conflicting dependencies

If I follow the installation steps currently in the README, I get the following from the last pip command (i.e. when installing layout-parser a second time, after installing detectron2):

Installing collected packages: pycocotools, fvcore
  Attempting uninstall: pycocotools
    Found existing installation: pycocotools 2.0.2
    Uninstalling pycocotools-2.0.2:
      Successfully uninstalled pycocotools-2.0.2
  Attempting uninstall: fvcore
    Found existing installation: fvcore 0.1.2.post20210128
    Uninstalling fvcore-0.1.2.post20210128:
      Successfully uninstalled fvcore-0.1.2.post20210128
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
ocrd-segment 0.1.3 requires pycocotools>=2.0.2, but you have pycocotools 2.0.1 which is incompatible.
detectron2 0.3 requires fvcore<0.1.3,>=0.1.2, but you have fvcore 0.1.1.post20200623 which is incompatible.
detectron2 0.3 requires pycocotools>=2.0.2, but you have pycocotools 2.0.1 which is incompatible.
Successfully installed fvcore-0.1.1.post20200623 pycocotools-2.0.1

So it seems we are in conflict with current master of detectron2 here.

Could you point me to the right version of detectron2 to fetch, or update layout-parser accordingly?

Also, why not make the detectron2 dependency explicit in setup.py?

[Jim-Salmons]

@bertsky, nice to virtually meet you. Found your Leipzig institutional affiliation via search engine sleuthing. 😃 So wish you were on Twitter so you could be engaged in the fine-grained research chatter related to the intersection of Digital Humanities and AI/ML wrt digitization pipelines. As an independent Citizen Scientist, that communication channel is invaluable to me.

You must be buddies with Clemens Neudecker and the OCR-D network given your recent involvement in that mega project. I know them through involvement in the Time Machine EU project, NewsEye, DATeCH, and Andreas Maier’s Pattern Recognition lab at FAU etc. First noticed your GitHub comment about LAREX’s PAGEgts reading order issue. I resonated with that as magazines and newspapers have complex document structures where within page reading order is indeterminate while being determinant at the issue level.

It is not surprising to see you here kicking the tires of Zejiang @lolipopshock Layout-Parser. The PDF annotation tool Zejiang alludes to is #PAWLS from @allenai lab here: https://github.com/allenai/pawls. Looks awesome and could be very helpful to my #MAGAZINEgts research. Would corresponding to you via your Leipzig email address be okay? Or do you have a preferred way to chat about shared interests?

[ermissa]

Thanks @lolipopshock , I successfully installed and used library. Dependency problem solved for me.