解决fp = builtins.open(filename, “w+b“)FileNotFoundError: [Errno 2] No such file or directory:
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项目场景：
三维草图生成训练
问题描述：
Traceback (most recent call last):
File "sketch_gcn.py", line 392, in <module>
model.train(epoch)
File "sketch_gcn.py", line 264, in train
self.conditional_generation(epoch)
File "sketch_gcn.py", line 344, in conditional_generation
make_image(sequence, epoch)
File "sketch_gcn.py", line 155, in make_image
pil_image.save(name, "JPEG")
File "/root/anaconda3/envs/dpm-pc-gen/lib/python3.7/site-packages/PIL/Image.py", line 2169, in save
fp = builtins.open(filename, "w+b")
FileNotFoundError: [Errno 2] No such file or directory: './model_save/500_output_.jpg'原因分析：
PIL保存模型的时候，如果代码里的目录不存在，PIL不会自动创建目录，也不会主动抛出异常。
解决方案：
1、代码里加上异常处理，打印出异常，这样程序就不会崩。
pil_image = PIL.Image.frombytes('RGB', canvas.get_width_height(),
canvas.tostring_rgb())
name = f"./model_save/" + str(epoch) + name + '.jpg'
print("pil_image_save name by wangqiang", name)
try:
pil_image.save(name, "JPEG")
except Exception as e:
print("pil_image_save save error", e)2、创建相应目录
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