TypeError: must be real number, not str with evolve

[gizemtanriver]

Hi, thanks for this amazing repo first of all!

I am working with the v2.0 release of the repo and so far I got quite promising results on my custom dataset. I tried to use --evolve today but I am getting a TypeError from the print_mutation function in utils.py at the end of the first run. It seems to be related to 'SGD' in hyp dictionary - which is a string. I see that the optimizer parameter was added to the dict in v2.0 so I guess this wasn't an issue in the previous release.

Input:

!python yolov5/train.py --img 512 --batch 16 --epochs 100 --yolov5/data/custom_data.yaml \
    --cfg yolov5/models/custom_yolov5s.yaml \
    --weights yolov5/weights/yolov5s.pt --cache --evolve

Output:

Traceback (most recent call last):
  File "yolov5/train.py", line 516, in <module>
    print_mutation(hyp, results, opt.bucket)
  File "/content/drive/.shortcut-targets-by-id/1hQ281-8ogL2dJzHbXZSWEYDIYei6RRbe/YOLOv5/yolov5/utils/utils.py", line 830, in print_mutation
    b = '%10.3g' * len(hyp) % tuple(hyp.values())  # hyperparam values
TypeError: must be real number, not str

[github-actions]

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[glenn-jocher]

@gizemtanriver hi, thank you for the bug report. Yes you are correct, --evolve is currently out of order due to recent PRs. It's on a long list of TODOs. I can not give you an ETA. In the meantime it's inoperable.

[glenn-jocher]

@gizemtanriver this bug should be fixed now. Let me know if you find otherwise.

[weizhou1001]

Hi, I'm on master branch with commit 9cf80b7. I'm still getting this error
10 epochs completed in 0.248 hours. Results saved to runs/evolve/exp Traceback (most recent call last): File "train.py", line 642, in <module> main(opt) File "train.py", line 622, in main print_mutation(results, hyp.copy(), save_dir, opt.bucket) File "/home/wzhou/src/yolov5/utils/general.py", line 804, in print_mutation f.write(s + ('%20.5g,' * n % vals).rstrip(',') + '\n') TypeError: must be real number, not list
Any ideas what would be the problem?

[glenn-jocher]

@weizhou1001 👋 hi, thanks for letting us know about this possible problem with YOLOv5 🚀. --evolve works correctly, I just tested now:

!python train.py --img 640 --batch 16 --epochs 3 --data coco128.yaml --weights yolov5s.pt --evolve 5

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