(1) When loading just pypostprocessing, Pressurized Fluids (CompressedFluids) and their dependancies:
4.549 Error ModManager.cpp:1558: Failed to load mod "pypostprocessing": __pypostprocessing__/data-updates.lua:28: attempt to all global 'RECIPE' (a nil value)
stack traceback:
__pypostprocessing__/data-updates.lua:28: in function 'set_underground_recipe'
__pypostprocessing__/data-updates.lua:33: in main chunk
(2) With full Py2 suite, Pressurized Fluids (CompressedFluids) and their dependancies:
40.524 Error ModManager.cpp:1558: Failed to load mod "pypostprocessing": __pypostprocessing__/prototypes/functions/auto_tech.lua:150:
ERROR: Dependency loop detected
stack traceback:
[C]: in function 'error'
__pypostprocessing__/prototypes/functions/auto_tech.lua:150: in function 'run'
__pypostprocessing__/data-final-fixes.lua:144: in main chunk
40.525 Loading mod core 0.0.0 (data.lua)
40.857 Checksum for core: 1224479708
40.904 Error ModManager.cpp:1558: Error in assignID: recipe-category with name 'crafting' does not exist.
EDIT: Cross-posted to Pressurized Fluids
https://mods.factorio.com/mod/CompressedFluids/discussion/635ffcb3c66d3969c7b43543