Python Tensorflow 报错 ImportError: cannot import name '_validate_lengths' 解决方法

本文主要介绍Python 中运行Tensorflow代码,报错: ImportError: cannot import name '_validate_lengths' 解决方法。

运行如下代码:

import tensorflow as tf
from skimage import transform
from skimage import data
import matplotlib.pyplot as plt
import os
import numpy as np
from skimage.color import rgb2gray
import random
#listdir: This method returns a list containing the names of the entries in the directory given by path.
# Return True if path is an existing directory
def load_data(data_dir):
# Get all subdirectories of data_dir. Each represents a label.
directories = [d for d in os.listdir(data_dir)
if os.path.isdir(os.path.join(data_dir, d))]
# Loop through the label directories and collect the data in
# two lists, labels and images.
labels = []
images = []
for d in directories:
label_dir = os.path.join(data_dir, d)
file_names = [os.path.join(label_dir, f)
for f in os.listdir(label_dir)
if f.endswith(".ppm")]
for f in file_names:
images.append(data.imread(f))
labels.append(int(d))
return images, labels

ROOT_PATH = "/home/tahir/PhD Study/Traffic Signs Using Tensorflow/"
train_data_dir = os.path.join(ROOT_PATH, "TrafficSigns/Training")
test_data_dir = os.path.join(ROOT_PATH, "TrafficSigns/Testing")
images, labels = load_data(train_data_dir)
# Print the `images` dimensions
print(images.ndim)
# Print the number of `images`'s elements
print(images.size)
# Print the first instance of `images`
images[0]

报错:

from numpy.lib.arraypad import _validate_lengths
ImportError: cannot import name '_validate_lengths'

解决方法:

pip install --upgrade scikit-image

提示信息:

    Installing collected packages: dask, scikit-image
Found existing installation: dask 0.19.1
Uninstalling dask-0.19.1:
Successfully uninstalled dask-0.19.1
Found existing installation: scikit-image 0.13.0
Uninstalling scikit-image-0.13.0:
Successfully uninstalled scikit-image-0.13.0
Successfully installed dask-1.0.0 scikit-image-0.14.2

相关文档https://github.com/scikit-image/scikit-image/issues/3906#issuecomment-492039622

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