所有工作正常,直到我尝试:
from collections import OrderedDict
from IPython.display import (display, clear_output, YouTubeVideo)
from IPython.html.widgets import DropdownWidget
如果我重新启动内核会显示以下消息:
/usr/local/lib/python3.4/dist-packages/IPython/html.py:14: ShimWarning: The `IPython.html` package has been deprecated. You should import from `notebook` instead. `IPython.html.widgets` has moved to `ipywidgets`.
"`IPython.html.widgets` has moved to `ipywidgets`.", ShimWarning)
然后我尝试通过以下方式更改第三行(问题):
from ipywidgets import DropdownWidgets
但Jupyter回答:ImportError: cannot import name 'DropdownWidget'
有人可以帮我吗?
接下来是部分回答
好吧,我在网页上搜索ipywidgets installation这个问题和问题的答案。
我尝试下一个示例并正常工作:
import numpy as np
url = "http://donnees.ville.montreal.qc.ca/dataset/f170fecc-18db-44bc-b4fe-5b0b6d2c7297/resource/ec12447d-6b2a-45d0-b0e7-fd69c382e368/download/2013.csv"
df = pd.read_csv(url, index_col='Date', parse_dates=True, dayfirst=True)
from ipywidgets import interact
@interact
def plot(n=(1, 30)):
pd.rolling_mean(df['Berri1'], n).dropna().plot()
plt.ylim(0, 8000)
plt.show()
但jupyter声称我必须这样做:jupyter nbextension enable --py --sys-prefix widgetsnbextension
我去终端服从建议,jupyter回应:
Configure an nbextension to be automatically loaded
Options
-------
Arguments that take values are actually convenience aliases to full
Configurables, whose aliases are listed on the help line. For more information
on full configurables, see '--help-all'.
--debug
set log level to logging.DEBUG (maximize logging output)
-y
Answer yes to any questions instead of prompting.
--generate-config
generate default config file
--section=<Unicode> (EnableNBExtensionApp.section)
Default: 'notebook'
Which config section to add the extension to. 'common' will affect all
pages.
To see all available configurables, use `--help-all`
[EnableNBExtensionApp] CRITICAL | Bad config encountered during initialization:
[EnableNBExtensionApp] CRITICAL | Unrecognized flag: '--py'
在1中看一下提示:jupyter nbextension enable --py widgetsnbextension
,但在控制台中建议jupyter nbextension enable --py --sys-prefix widgetsnbextension
。请注意,虽然存在一些差异,但在两种情况下都会出现与--py
选项
在这一刻,问题得到了部分回答。