ValueError: Invalid value of type 'builtins.str' received for the 'x' property of layout

[Ajinkz]

Traceback (most recent call last):
File "Mock_Portfolio_Dash.py", line 140, in
legend = {'x':'0.75', 'y':'1.2'}
File "D:\Anaconda3\envs\stats\lib\site-packages\plotly\graph_objs_init_.py"
, line 5342, in init
self['legend'] = legend if legend is not None else _v
File "D:\Anaconda3\envs\stats\lib\site-packages\plotly\basedatatypes.py", line
4225, in setitem
super(BaseLayoutHierarchyType, self).setitem(prop, value)
File "D:\Anaconda3\envs\stats\lib\site-packages\plotly\basedatatypes.py", line
3308, in setitem
self._set_compound_prop(prop, value)
File "D:\Anaconda3\envs\stats\lib\site-packages\plotly\basedatatypes.py", line
3621, in _set_compound_prop
val = validator.validate_coerce(val, skip_invalid=self.skip_invalid)
File "D:\Anaconda3\envs\stats\lib\site-packages_plotly_utils\basevalidators.p
y", line 2131, in validate_coerce
v = self.data_class(v, skip_invalid=skip_invalid)
File "D:\Anaconda3\envs\stats\lib\site-packages\plotly\graph_objs\layout_ini
t.py", line 16324, in init
self['x'] = x if x is not None else _v
File "D:\Anaconda3\envs\stats\lib\site-packages\plotly\basedatatypes.py", line
3317, in setitem
self._set_prop(prop, value)
File "D:\Anaconda3\envs\stats\lib\site-packages\plotly\basedatatypes.py", line
3562, in _set_prop
raise err
File "D:\Anaconda3\envs\stats\lib\site-packages\plotly\basedatatypes.py", line
3557, in _set_prop
val = validator.validate_coerce(val)
File "D:\Anaconda3\envs\stats\lib\site-packages_plotly_utils\basevalidators.p
y", line 737, in validate_coerce
self.raise_invalid_val(v)
File "D:\Anaconda3\envs\stats\lib\site-packages_plotly_utils\basevalidators.p
y", line 277, in raise_invalid_val
valid_clr_desc=self.description()))
ValueError:
Invalid value of type 'builtins.str' received for the 'x' property of layout
.legend
Received value: '0.75'

The 'x' property is a number and may be specified as:
  - An int or float in the interval [-2, 3]

[fe01134]

I hit the same thing in a medium blog tutorial. If you convert your json or python dictionaries input for fields from strings:
legend = {'x':'0.8', 'y':'1.2'}
to integers or floats:
legend = {'x':0.8, 'y':1.2}

it then works.