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import subprocess
import sys
# DON'T USE StrictVersion - cannot handle pre_release version
# try:
# from distutils.version import StrictVersion
# except:
# print(f"[ComfyUI-Manager] 'distutils' package not found. Activating fallback mode for compatibility.")
class StrictVersion:
def __init__(self, version_string):
self.version_string = version_string
self.major = 0
self.minor = 0
self.patch = 0
self.pre_release = None
self.parse_version_string()
def parse_version_string(self):
parts = self.version_string.split('.')
if not parts:
raise ValueError("Version string must not be empty")
self.major = int(parts[0])
self.minor = int(parts[1]) if len(parts) > 1 else 0
self.patch = int(parts[2]) if len(parts) > 2 else 0
# Handling pre-release versions if present
if len(parts) > 3:
self.pre_release = parts[3]
def __str__(self):
version = f"{self.major}.{self.minor}.{self.patch}"
if self.pre_release:
version += f"-{self.pre_release}"
return version
def __eq__(self, other):
return (self.major, self.minor, self.patch, self.pre_release) == \
(other.major, other.minor, other.patch, other.pre_release)
def __lt__(self, other):
if (self.major, self.minor, self.patch) == (other.major, other.minor, other.patch):
return self.pre_release_compare(self.pre_release, other.pre_release) < 0
return (self.major, self.minor, self.patch) < (other.major, other.minor, other.patch)
@staticmethod
def pre_release_compare(pre1, pre2):
if pre1 == pre2:
return 0
if pre1 is None:
return 1
if pre2 is None:
return -1
return -1 if pre1 < pre2 else 1
def __le__(self, other):
return self == other or self < other
def __gt__(self, other):
return not self <= other
def __ge__(self, other):
return not self < other
def __ne__(self, other):
return not self == other
pip_map = None
def get_installed_packages(renew=False):
global pip_map
if renew or pip_map is None:
try:
result = subprocess.check_output([sys.executable, '-m', 'pip', 'list'], universal_newlines=True)
pip_map = {}
for line in result.split('\n'):
x = line.strip()
if x:
y = line.split()
if y[0] == 'Package' or y[0].startswith('-'):
continue
pip_map[y[0]] = y[1]
except subprocess.CalledProcessError as e:
print(f"[ComfyUI-Manager] Failed to retrieve the information of installed pip packages.")
return set()
return pip_map
def clear_pip_cache():
global pip_map
pip_map = None
torch_torchvision_version_map = {
'2.5.1': '0.20.1',
'2.5.0': '0.20.0',
'2.4.1': '0.19.1',
'2.4.0': '0.19.0',
'2.3.1': '0.18.1',
'2.3.0': '0.18.0',
'2.2.2': '0.17.2',
'2.2.1': '0.17.1',
'2.2.0': '0.17.0',
'2.1.2': '0.16.2',
'2.1.1': '0.16.1',
'2.1.0': '0.16.0',
'2.0.1': '0.15.2',
'2.0.0': '0.15.1',
}
class PIPFixer:
def __init__(self, prev_pip_versions):
self.prev_pip_versions = { **prev_pip_versions }
def torch_rollback(self):
spec = self.prev_pip_versions['torch'].split('+')
if len(spec) > 0:
platform = spec[1]
else:
cmd = [sys.executable, '-m', 'pip', 'install', '--force', 'torch', 'torchvision', 'torchaudio']
subprocess.check_output(cmd, universal_newlines=True)
print(cmd)
return
torch_ver = StrictVersion(spec[0])
torch_ver = f"{torch_ver.major}.{torch_ver.minor}.{torch_ver.patch}"
torchvision_ver = torch_torchvision_version_map.get(torch_ver)
if torchvision_ver is None:
cmd = [sys.executable, '-m', 'pip', 'install', '--pre',
'torch', 'torchvision', 'torchaudio',
'--index-url', f"https://download.pytorch.org/whl/nightly/{platform}"]
print("[manager-core] restore PyTorch to nightly version")
else:
cmd = [sys.executable, '-m', 'pip', 'install',
f'torch=={torch_ver}', f'torchvision=={torchvision_ver}', f"torchaudio=={torch_ver}",
'--index-url', f"https://download.pytorch.org/whl/{platform}"]
print(f"[manager-core] restore PyTorch to {torch_ver}+{platform}")
subprocess.check_output(cmd, universal_newlines=True)
def fix_broken(self):
new_pip_versions = get_installed_packages(True)
# remove `comfy` python package
try:
if 'comfy' in new_pip_versions:
cmd = [sys.executable, '-m', 'pip', 'uninstall', 'comfy']
subprocess.check_output(cmd, universal_newlines=True)
print(f"[manager-core] 'comfy' python package is uninstalled.\nWARN: The 'comfy' package is completely unrelated to ComfyUI and should never be installed as it causes conflicts with ComfyUI.")
except Exception as e:
print(f"[manager-core] Failed to uninstall `comfy` python package")
print(e)
# fix torch - reinstall torch packages if version is changed
try:
if self.prev_pip_versions['torch'] != new_pip_versions['torch'] \
or self.prev_pip_versions['torchvision'] != new_pip_versions['torchvision'] \
or self.prev_pip_versions['torchaudio'] != new_pip_versions['torchaudio']:
self.torch_rollback()
except Exception as e:
print(f"[manager-core] Failed to restore PyTorch")
print(e)
# fix opencv
try:
ocp = new_pip_versions.get('opencv-contrib-python')
ocph = new_pip_versions.get('opencv-contrib-python-headless')
op = new_pip_versions.get('opencv-python')
oph = new_pip_versions.get('opencv-python-headless')
versions = [ocp, ocph, op, oph]
versions = [StrictVersion(x) for x in versions if x is not None]
versions.sort(reverse=True)
if len(versions) > 0:
# upgrade to maximum version
targets = []
cur = versions[0]
if ocp is not None and StrictVersion(ocp) != cur:
targets.append('opencv-contrib-python')
if ocph is not None and StrictVersion(ocph) != cur:
targets.append('opencv-contrib-python-headless')
if op is not None and StrictVersion(op) != cur:
targets.append('opencv-python')
if oph is not None and StrictVersion(oph) != cur:
targets.append('opencv-python-headless')
if len(targets) > 0:
for x in targets:
cmd = [sys.executable, '-m', 'pip', 'install', f"{x}=={versions[0].version_string}"]
subprocess.check_output(cmd, universal_newlines=True)
print(f"[manager-core] 'opencv' dependencies were fixed: {targets}")
except Exception as e:
print(f"[manager-core] Failed to restore opencv")
print(e)
# fix numpy
try:
np = new_pip_versions.get('numpy')
if np is not None:
if StrictVersion(np) >= StrictVersion('2'):
subprocess.check_output([sys.executable, '-m', 'pip', 'install', f"numpy<2"], universal_newlines=True)
except Exception as e:
print(f"[manager-core] Failed to restore numpy")
print(e)
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