Pysal: folium breakage

[sjsrey]

In testing: folium_mapping.ipynb it appears folium has changed an api as our example is broken.

fm.choropleth_map('./example.json', 'FIPS', 'HR90')

AttributeError Traceback (most recent call last)
in ()
----> 1 fm.choropleth_map('./example.json', 'FIPS', 'HR90')

/Users/serge/Dropbox/p/pysal/src/pysal/pysal/contrib/viz/folium_mapping.pyc in choropleth_map(jsonpath, key, attribute, df, classification, classes, bins, std, centroid, zoom_start, tiles, fill_color, fill_opacity, line_opacity, legend_name, save)
249
250 #folium call, try abstracting to a "mapper" function, passing list of args
--> 251 choromap.geo_json(geo_path=jsonpath, key_on = jsonkey,
252 data = df, columns = dfkey,
253 fill_color = fill_color, fill_opacity = fill_opacity,

AttributeError: 'Map' object has no attribute 'geo_json'

[ljwolf]

This should be fixed?

@weikang9009 reported this in a previous issue. and I thought I addressed it in #835, but now when I view that PR, it looks empty. I've never seen an empty PR, & it clearly didn't make it upriver. I'll pull in that fix & sub.

[sjsrey]

The bug is in 1.14.2 as we are testing it on the workshop materials.

[ljwolf]

I've fixed the issue, but now (for some reason) any plotting of the folium map inline with the jupyter notebook fails if the map exceeds a given number of features.

What a bummer.
I've subset it to texas & it works fine:

I'd like to update the notebook segment. I can submit those changes to both your workshop repo & this, if that's alright?

[ocefpaf]

I've fixed the issue, but now (for some reason) any plotting of the folium map inline with the jupyter notebook fails if the map exceeds a given number of features. What a bummer.

Indeed :-( but that limitation is new in the latest jupyter notebook format and not folium.
One workaround it to is to start jupyter with

jupyter notebook --no-browser --NotebookApp.iopub_data_rate_limit=1000000000

[ljwolf]

Ah! good to know.

[ZhihaoJia16]

Now, I met the similar problem:

AttributeError Traceback (most recent call last)
in ()
1 map = folium.Map(location=[40.748817, -73.985428], zoom_start=13)
----> 2 map.geo_json(geo_path=r'C:/Users/j00422098/Desktop/Python/PythonPackage/jupyter/USA.json', data=su_lt_two,
3 columns=['Zip', 'Rent'],
4 key_on='feature.properties.postalCode',
5 threshold_scale=[1700.00, 1900.00, 2100.00, 2300.00, 2500.00, 2750.00],

AttributeError: 'Map' object has no attribute 'geo_json'

Code as follows:

import folium
map = folium.Map(location=[40.748817, -73.985428], zoom_start=13)
map.geo_json(geo_path=r'C:/Users/j00422098/Desktop/Python/PythonPackage/jupyter/USA.json', data=su_lt_two,
columns=['Zip', 'Rent'],
key_on='feature.properties.postalCode',
threshold_scale=[1700.00, 1900.00, 2100.00, 2300.00, 2500.00, 2750.00],
fill_color='YlOrRd', fill_opacity=0.7, line_opacity=0.2,
legend_name='Rent (%)',
reset=True)
map.create_map(path='nyc.html')

[sjsrey]

@ZhihaoJia16 thanks for the code snippet in the bug report.

It appears as if you are using folium directly and not via pysal - is this the intention?
If so, please redirect your bug report to the folium project. If not, we would need more context to help you debug.

[JiaJingnan]

similar problem, how can I fix it? check the offical folium project?

[sjsrey]

@JiaJingnan if it is the same problem as @ZhihaoJia16 then I would suggest checking with the folium project.