NameError：未定义名称“get_ipython”
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NameError: name 'get_ipython' is not defined
提问by dyno8426
I am working on Caffe framework and using PyCaffe interface. I am using a Python script obtained from converting the IPython Notebook 00-classification.ipynbfor testing the classification by a trained model for ImageNet. But any get_ipython()statement in the script is giving the following error:
我正在研究 Caffe 框架并使用 PyCaffe 接口。我正在使用通过转换 IPython Notebook 00-classification.ipynb获得的 Python 脚本，通过ImageNet 的训练模型测试分类。但是脚本中的任何get_ipython()语句都会出现以下错误：
$ python python/my_test_imagenet.py
Traceback (most recent call last):
File "python/my_test_imagenet.py", line 23, in <module>
get_ipython().magic(u'matplotlib inline')
In the script, I'm importing the following:
在脚本中，我正在导入以下内容：
import numpy as np
import matplotlib.pyplot as plt
get_ipython().magic(u'matplotlib inline')
# Make sure that caffe is on the python path:
caffe_root = '/path/to/caffe/'
import sys
sys.path.insert(0, caffe_root + 'python')
import caffe
plt.rcParams['figure.figsize'] = (10, 10)
plt.rcParams['image.interpolation'] = 'nearest'
plt.rcParams['image.cmap'] = 'gray'
import os
# ... Rest of the code...
Can someone please help me to resolve this error?
有人可以帮我解决这个错误吗？
采纳答案by beezz
You have to run your script with ipython:
你必须用 ipython 运行你的脚本：
$ ipython python/my_test_imagenet.py
Then get_ipythonwill be already in global context.
然后get_ipython将已经在全球范围内。
Note: Importing it via from IPython import get_ipythonin ordinary shell pythonwill not work as you really need ipythonrunning.
注意：通过from IPython import get_ipython在普通 shell 中导入它是python行不通的，因为您确实需要ipython运行。
回答by Shital Shah
If your intention is to run converted .py file notebook then you should just comment out get_ipython()statements. The matlibplot output can't be shown inside console so you would have some work to do . Ideally, iPython shouldn't have generated these statements. You can use following to show plots:
如果您打算运行转换后的 .py 文件笔记本，那么您应该只注释掉get_ipython()语句。matlibplot 输出无法显示在控制台中，因此您需要做一些工作。理想情况下，iPython 不应该生成这些语句。您可以使用以下内容来显示图表：
plt.show(block=True)
回答by Vincenzooo
get_ipythonis available only if the IPython module was imported that happens implicitly if you run ipython shell (or Jupyter notebook).
get_ipython仅当您运行 ipython shell（或 Jupyter notebook）时隐式导入 IPython 模块时才可用。
If not, the import will fail, but you can still import it explicitly with:
如果没有，导入将失败，但您仍然可以使用以下命令显式导入它：
from IPython import get_ipython
