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Editorial Team
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Asked: 2026-05-15T16:07:06+00:00

I am currently working on getting JavaScript to execute successfully from within Python. I

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I am currently working on getting JavaScript to execute successfully from within Python. I have implemented a JS engine (v8) using the PyV8 package. From here I can execute primitive JavaScript (“1+2”, etc). However, for JavaScript that uses references to “document” or “window” the code will throw an error. I am looking, ideally, for a Python implementation however a JavaScript implementation would work as well as I could prepend it to my script before executing it what my JavaScript engine.

To summarize: How can I execute JavaScript, that uses ‘Document’ and/or ‘Window’, from within JavaScript?

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1 Answer

  1. Editorial Team

    I was having the same problem when using Spidermonkey (a command-line JavaScript interpreter) and trying to run a script that relied on the non-existent document and window objects.

    I solved it by using the Env-JS project, which sets up independent “fake” objects for them.

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