plotly.graph_objs - Scatter mode error

[sambanerjee]

Hi:

I'm working on a project (I'm new to Python) and am stuck at a method - any help will be greatly appreciated.
This is the portion that is error-ing out

monthly_close = resample_prices(close)
project_helper.plot_resampled_prices(
    monthly_close.loc[:, apple_ticker],
    close.loc[:, apple_ticker],
    '{} Stock - Close Vs Monthly Close'.format(apple_ticker))

Error:
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
 in 
      3     monthly_close.loc[:, apple_ticker],
      4     close.loc[:, apple_ticker],
----> 5     '{} Stock - Close Vs Monthly Close'.format(apple_ticker))

f:\hidden\project_helper.py in plot_resampled_prices(df_resampled, df, title)
     68     traces = _generate_traces([     
     69                 ('Monthly Close', df_resampled, helper.color_scheme['major_line']),
---> 70                 ('Close', df, helper.color_scheme['minor_line'])])
     71     offline_py.iplot({'data': traces, 'layout': layout}, config=config)
     72 

f:\hidden\project_helper.py in _generate_traces(name_df_color_data)
     22             y=df,
     23             mode='line',
---> 24             line={'color': color}))
     25     return traces
     26 
f:\hidden\Python\lib\site-packages\plotly\graph_objs\__init__.py in __init__(self, arg, cliponaxis, connectgaps, customdata, customdatasrc, dx, dy, error_x, error_y, fill, fillcolor, groupnorm, hoverinfo, hoverinfosrc, hoverlabel, hoveron, hovertemplate, hovertemplatesrc, hovertext, hovertextsrc, ids, idssrc, legendgroup, line, marker, meta, metasrc, mode, name, opacity, orientation, r, rsrc, selected, selectedpoints, showlegend, stackgaps, stackgroup, stream, t, text, textfont, textposition, textpositionsrc, textsrc, texttemplate, texttemplatesrc, tsrc, uid, uirevision, unselected, visible, x, x0, xaxis, xcalendar, xsrc, y, y0, yaxis, ycalendar, ysrc, **kwargs)
  38026         self["metasrc"] = metasrc if metasrc is not None else _v
  38027         _v = arg.pop("mode", None)
> 38028         self["mode"] = mode if mode is not None else _v
  38029         _v = arg.pop("name", None)
  38030         self["name"] = name if name is not None else _v

f:\hidden\Python\lib\site-packages\plotly\basedatatypes.py in __setitem__(self, prop, value)
   3488             # ### Handle simple property ###
   3489             else:
-> 3490                 self._set_prop(prop, value)
   3491 
   3492         # Handle non-scalar case

f:\hidden\Python\lib\site-packages\plotly\basedatatypes.py in _set_prop(self, prop, val)
   3775                 return
   3776             else:
-> 3777                 raise err
   3778 
   3779         # val is None

f:\hidden\Python\lib\site-packages\plotly\basedatatypes.py in _set_prop(self, prop, val)
   3770         validator = self._validators.get(prop)
   3771         try:
-> 3772             val = validator.validate_coerce(val)
   3773         except ValueError as err:
   3774             if self._skip_invalid:

f:\hidden\Python\lib\site-packages\_plotly_utils\basevalidators.py in validate_coerce(self, v)
   1865             validated_v = self.vc_scalar(v)
   1866             if validated_v is None:
-> 1867                 self.raise_invalid_val(v)
   1868 
   1869             v = validated_v

f:\hidden\Python\lib\site-packages\_plotly_utils\basevalidators.py in raise_invalid_val(self, v, inds)
    281                 typ=type_str(v),
    282                 v=repr(v),
--> 283                 valid_clr_desc=self.description(),
    284             )
    285         )

ValueError: 
    Invalid value of type 'builtins.str' received for the 'mode' property of scatter
        Received value: 'line'

    The 'mode' property is a flaglist and may be specified
    as a string containing:
      - Any combination of ['lines', 'markers', 'text'] joined with '+' characters
        (e.g. 'lines+markers')
        OR exactly one of ['none'] (e.g. 'none')

The entire project can be seen here -- https://github.com/mehta-a/AI-For-Tradin...0(1).ipynb
the

def _generate_traces(name_df_color_data):
    traces = []

    for name, df, color in name_df_color_data:
        traces.append(go.Scatter(
            name=name,
            x=df.index,
            y=df,
            mode='line',
            line={'color': color}))
    return traces

I'm using Visual Studio Code with Jupyter notebook
here is the pip list

Package Version
------------------ ------------
-cipy 1.4.1
-umpy 1.18.1
astroid 2.1.0
attrs 19.3.0
backcall 0.1.0
bleach 3.1.0
certifi 2019.6.16
chardet 3.0.4
chart-studio 1.0.0
colorama 0.4.1
colour 0.1.5
cvxpy 1.0.3
cycler 0.10.0
data 0.4
DateTime 4.3
dbfpy 2.3.1
decorator 4.4.1
defusedxml 0.6.0
dill 0.3.1.1
ecos 2.0.7.post1
entrypoints 0.3
eyeD3 0.8.9
fastcache 1.1.0
funcsigs 1.0.2
future 0.18.2
idna 2.6
importlib-metadata 1.4.0
ipykernel 5.1.3
ipython 7.11.1
ipython-genutils 0.2.0
ipywidgets 7.5.1
isort 4.3.4
jedi 0.15.2
Jinja2 2.10.3
joblib 0.14.1
json5 0.9.2
jsonschema 3.2.0
jupyter 1.0.0
jupyter-client 5.3.4
jupyter-console 6.1.0
jupyter-core 4.6.1
jupyterlab 2.0.1
jupyterlab-server 1.0.7
kiwisolver 1.1.0
lazy-object-proxy 1.3.1
lxml 4.4.2
MarkupSafe 1.1.1
mathjax 0.1.2
matplotlib 3.1.3
mccabe 0.6.1
mistune 0.8.4
more-itertools 8.1.0
multiprocess 0.70.9
nbconvert 5.6.1
nbformat 5.0.3
notebook 6.0.2
numpy 1.18.1
osqp 0.6.1
pandas 0.25.3
pandas-datareader 0.8.1
pandocfilters 1.4.2
parso 0.5.2
patsy 0.5.1
pickleshare 0.7.5
pip 20.0.2
plotly 4.5.4
prometheus-client 0.7.1
prompt-toolkit 3.0.2
Pygments 2.5.2
pylint 2.2.2
pyparsing 2.2.0
pyrsistent 0.15.7
python-dateutil 2.6.1
python-magic 0.4.15
pytz 2017.3
pywin32 227
pywinpty 0.5.7
pyzmq 18.1.1
qtconsole 4.6.0
requests 2.18.4
retrying 1.3.3
scikit-learn 0.22.2.post1
scipy 1.4.1
scs 2.1.1.post2
Send2Trash 1.5.0
setuptools 46.0.0
six 1.12.0
statsmodels 0.11.1
terminado 0.8.3
testpath 0.4.4
toolz 0.10.0
tornado 6.0.3
tqdm 4.43.0
traitlets 4.3.3
urllib3 1.22
wcwidth 0.1.8
webencodings 0.5.1
widgetsnbextension 3.5.1
wrapt 1.10.11
xlrd 1.2.0
zipp 1.0.0
zope.interface 4.7.1

[sambanerjee]

any help on this please - I'm still not able to see the issue :(
It is complaining on this function I believe - not sure what it could be ... any help will be appreciated - thanks

def _generate_traces(name_df_color_data):
    traces = []
 
    for name, df, color in name_df_color_data:
        traces.append(go.Scatter(
            name=name,
            x=df.index,
            y=df,
            mode='line',
            line={'color': color}))
    return traces

[Larz60+]

The entire project can be seen here -- https://github.com/mehta-a/AI-For-Tradin...0(1).ipynb

Please post here, in appropriate bbcode tags. Your post will often get ignored unless all is immediately available. There are many posts that need to be attended to each day and only a handful of moderators to answer all, so any help is appreciated.

[sambanerjee]

Thanks for the response - however the solution in the link Project Solution Link is not working. Hence posted here for any help.
It might have something to do with the version of plotly or an environment issue maybe ?

[Larz60+]

The version of plotly that you're using requires ipwidgets 7.5 (which you haveinstalled) and jupyterlab 1.2

JupyterLab Support (Python 3.5+)

For use in JupyterLab, install the jupyterlab and ipywidgets packages using pip...

pip install jupyterlab==1.2 "ipywidgets==7.5"

you're running jupyterlab 2.0.1. I can't say if that's a problem, but needs looking into.
perhaph there's mor on the github repository here: https://plot.ly/python/

also was built for python 3.7.1, but is probably ok if your version is newer.
you can tell from commandline (arg is capital V):
python -V

[sambanerjee]

Appreciate being at this --
I'm on Python version 3.7.2
I ran pip install jupyterlab==1.2 "ipywidgets==7.5" but still get the same error

I made changes to the code but still get the same error

def _generate_traces(name_df_color_data):
    traces = []

    for name, df, color in name_df_color_data:
        traces.append(go.Scatter(
            name=name,
            x=df.index,
            y=df,
            mode='markers',
            lines={'color': color}))

    return traces

updated mode = 'markers' from 'line' and made line={'color': color} to lines={'color': color}
still

ValueError:
Invalid value of type 'builtins.str' received for the 'mode' property of scatter
Received value: 'line'
not sure where it is getting 'line' from !

[Larz60+]

You just answered your own question. Look at line 9 and remove comma at end!

[sambanerjee]

line 9 & 10 reads

mode='markers',
lines={'color': color}))

if I remove the comma after 'markers' then it will error out

the error currently I'm getting is


ValueError:
Invalid value of type 'builtins.str' received for the 'mode' property of scatter
Received value: 'line'


I'm not sure where mode is receiving 'line' from ?

[Larz60+]

nevertheless, remove the comma from line 9 and retry.
It is possible for the interpreter to lose the line number when a linw in not properly formatted.

[sambanerjee]

still no luck - same error :(
quite baffled at the error !

\S