Gns3-gui: bug : cannot import name 'WordCompleter'

[Raizo62]

Hi

Since Monday, i can't start a fresh install of GNS3 2.2

2018-06-05 16:47:42 ERROR local_server.py:487 Local server process has stopped
2018-06-05 16:47:42 ERROR local_server.py:489 Traceback (most recent call last):
File "/usr/bin/gns3server", line 11, in
load_entry_point('gns3-server==2.2.0.dev2', 'console_scripts', 'gns3server')()
File "/usr/local/lib/python3.5/dist-packages/gns3server/main.py", line 82, in main
from gns3server.run import run
File "/usr/local/lib/python3.5/dist-packages/gns3server/run.py", line 32, in
from gns3server.web.web_server import WebServer
File "/usr/local/lib/python3.5/dist-packages/gns3server/web/web_server.py", line 32, in
from .route import Route
File "/usr/local/lib/python3.5/dist-packages/gns3server/web/route.py", line 30, in
from ..compute.error import NodeError, ImageMissingError
File "/usr/local/lib/python3.5/dist-packages/gns3server/compute/__init__.py", line 24, in
from .dynamips import Dynamips
File "/usr/local/lib/python3.5/dist-packages/gns3server/compute/dynamips/__init__.py", line 45, in
from .dynamips_factory import DynamipsFactory
File "/usr/local/lib/python3.5/dist-packages/gns3server/compute/dynamips/dynamips_factory.py", line 28, in
from .nodes.ethernet_switch import EthernetSwitch
File "/usr/local/lib/python3.5/dist-packages/gns3server/compute/dynamips/nodes/ethernet_switch.py", line 25, in
from gns3server.utils.asyncio.embed_shell import EmbedShell, create_telnet_shell
File "/usr/local/lib/python3.5/dist-packages/gns3server/utils/asyncio/embed_shell.py", line 26, in
from prompt_toolkit.contrib.completers import WordCompleter
ImportError: cannot import name 'WordCompleter'

2018-06-05 16:48:07 CRITICAL progress_dialog.py:181 WaitForConnectionWorker thread stopping with an error: Could not connect to 127.0.0.1 on port 3080: [Errno 111] Connexion refusée
2018-06-05 16:48:08 CRITICAL __init__.py:183 Could not connect to 127.0.0.1 on port 3080: [Errno 111] Connexion refusée

prompt-toolkit-2.0.2 is installed.

Perhaps, it is mine, but i don't see why.

[n3oxmind]

@Raizo62 , I don't recommend using gns3 v2.2 yet, its a development branch and not released yet. the latest stable release is gns3 v2.1.6.

[grossmj]

@Raizo62 I've updated requirements.txt https://github.com/GNS3/gns3-server/commit/7f27cb70150a7163f636cbdede064550d72d289b, can you try again please?

[Raizo62]

@grossmj : it is good. thanks :-)

@n3oxmind : sometimes, we need functionalities in last dev version....and so, we test also this dev branch ;-)

[vincenod]

hello,

I have the same error.
I have install GNS3 2.1.6
and prompt_toolkit 2.0.3

Could you please help me?

File "/home/xxxxx/.local/bin/gns3server", line 11, in
load_entry_point('gns3-server==2.1.6', 'console_scripts', 'gns3server')()
File "/home/xxxxx/.local/lib/python3.6/site-packages/gns3server/main.py", line 82, in main
from gns3server.run import run
File "/home/xxxxxx/.local/lib/python3.6/site-packages/gns3server/run.py", line 32, in
from gns3server.web.web_server import WebServer
File "/home/xxxxx/.local/lib/python3.6/site-packages/gns3server/web/web_server.py", line 32, in
from .route import Route
File "/home/xxxxx/.local/lib/python3.6/site-packages/gns3server/web/route.py", line 30, in
from ..compute.error import NodeError, ImageMissingError
File "/home/xxxxx/.local/lib/python3.6/site-packages/gns3server/compute/__init__.py", line 24, in
from .dynamips import Dynamips
File "/home/xxxxx/.local/lib/python3.6/site-packages/gns3server/compute/dynamips/__init__.py", line 45, in
from .dynamips_factory import DynamipsFactory
File "/home/xxxxxx/.local/lib/python3.6/site-packages/gns3server/compute/dynamips/dynamips_factory.py", line 28, in
from .nodes.ethernet_switch import EthernetSwitch
File "/home/xxxxx/.local/lib/python3.6/site-packages/gns3server/compute/dynamips/nodes/ethernet_switch.py", line 25, in
from gns3server.utils.asyncio.embed_shell import EmbedShell, create_telnet_shell
File "/home/xxxxx/.local/lib/python3.6/site-packages/gns3server/utils/asyncio/embed_shell.py", line 26, in
from prompt_toolkit.contrib.completers import WordCompleter
ImportError: cannot import name 'WordCompleter'

[bplessis]

@vincenod : had the same issue, your prompt-toolkit is too new, as you can see in the previous reply gns3 2.2 require prompt-toolkit v 1.0.15 and it is the same for 2.1

pip3 install -U prompt-toolkit==1.0.15

did the trick for me.

[alexandrecorso]

Works for me too.

[zakywu]

now i am unsing
import asn1tools
and already install the old version of prompt-toolkit
pip3 install -U prompt-toolkit==1.0.15
but still faceing an issue:
from prompt_toolkit.completion import WordCompleter
Traceback (most recent call last):

File "", line 1, in
from prompt_toolkit.completion import WordCompleter

ImportError: cannot import name 'WordCompleter' from 'prompt_toolkit.completion' (D:\Program Files\Anaconda\lib\site-packages\prompt_toolkit\completion.py)

[zakywu]

i delete two lines and it works
file name:
*\asntools__init__.py
change to：

from prompt_toolkit.completion import WordCompleter

from prompt_toolkit import PromptSession