ImportError: cannot import name 'unquote'

[ilmaruk]

Long story short

As of yarl 1.0.0 (available since one hour ago), yarl.unquote is no longer available, thus causing an import error at web_urldispatcher.py.

Expected behaviour

Been able to run: from aiohttp import web

Actual behaviour

from aiohttp import web raises the following error:

  File "web.py", line 1, in <module>
    from aiohttp import web
  File "/home/ruggero/Development/mqtt/.venv/lib/python3.6/site-packages/aiohttp/web.py", line 15, in <module>
    from . import (hdrs, web_exceptions, web_fileresponse, web_middlewares,
  File "/home/ruggero/Development/mqtt/.venv/lib/python3.6/site-packages/aiohttp/web_middlewares.py", line 5, in <module>
    from aiohttp.web_urldispatcher import SystemRoute
  File "/home/ruggero/Development/mqtt/.venv/lib/python3.6/site-packages/aiohttp/web_urldispatcher.py", line 21, in <module>
    from yarl import URL, unquote
ImportError: cannot import name 'unquote'

Steps to reproduce

Simply: from aiohttp import web

Your environment

aiohttp 2.3.7 (both)
Ubuntu Linux 16.04
Python 3.6.3

Workaround

Downgrade to yarl 0.18.0

[gcarq]

Same problem since yarl 1.0.0, downgrading to yarl==0.18.0 helps as workaround.

13:36:06   File "/var/jenkins/workspace/sometest-01-test/test/__init__.py", line 19, in <module>
13:36:06     from aiohttp import web
13:36:06   File "/var/jenkins/shiningpanda/jobs/bd59e0bb/virtualenvs/d41d8cd9/lib/python3.6/site-packages/aiohttp/web.py", line 15, in <module>
13:36:06     from . import (hdrs, web_exceptions, web_fileresponse, web_middlewares,
13:36:06   File "/var/jenkins/shiningpanda/jobs/bd59e0bb/virtualenvs/d41d8cd9/lib/python3.6/site-packages/aiohttp/web_middlewares.py", line 5, in <module>
13:36:06     from aiohttp.web_urldispatcher import SystemRoute
13:36:06   File "/var/jenkins/shiningpanda/jobs/bd59e0bb/virtualenvs/d41d8cd9/lib/python3.6/site-packages/aiohttp/web_urldispatcher.py", line 21, in <module>
13:36:06     from yarl import URL, unquote
13:36:06 ImportError: cannot import name 'unquote'

[panagiks]

Same here, opened a ticket to yarl.

[wojked]

Confirmed @ilmaruk , you were faster 👍

CHANGES
1.0.0 (2018-01-15)
Drop yarl.quote and yarl.unquote public functions (#155)

from: https://pypi.python.org/pypi/yarl

[foxx]

Can we get someone to pin yarl==0.18.0 in deps until the problem is sorted out?

[panagiks]

For reference, #2664

[pfreixes]

@asvetlov ^^

[0bsearch]

Just in case: I'm working on moving aiohttp internals towards public yarl interfaces.