Exception on Load: jinja2.exceptions.UndefinedError: 'url_for_current' is undefined

[patbakdev]

Run
cd fava_investor
fava example.beancount

Exception
Exception on /baker/extension/Investor/ [GET]
Traceback (most recent call last):
File "/home/patrick/.local/pyenv/versions/Venti/lib/python3.9/site-packages/flask/app.py", line 2447, in wsgi_app
response = self.full_dispatch_request()
File "/home/patrick/.local/pyenv/versions/Venti/lib/python3.9/site-packages/flask/app.py", line 1952, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/home/patrick/.local/pyenv/versions/Venti/lib/python3.9/site-packages/flask/app.py", line 1821, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "/home/patrick/.local/pyenv/versions/Venti/lib/python3.9/site-packages/flask/_compat.py", line 39, in reraise
raise value
File "/home/patrick/.local/pyenv/versions/Venti/lib/python3.9/site-packages/flask/app.py", line 1950, in full_dispatch_request
rv = self.dispatch_request()
File "/home/patrick/.local/pyenv/versions/Venti/lib/python3.9/site-packages/flask/app.py", line 1936, in dispatch_request
return self.view_functionsrule.endpoint
File "/home/patrick/Sources/Venti/modules/fava/src/fava/application.py", line 352, in extension_report
content = render_template_string(template, extension=extension)
File "/home/patrick/.local/pyenv/versions/Venti/lib/python3.9/site-packages/flask/templating.py", line 155, in render_template_string
return _render(ctx.app.jinja_env.from_string(source), context, ctx.app)
File "/home/patrick/.local/pyenv/versions/Venti/lib/python3.9/site-packages/flask/templating.py", line 120, in _render
rv = template.render(context)
File "/home/patrick/.local/pyenv/versions/Venti/lib/python3.9/site-packages/jinja2/environment.py", line 1090, in render
self.environment.handle_exception()
File "/home/patrick/.local/pyenv/versions/Venti/lib/python3.9/site-packages/jinja2/environment.py", line 832, in handle_exception
reraise(*rewrite_traceback_stack(source=source))
File "/home/patrick/.local/pyenv/versions/Venti/lib/python3.9/site-packages/jinja2/_compat.py", line 28, in reraise
raise value.with_traceback(tb)
File "", line 10, in top-level template code
jinja2.exceptions.UndefinedError: 'url_for_current' is undefined

Requirements (Python 3.9.5)
argcomplete==1.12.3
argh==0.26.2
atomicwrites==1.4.0
attrs==21.2.0
Babel==2.9.1
beancount==2.3.4
beancount-import==1.3.3.post1.dev159
beancount-plugins-metadata-spray==0.0.1
beautifulsoup4==4.9.3
bottle==0.12.19
cachetools==4.2.2
certifi==2021.5.30
cffi==1.14.5
chardet==4.0.0
cheroot==8.5.2
click==7.1.2
cryptography==3.4.7
fava==1.20.dev17+ge987bb99
fava-investor==0.2.2.dev19+g0b9da55
Flask==1.1.4
Flask-Babel==1.0.0
google-api-core==1.30.0
google-api-python-client==2.8.0
google-auth==1.31.0
google-auth-httplib2==0.1.0
googleapis-common-protos==1.53.0
httplib2==0.19.1
idna==2.10
importlib-metadata==4.5.0
iniconfig==1.1.1
itsdangerous==1.1.0
jaraco.functools==3.3.0
jeepney==0.6.0
Jinja2==2.11.3
joblib==1.0.1
jsonschema==3.2.0
keyring==23.0.1
lxml==4.6.3
markdown2==2.4.0
MarkupSafe==2.0.1
more-itertools==8.8.0
nltk==3.6.2
numpy==1.20.3
ofxclient==2.0.4
ofxhome==0.3.3
ofxparse==0.21
packaging==20.9
pip==21.1.2
pluggy==0.13.1
ply==3.11
protobuf==3.17.3
py==1.10.0
pyasn1==0.4.8
pyasn1-modules==0.2.8
pycparser==2.20
pyparsing==2.4.7
pyrsistent==0.17.3
pytest==6.2.4
python-dateutil==2.8.1
python-magic==0.4.24
pytz==2021.1
regex==2021.4.4
requests==2.25.1
rsa==4.7.2
scikit-learn==0.24.2
scipy==1.6.3
SecretStorage==3.3.1
setuptools==56.0.0
simplejson==3.17.2
six==1.16.0
soupsieve==2.2.1
tabulate==0.8.9
threadpoolctl==2.1.0
toml==0.10.2
tornado==6.1
tqdm==4.61.0
uritemplate==3.0.1
urllib3==1.26.5
venti==0.0
watchdog==2.1.2
Werkzeug==1.0.1
zipp==3.4.1

[jonoharms]

I was having the same issue. I found that in application.py the url_for_current function was renamed and modified to url_for_source in commit 99e9900 of fava. See the diff here. beancount/fava@9e99001#diff-34e70ccbc25aaa9a79d126c4b4b93bc93948cb6dfe9bd5b5978d8a1ea4227205.

After reverting to fava 1.19, it works.

[patbakdev]

Thanks @jonoharms! That work-around works for me.

[aclindsa]

I found that in application.py the url_for_current function was renamed and modified to url_for_source in commit 99e9900 of fava.

I believe this is incorrect. As I posted here, url_for_source is a different function entirely and using it instead of url_for_current does not result in the correct behavior. This doesn't change the fact that for now reverting to 1.19 should resolve the issue, though.