Arch Linux User Repository

Upstream has split development of the major versions 2 and 3. This package will keep tracking the latest version. If you prefer version 2, there is now a separate package gns3-gui-2.

hello guys, so i had the same error as @almooj and this is how i solved it :

cd /tmp
git clone https://aur.archlinux.org/python-jsonschema26.git
cd python-jsonschema26 
makepkg -si --nocheck

I hope this will help

Thanks in advance.

I have the exact same error output as almooj. Edit: Not quite exact, instead of /tmp/yaourt... I have /home/user/.cache/yay/...

Hello Buzo and hello everyone, when I try to add the "python-jsonschema26" package I have the following error:

[ERROR]
Traceback (most recent call last):
  File "/usr/lib/python3.8/unittest/case.py", line 60, in testPartExecutor
    yield
  File "/usr/lib/python3.8/unittest/case.py", line 676, in run
    self._callTestMethod(testMethod)
  File "/usr/lib/python3.8/unittest/case.py", line 633, in _callTestMethod
    method()
  File "/tmp/yaourt-tmp-neo/aur-python-jsonschema26/src/jsonschema-2.6.0/build/lib/jsonschema/tests/test_jsonschema_test_suite.py", line 63, in test_case
    validate(data, schema, cls=self.validator_class, **kwargs)
  File "/tmp/yaourt-tmp-neo/aur-python-jsonschema26/src/jsonschema-2.6.0/build/lib/jsonschema/validators.py", line 541, in validate
    cls(schema, *args, **kwargs).validate(instance)
  File "/tmp/yaourt-tmp-neo/aur-python-jsonschema26/src/jsonschema-2.6.0/build/lib/jsonschema/validators.py", line 129, in validate
    for error in self.iter_errors(*args, **kwargs):
  File "/tmp/yaourt-tmp-neo/aur-python-jsonschema26/src/jsonschema-2.6.0/build/lib/jsonschema/validators.py", line 105, in iter_errors
    for error in errors:
  File "/tmp/yaourt-tmp-neo/aur-python-jsonschema26/src/jsonschema-2.6.0/build/lib/jsonschema/_validators.py", line 163, in format
    validator.format_checker.check(instance, format)
  File "/tmp/yaourt-tmp-neo/aur-python-jsonschema26/src/jsonschema-2.6.0/build/lib/jsonschema/_format.py", line 96, in check
    result = func(instance)
  File "/tmp/yaourt-tmp-neo/aur-python-jsonschema26/src/jsonschema-2.6.0/build/lib/jsonschema/_format.py", line 259, in is_css21_color
    instance.lower() in webcolors.css21_names_to_hex
builtins.AttributeError: module 'webcolors' has no attribute 'css21_names_to_hex'

jsonschema.tests.test_jsonschema_test_suite.TestDraft3.test_format_26_a_valid_CSS_color_name
jsonschema.tests.test_jsonschema_test_suite.TestDraft3.test_format_27_a_valid_six_digit_CSS_color_code
jsonschema.tests.test_jsonschema_test_suite.TestDraft3.test_format_28_a_valid_three_digit_CSS_color_code
===============================================================================
[ERROR]
Traceback (most recent call last):
  File "/usr/lib/python3.8/unittest/case.py", line 60, in testPartExecutor
    yield
  File "/usr/lib/python3.8/unittest/case.py", line 676, in run
    self._callTestMethod(testMethod)
  File "/usr/lib/python3.8/unittest/case.py", line 633, in _callTestMethod
    method()
  File "/tmp/yaourt-tmp-neo/aur-python-jsonschema26/src/jsonschema-2.6.0/build/lib/jsonschema/tests/test_jsonschema_test_suite.py", line 68, in test_case
    validate(data, schema, cls=self.validator_class, **kwargs)
  File "/tmp/yaourt-tmp-neo/aur-python-jsonschema26/src/jsonschema-2.6.0/build/lib/jsonschema/validators.py", line 541, in validate
    cls(schema, *args, **kwargs).validate(instance)
  File "/tmp/yaourt-tmp-neo/aur-python-jsonschema26/src/jsonschema-2.6.0/build/lib/jsonschema/validators.py", line 129, in validate
    for error in self.iter_errors(*args, **kwargs):
  File "/tmp/yaourt-tmp-neo/aur-python-jsonschema26/src/jsonschema-2.6.0/build/lib/jsonschema/validators.py", line 105, in iter_errors
    for error in errors:
  File "/tmp/yaourt-tmp-neo/aur-python-jsonschema26/src/jsonschema-2.6.0/build/lib/jsonschema/_validators.py", line 163, in format
    validator.format_checker.check(instance, format)
  File "/tmp/yaourt-tmp-neo/aur-python-jsonschema26/src/jsonschema-2.6.0/build/lib/jsonschema/_format.py", line 96, in check
    result = func(instance)
  File "/tmp/yaourt-tmp-neo/aur-python-jsonschema26/src/jsonschema-2.6.0/build/lib/jsonschema/_format.py", line 259, in is_css21_color
    instance.lower() in webcolors.css21_names_to_hex
builtins.AttributeError: module 'webcolors' has no attribute 'css21_names_to_hex'

jsonschema.tests.test_jsonschema_test_suite.TestDraft3.test_format_29_an_invalid_CSS_color_code
jsonschema.tests.test_jsonschema_test_suite.TestDraft3.test_format_30_an_invalid_CSS_color_name
jsonschema.tests.test_jsonschema_test_suite.TestDraft3.test_format_31_a_CSS_color_name_containing_invalid_characters
-------------------------------------------------------------------------------
Ran 739 tests in 0.652s

FAILED (skips=2, errors=6, successes=731)
==> ERRORE: Si è verificato un errore in check().
    L'operazione sta per essere interrotta...
==> ERRORE: Makepkg non è riuscito a compilare python-jsonschema26.
==> Riavviare la compilazione di python-jsonschema26 [s/N]

I tried to downgrade the python and to install the last version of python-jsonschema (3.2.0-2) but the situation has not changed. Can you help me please?

Thanks in advance.

@Archange Any updates with your packaging effort? Would be really great if GNS3 could move to community!

Yes, Python packages need a rebuild after Arch moved to Python 3.8 in October 2019. So rebuilding python-jsonschema26 should fix this indeed.

Hello buzo, I have exact same problem like phy0d0r and milenus. Same output as is bellow.

Although I see that I have installed 'jsonschema=2.6.0' (with single '=') and gns3-gui requires 'jsonschema==2.6.0' (with double '=').

EDIT: rebuilding python-jsonschema26 did fix it for me.

Hello buzo, I have exact same problem like phy0d0r. Same output as is bellow.

I’m in the work of packaging this to [community], if some people want to try the current, package it’s available at https://paste.xinu.at/m-xMBT/ (it removes the requirements on all -gns3 python deps and use latest ones instead, but I haven’t thoroughly tested it, so some things might break —please report if so).

Hi buzo, i already uninstall/reinstall but the problem is persists.

 ┌─ fyodor at 17:29  ın  {~}
 └─> ₹ » gns3
Traceback (most recent call last):
  File "/usr/bin/gns3", line 6, in <module>
    from pkg_resources import load_entry_point
  File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 3252, in <module>
    def _initialize_master_working_set():
  File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 3235, in _call_aside
    f(*args, **kwargs)
  File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 3264, in _initialize_master_working_set
    working_set = WorkingSet._build_master()
  File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 583, in _build_master
    ws.require(__requires__)
  File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 900, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/usr/lib/python3.8/site-packages/pkg_resources/__init__.py", line 786, in resolve
    raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'jsonschema==2.6.0' distribution was not found and is required by gns3-gui

 ┌─ fyodor at 17:29  ın  {~}
 └─> ₹ » yay -Ss jsonschema
aur/python-jsonschema26 2.6.0-1 (+1 0.03%) (Installed)
    An implementation of JSON Schema validation for Python