Not working with Loompy v3

[cbravo93]

Hi,

The current loomR version does not seem to work with loompy v3. Are you planning to upgrade loomR to be compatible with it?

Thanks!

C

[qoiopipq]

@cbravo93 same problem, have you fixed it?

[chansigit]

same problem, it could not be used in pyscenic which requires loompy v3

[jpcartailler]

Ditto here. If there are no plans for adding loom v3 compatibility, please let us know. If anyone knows of a method to convert from v2 to v3, please post here too. I did try https://rdrr.io/github/aertslab/SCopeLoomR/man/convert_to_loom_v3_spec.html but it didn't work:

> l <- open_loom(loom_filename)
Warning message:
In open_loom(loom_filename) :
  Loom specification version 2 or smaller detected!
> convert_to_loom_v3_spec(l)
Error in h5attr(x = loom, which = GA_METADATA_NAME) : 
  Attribute does not exist