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TypeError: Symbol.asyncIterator is not defined

See original GitHub issue

Installed Bokeh 1.4.0 using “pip3 install bokeh” using Python 3.6.8 on Linux Mint 19.1.

Trying to use Latex-Labels as in the example from the extension gallery, I get the following error message:

Compilation failed:

TypeError: Symbol.asyncIterator is not defined.
    at __asyncValues (/usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:149:19)
    at /usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:168:36
    at Generator.next (<anonymous>:null:null)
    at /usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:144:75
    at new Promise (<anonymous>:null:null)
    at __awaiter (/usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:130:16)
    at read_stdin (/usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:162:16)
    at /usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:205:48
    at Generator.next (<anonymous>:null:null)
    at /usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:144:75
    at new Promise (<anonymous>:null:null)
    at __awaiter (/usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:130:16)
    at compile (/usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:194:16)
    at /usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:244:33
    at Generator.next (<anonymous>:null:null)
    at /usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:144:75
    at new Promise (<anonymous>:null:null)
    at __awaiter (/usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:130:16)
    at main (/usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:211:16)
    at Object._ (/usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:252:5)
    at require (/usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:88:23)
    at P (/usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:96:16)
    at /usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:126:1
    at parent_require (/usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:32:19)
    at Object.<anonymous> (/usr/local/lib/python3.6/dist-packages/bokeh/server/static/js/compiler.js:33:3)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)
    at Function.Module.runMain (module.js:693:10)
    at startup (bootstrap_node.js:188:16)
    at bootstrap_node.js:609:3