KeyError: 'kivy.garden.graph' while importing graph flower

[Andrea Merello]

Hello,

I'm failing importing the 'graph' flower, even in a minimal example; as soon as I try to do

from kivy.garden.graph import Graph

I got this error:

Traceback (most recent call last):
   File "main.py", line 20, in <module>
     from kivy.garden.graph import Graph, MeshLinePlot
   File "<frozen importlib._bootstrap>", line 971, in _find_and_load
   File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
   File "<frozen importlib._bootstrap>", line 656, in _load_unlocked
   File "<frozen importlib._bootstrap>", line 628, in _load_backward_compatible
 KeyError: 'kivy.garden.graph'

I run Ubuntu 18.04.4 and I use python3 and virtualenv. This happens with both graph pip-installed version and latest from github

Steps to reproduce:

virtualenv foo -p /usr/bin/python3

source foo/bin/activate

pip install kivy

pip install kivy_garden.graph

echo "from kivy.garden import Graph" > foo.py

python3 foo.py

Complete output:
[INFO   ] [Logger      ] Record log in /home/andrea/.kivy/logs/kivy_20-03-20_51.txt
[INFO   ] [Kivy        ] v1.11.1
[INFO   ] [Kivy        ] Installed at "/home/andrea/tmp/foo/lib/python3.6/site-packages/kivy/__init__.py"
[INFO   ] [Python      ] v3.6.9 (default, Nov  7 2019, 10:44:02)
[GCC 8.3.0]
[INFO   ] [Python      ] Interpreter at "/home/andrea/tmp/foo/bin/python3"
 Traceback (most recent call last):
   File "foo.py", line 1, in <module>
     from kivy.garden import Graph
   File "<frozen importlib._bootstrap>", line 971, in _find_and_load
   File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
   File "<frozen importlib._bootstrap>", line 656, in _load_unlocked
   File "<frozen importlib._bootstrap>", line 628, in _load_backward_compatible
 KeyError: 'kivy.garden.Graph'

Thanks for any help,

Andrea

[Robert Flatt]

pip3 ?

[Andrea Merello]

It doesn't make any difference; I get the same outcome..

Andrea

[Andrea Merello]

It turned out that the instruction from the graph flower page are outdated, and that the correct syntax to import flowers has changed.

The solution is to do:

from kivy_garden.graph import Graph