Tensorflow ImportError:没有名为'；后端口'；

使用tensorflow安装重新培训模型时，我运行了以下命令：

bazel-bin/tensorflow/examples/image_retraining/retrain --image_dir <..directory..>

bazel-bin/tensorflow/examples/image\u-retaining/retain--image\u-dir

错误：

ImportError:没有名为'backport'的模块
回溯（最近一次呼叫最后一次）：
文件“/home/nishith/tensorflow/tensorflow/bazel-bin/tensorflow/examples/image\u retaining/retain.runfiles/org\u tensorflow/tensorflow/examples/image\u retaining/retain.py”，第91行
导入tensorflow作为tf
文件“/home/nishith/tensorflow/tensorflow/bazel-bin/tensorflow/examples/image\u-retaining/retain.runfiles/org\u-tensorflow/tensorflow/\uu-init\uuuu.py”，第24行
从tensorflow.python导入*
文件“/home/nishith/tensorflow/tensorflow/bazel-bin/tensorflow/examples/image_-retaining/retain.runfiles/org_-tensorflow/tensorflow/python/__-init___;.py”，第64行
从tensorflow.python.framework.framework_lib导入*
文件“/home/nishith/tensorflow/tensorflow/bazel-bin/tensorflow/examples/image_-retaining/retain.runfiles/org_-tensorflow/tensorflow/python/framework/framework_-lib.py”，第100行，in
从tensorflow.python.framework.subscribe导入订阅
文件“/home/nishith/tensorflow/tensorflow/bazel-bin/tensorflow/examples/image\u retaining/retain.runfiles/org\u tensorflow/tensorflow/python/framework/subscribe.py”，第26行
从tensorflow.python.ops导入变量
文件“/home/nishith/tensorflow/tensorflow/bazel-bin/tensorflow/examples/image\u retaining/retain.runfiles/org\u tensorflow/tensorflow/python/ops/variables.py”，第26行
从tensorflow.python.ops导入控制\u流\u操作
文件“/home/nishith/tensorflow/tensorflow/bazel bin/tensorflow/examples/image\u retaining/retain.runfiles/org\u tensorflow/tensorflow/python/ops/control\u flow\u ops.py”，第70行
从tensorflow.python.ops导入tensor_数组_ops
文件“/home/nishith/tensorflow/tensorflow/bazel-bin/tensorflow/examples/image_-retaining/retain.runfiles/org_-tensorflow/tensorflow/python/ops/tensor_-array_-ops.py”，第33行
从tensorflow.python.util导入您应该使用的tf
文件“/home/nishith/tensorflow/tensorflow/bazel-bin/tensorflow/examples/image_-retaining/retain.runfiles/org_-tensorflow/tensorflow/python/util/tf_-should_-use.py”，中第28行
从Backport导入weakref#pylint:disable=g-bad-import-order
ImportError:没有名为“backports”的模块

试试：

---

我确实安装了

pip backports.weakref

，但错误仍然存在，我最终发现重要的是

PYTHONPATH

对应路径的错误设置。@Jecky您是如何诊断和修复的？

pip install backports.weakref