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YOLOv5 PyTorch Hub models >> check_requirements() #2592

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Mar 24, 2021
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YOLOv5 PyTorch Hub models >> check_requirements() #2592

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17 changes: 14 additions & 3 deletions utils/general.py
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Original file line number Diff line number Diff line change
Expand Up @@ -52,6 +52,11 @@ def isdocker():
return Path('/workspace').exists() # or Path('/.dockerenv').exists()


def emojis(str=''):
# Return platform-dependent emoji-safe version of string
return str.encode().decode('ascii', 'ignore') if platform.system() == 'Windows' else str


def check_online():
# Check internet connectivity
import socket
Expand Down Expand Up @@ -79,7 +84,7 @@ def check_git_status():
f"Use 'git pull' to update or 'git clone {url}' to download latest."
else:
s = f'up to date with {url} ✅'
print(s.encode().decode('ascii', 'ignore') if platform.system() == 'Windows' else s) # emoji-safe
print(emojis(s)) # emoji-safe
except Exception as e:
print(e)

Expand All @@ -93,14 +98,20 @@ def check_requirements(file='requirements.txt', exclude=()):
print(f"{prefix} {file.resolve()} not found, check failed.")
return

n = 0 # number of packages updates
requirements = [f'{x.name}{x.specifier}' for x in pkg.parse_requirements(file.open()) if x.name not in exclude]
for r in requirements:
try:
pkg.require(r)
except Exception as e: # DistributionNotFound or VersionConflict if requirements not met
print(f"{prefix} {e.req} not found and is required by YOLOv5, attempting auto-install...")
n += 1
print(f"{prefix} {e.req} not found and is required by YOLOv5, attempting auto-update...")
print(subprocess.check_output(f"pip install '{e.req}'", shell=True).decode())
print(f'Please restart runtime or rerun command for update to take effect.')

if n: # if packages updated
s = f"{prefix} {n} package{'s' * (n > 1)} updated per {file.resolve()}\n" \
f"{prefix} ⚠️ {colorstr('bold', 'Restart runtime or rerun command for updates to take effect')}\n"
print(emojis(s)) # emoji-safe


def check_img_size(img_size, s=32):
Expand Down