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Add backwards compatibility w/ older versions of diffusers (<0.25.0) #5083

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merged 5 commits into from
Feb 6, 2024
Merged

Add backwards compatibility w/ older versions of diffusers (<0.25.0) #5083

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5072083
Add backwards compatibility w/ older versions of diffusers (<0.25.0)
lekurile Feb 5, 2024
7282bbf
Simplify if-else, add comments
lekurile Feb 6, 2024
755b01b
Merge branch 'master' into lekurile/sd_min_ver
lekurile Feb 6, 2024
59a888d
Further simplify if-else chain
lekurile Feb 6, 2024
c9f42ab
Merge branch 'lekurile/sd_min_ver' of https://github.com/microsoft/De…
lekurile Feb 6, 2024
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14 changes: 10 additions & 4 deletions deepspeed/module_inject/containers/vae.py
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Original file line number Diff line number Diff line change
Expand Up @@ -13,11 +13,17 @@ def __init__(self):
super().__init__()
try:
import diffusers
if hasattr(diffusers.models.autoencoders.vae, "AutoencoderKL"):
self._orig_layer_class = diffusers.models.autoencoders.vae.AutoencoderKL
else:
# Diffusers >= 0.12.0 changes location of AutoencoderKL
if hasattr(diffusers.models, "autoencoders"):
# Diffusers >= 0.25.0
# Changes location to 'autoencoders' directory
self._orig_layer_class = diffusers.models.autoencoders.autoencoder_kl.AutoencoderKL
elif hasattr(diffusers.models.vae, "AutoencoderKL"):
# Diffusers < 0.12.0
self._orig_layer_class = diffusers.models.vae.AutoencoderKL
else:
# Diffusers >= 0.12.0 & < 0.25.0
# Changes location of AutoencoderKL
self._orig_layer_class = diffusers.models.autoencoder_kl.AutoencoderKL
except ImportError:
self._orig_layer_class = None

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