib/python3.7/site-packages/mediagoblin/gmg_commands/init.py", line 111, in main_cli

setup_func = import_component(command_structsetup)

File "/home/nosred/media.nuestrared.org/mediagoblin/lib/python3.7/site-packages/mediagoblin/tools/common.py", line 34, in import_component

import(module_name)

File "/home/nosred/media.nuestrared.org/mediagoblin/lib/python3.7/site-packages/mediagoblin/gmg_commands/reprocess.py", line 25, in <module>

from mediagoblin.submit.lib import run_process_media

File "/home/nosred/media.nuestrared.org/mediagoblin/lib/python3.7/site-packages/mediagoblin/submit/lib.py", line 32, in <module>

from mediagoblin.processing.task import ProcessMedia

File "/home/nosred/media.nuestrared.org/mediagoblin/lib/python3.7/site-packages/mediagoblin/processing/task.py", line 176, in <module>

tasks.register(ProcessMedia)

File "/home/nosred/media.nuestrared.org/mediagoblin/lib/python3.7/site-packages/celery/app/registry.py", line 32, in register

type(task).name))

celery.exceptions.InvalidTaskError: Task class 'type' must specify .name attribute

Tested this on e34916.

In previous versions, I used MediaGoblin's fastcgi support to connect nginx to MediaGoblin. In the current Python3 build, fastcgi causes a failure:

$ docker build -t mediagoblin-python3 -f Dockerfile-python3 . && \
  docker run --entrypoint "./lazyserver.sh" mediagoblin-python3 --server-name=fcgi fcgi_host=127.0.0.1 fcgi_port=26543

+ export CELERY_ALWAYS_EAGER=true
+ ./bin/paster serve paste.ini --server-name=fcgi fcgi_host=127.0.0.1 fcgi_port=26543 --reload
Using paster config: paste.ini
Using ./bin/paster
Traceback (most recent call last):
  File "./bin/paster", line 11, in <module>
    load_entry_point('PasteScript', 'console_scripts', 'paster')()
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteScript-2.0.2-py3.7.egg/paste/script/command.py", line 102, in run
    invoke(command, command_name, options, args[1:])
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteScript-2.0.2-py3.7.egg/paste/script/command.py", line 141, in invoke
    exit_code = runner.run(args)
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteScript-2.0.2-py3.7.egg/paste/script/command.py", line 236, in run
    result = self.command()
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteScript-2.0.2-py3.7.egg/paste/script/serve.py", line 282, in command
    relative_to=base, global_conf=vars)
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteScript-2.0.2-py3.7.egg/paste/script/serve.py", line 324, in loadserver
    relative_to=relative_to, **kw)
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteDeploy-2.0.1-py3.7.egg/paste/deploy/loadwsgi.py", line 261, in loadserver
    return loadobj(SERVER, uri, name=name, **kw)
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteDeploy-2.0.1-py3.7.egg/paste/deploy/loadwsgi.py", line 277, in loadobj
    global_conf=global_conf)
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteDeploy-2.0.1-py3.7.egg/paste/deploy/loadwsgi.py", line 302, in loadcontext
    global_conf=global_conf)
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteDeploy-2.0.1-py3.7.egg/paste/deploy/loadwsgi.py", line 326, in _loadconfig
    return loader.get_context(object_type, name, global_conf)
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteDeploy-2.0.1-py3.7.egg/paste/deploy/loadwsgi.py", line 459, in get_context
    section)
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteDeploy-2.0.1-py3.7.egg/paste/deploy/loadwsgi.py", line 481, in _context_from_use
    object_type, name=use, global_conf=global_conf)
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteDeploy-2.0.1-py3.7.egg/paste/deploy/loadwsgi.py", line 412, in get_context
    global_conf=global_conf)
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteDeploy-2.0.1-py3.7.egg/paste/deploy/loadwsgi.py", line 302, in loadcontext
    global_conf=global_conf)
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteDeploy-2.0.1-py3.7.egg/paste/deploy/loadwsgi.py", line 334, in _loadegg
    return loader.get_context(object_type, name, global_conf)
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteDeploy-2.0.1-py3.7.egg/paste/deploy/loadwsgi.py", line 625, in get_context
    object_type, name=name)
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteDeploy-2.0.1-py3.7.egg/paste/deploy/loadwsgi.py", line 645, in find_egg_entry_point
    pkg_resources.require(self.spec)
  File "/opt/mediagoblin/lib/python3.7/site-packages/pkg_resources/__init__.py", line 900, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/opt/mediagoblin/lib/python3.7/site-packages/pkg_resources/__init__.py", line 786, in resolve
    raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'flup' distribution was not found and is required by the application

If I add ./bin/pip install flup to Dockerfile-python3, I still get the following failure:

Starting server in PID 11.
Traceback (most recent call last):
  File "./bin/paster", line 11, in <module>
    load_entry_point('PasteScript', 'console_scripts', 'paster')()
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteScript-2.0.2-py3.7.egg/paste/script/command.py", line 102, in run
    invoke(command, command_name, options, args[1:])
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteScript-2.0.2-py3.7.egg/paste/script/command.py", line 141, in invoke
    exit_code = runner.run(args)
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteScript-2.0.2-py3.7.egg/paste/script/command.py", line 236, in run
    result = self.command()
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteScript-2.0.2-py3.7.egg/paste/script/serve.py", line 319, in command
    serve()
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteScript-2.0.2-py3.7.egg/paste/script/serve.py", line 303, in serve
    server(app)
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteDeploy-2.0.1-py3.7.egg/paste/deploy/loadwsgi.py", line 195, in server_wrapper
    **context.local_conf)
  File "/opt/mediagoblin/lib/python3.7/site-packages/PasteDeploy-2.0.1-py3.7.egg/paste/deploy/util.py", line 55, in fix_call
    val = callable(*args, **kw)
  File "/opt/mediagoblin/lib/python3.7/site-packages/flup/server/paste_factory.py", line 138, in run_fcgi_fork
    debug = asbool(debug)
  File "/opt/mediagoblin/lib/python3.7/site-packages/flup/server/paste_factory.py", line 7, in asbool
    if isinstance(obj, (str, unicode)):
NameError: name 'unicode' is not defined

This patch fixes a typo in the docker-compose.yml file and simplifies the manual commands:

​https://github.com/mtlynch/mediagoblin/commit/6439cbe43d230cd19cd752894269ffefcc26e04f