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python - 为什么我在安装了 Tensorflow 的所有库后会出现无目录错误？

问题描述

我正在关注本教程：https ://github.com/RomRoc/objdet_train_tensorflow_colab/blob/master/objdet_custom_tf_colab.ipynb

当我尝试运行第一个代码块时：


!apt-get install -qq protobuf-compiler python-tk

!pip install -q Cython contextlib2 pillow lxml matplotlib PyDrive

!pip install -q pycocotools

%cd ~/models/research
!protoc object_detection/protos/*.proto --python_out=.

import os
os.environ['PYTHONPATH'] += ':/content/models/research/:/content/models/research/slim/'

!python object_detection/builders/model_builder_test.py

我收到此错误：

/content
object_detection/protos/*.proto: No such file or directory
python3: can't open file 'object_detection/builders/model_builder_test.py': [Errno 2] No such file or directory

正如教程所说，我已经在 Google Colab 中安装了所有库，所以我不明白为什么会出现此错误或如何修复它。任何帮助将非常感激。

标签： pythontensorflowprotocol-buffersgoogle-colaboratoryapt

解决方案

我可以在 Google Colab 中重现您的问题

!apt-get install -qq protobuf-compiler python-tk

!pip install -q Cython contextlib2 pillow lxml matplotlib PyDrive

!pip install -q pycocotools

%cd ~/models/research
!protoc object_detection/protos/*.proto --python_out=.

import os
os.environ['PYTHONPATH'] += ':/content/models/research/:/content/models/research/slim/'

!python object_detection/builders/model_builder_test.py

输出：

[Errno 2] No such file or directory: '/root/models/research'
/content
object_detection/protos/*.proto: No such file or directory
python3: can't open file 'object_detection/builders/model_builder_test.py': [Errno 2] No such file or directory

解决方案：要解决此问题，您可以在运行代码之前通过包含以下两行/content来更改当前目录。/root/models/research

%cd
!git clone --quiet https://github.com/tensorflow/models.git

这是更新的代码

%cd

!git clone --quiet https://github.com/tensorflow/models.git

!apt-get install -qq protobuf-compiler python-tk

!pip install -q Cython contextlib2 pillow lxml matplotlib PyDrive

!pip install -q pycocotools

%cd ~/models/research
!protoc object_detection/protos/*.proto --python_out=.

import os
os.environ['PYTHONPATH'] += ':/content/models/research/:/content/models/research/slim/'

!python object_detection/builders/model_builder_test.py

输出：

/root
/root/models/research
2020-05-08 15:23:47.035256: I tensorflow/stream_executor/platform/default/dso_loader.cc:44] Successfully opened dynamic library libcudart.so.10.1

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