Hi, @mootari made me discover Dataflow / Mike Bostock / Observable which provides the importCell() function to dynamically import cells from another notebook. I updated the small notebook where I showed how to do the same using the import {...} with {...} from '...' syntax. But both examples coll…

I made a tweak to my notebook so that importCell passes through the existing require function, rather than loading a new one. // Instantiate a new runtime, but reuse the existing runtime’s require. // (This is ensures that any requires in imports still work.) const library = Object.assign(new Libra…

Could you try removing the workaround? After an initial failure, I can’t seem to replicate the problem anymore. (Perhaps a caching issue?) Edit: Ah, there it is again, after removing and adding back the import in a new cell. Edit 2: I can’t reliably reproduce the error. Still recommending to remov…

Oh, you’re right, it only occurs if the cache is deactivated, or if it’s the cache is empty (some request has still not been cached). Reloading the page with the cache activated removes the error. So: we still need to understand why it fails on the first visit.

Could you republish your notebook without the workaround, please?

I suspect that this is a conflict between two d3-require instances: packaged with Observable’s Runtime, loads @mbostock/dataflow#d3 packaged with runtime.umd.js which is loaded in @mbostock/dataflow#Runtime ; attempts to load @d3/histogram#d3 This second attempt causes the error. I think @mbosto…

Thanks for taking the time to dig into that problem. I wouldn’t have been able to reach that point.

I haven’t had a chance to dig into the issue here, but I think I ran into something similar in this old thread: [image] Require + notebook runtime Community Help I’ve been running into an issue where require'd modules intermittently throw a mysterious Pe: invalid module e…

The process was: verify that you can reliably reproduce the error (:+1: for that with cache disabled) in your developer tools, open the “Search” drawer and search for “invalid module” (it should appear in two files) prettify each file and set a breakpoint in the corresponding line (you may have to…

Thanks a lot for the detailed answer, it’s very useful, and I could reproduce the process. Do you know if the developer tools provide a way to search for a string (“invalid module” in our case) in all the sources, or is it necessary to open every file then search in it?

[image] severo: Do you know if the developer tools provide a way to search for a string (“invalid module” in our case) in all the sources Yes, that is the “search drawer” to which I was referring in point 2: in your developer tools, open the “Search” drawer and search for “invalid module” …

importCell conflicts with static import

Community Help

bgchen January 28, 2021, 10:58pm 8

I haven’t had a chance to dig into the issue here, but I think I ran into something similar in this old thread:

Topic		Replies	Views
importCell from 'dataflow' Community Help	3	554	June 5, 2021
Require + notebook runtime Community Help	4	1936	March 8, 2019
Import/require works then doesn't Community Help	6	1544	January 10, 2021
Runtime and dependencies Community Help	7	1621	May 7, 2019
In defense of static imports Feedback	10	2292	December 22, 2020

importCell conflicts with static import

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