Spyder如果打不开怎么办？别慌。Anaconda Prompt 终端输入：spyder --new-instance

spyder --new-instance

看看为什么打不开，我的是:

Traceback (most recent call last):
File "C:\Users\ge\Anaconda3\Scripts\spyder-script.py", line 5, in
sys.exit(spyder.app.start.main())
File "C:\Users\ge\Anaconda3\lib\site-packages\spyder\app\start.py", line 114, in main
from spyder.app import mainwindow
File "C:\Users\ge\Anaconda3\lib\site-packages\spyder\app\mainwindow.py", line 162, in
from spyder.utils.environ import WinUserEnvDialog
File "C:\Users\ge\Anaconda3\lib\site-packages\spyder\utils\environ.py", line 20, in
from spyder.widgets.variableexplorer.collectionseditor import CollectionsEditor
File "C:\Users\ge\Anaconda3\lib\site-packages\spyder\widgets\variableexplorer\collectionseditor.py", line 46, in
from spyder.widgets.variableexplorer.importwizard import ImportWizard
File "C:\Users\ge\Anaconda3\lib\site-packages\spyder\widgets\variableexplorer\importwizard.py", line 26, in
import pandas as pd
File "C:\Users\ge\Anaconda3\lib\site-packages\pandas\__init__.py", line 39, in
from pandas.core.api import *
File "C:\Users\ge\Anaconda3\lib\site-packages\pandas\core\api.py", line 10, in
from pandas.core.groupby import Grouper
File "C:\Users\ge\Anaconda3\lib\site-packages\pandas\core\groupby.py", line 40, in
from pandas.core.frame import DataFrame
File "C:\Users\ge\Anaconda3\lib\site-packages\pandas\core\frame.py", line 72, in
from pandas.core.series import Series
File "C:\Users\ge\Anaconda3\lib\site-packages\pandas\core\series.py", line 51, in
import pandas.core.strings as strings
AttributeError: module 'pandas' has no attribute 'core'

Traceback (most recent call last):   File "C:\Users\ge\Anaconda3\Scripts\spyder-script.py", line 5, in      sys.exit(spyder.app.start.main())   File "C:\Users\ge\Anaconda3\lib\site-packages\spyder\app\start.py", line 114, in main     from spyder.app import mainwindow   File "C:\Users\ge\Anaconda3\lib\site-packages\spyder\app\mainwindow.py", line 162, in      from spyder.utils.environ import WinUserEnvDialog   File "C:\Users\ge\Anaconda3\lib\site-packages\spyder\utils\environ.py", line 20, in      from spyder.widgets.variableexplorer.collectionseditor import CollectionsEditor   File "C:\Users\ge\Anaconda3\lib\site-packages\spyder\widgets\variableexplorer\collectionseditor.py", line 46, in      from spyder.widgets.variableexplorer.importwizard import ImportWizard   File "C:\Users\ge\Anaconda3\lib\site-packages\spyder\widgets\variableexplorer\importwizard.py", line 26, in      import pandas as pd   File "C:\Users\ge\Anaconda3\lib\site-packages\pandas\__init__.py", line 39, in      from pandas.core.api import *   File "C:\Users\ge\Anaconda3\lib\site-packages\pandas\core\api.py", line 10, in      from pandas.core.groupby import Grouper   File "C:\Users\ge\Anaconda3\lib\site-packages\pandas\core\groupby.py", line 40, in      from pandas.core.frame import DataFrame   File "C:\Users\ge\Anaconda3\lib\site-packages\pandas\core\frame.py", line 72, in      from pandas.core.series import Series   File "C:\Users\ge\Anaconda3\lib\site-packages\pandas\core\series.py", line 51, in      import pandas.core.strings as strings AttributeError: module 'pandas' has no attribute 'core'

抛出AttributeError: module 'pandas' has no attribute 'core'

这时可以把pandas先卸载，进入spyder要紧。输入命令：

pip uninstall pandas

删除后，可以打开spyder了，再把pandas装回来：

pip install pandas

运气好的话安装pandas成功不报错，但我在这里抛出

Installing collected packages: pytz, python-dateutil, pandas
Attempting uninstall: pytz
WARNING: Ignoring invalid distribution -atplotlib (c:\users\ge\anaconda3\lib\site-packages)
Found existing installation: pytz 2016.10
ERROR: Cannot uninstall 'pytz'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

显示pytz卸载不了，pytz它是许多库的依赖项，想卸载pytz可以在Anaconda3\Lib\site-packages下找到pytz-2016.6.-py3.5.egg-info去手动卸载

 这时安装pandas就不会报错了

回到spyder

spyder是可以打开了，但是弹出这个弹窗

 重装nbconvert就好了