Spyder打不开，AttributeError: module ‘pandas‘ has no attribute ‘core‘

Spyder打不开了怎么办，先不要慌。在Anaconda Prompt 终端输入：spyder --new-instance

spyder --new-instance

 查看是什么原因打不开，我的是：

Traceback (most recent call last):
  File "C:UsersgeAnaconda3Scriptsspyder-script.py", line 5, in
    sys.exit(spyder.app.start.main())
  File "C:UsersgeAnaconda3libsite-packagesspyderappstart.py", line 114, in main
    from spyder.app import mainwindow
  File "C:UsersgeAnaconda3libsite-packagesspyderappmainwindow.py", line 162, in
    from spyder.utils.environ import WinUserEnvDialog
  File "C:UsersgeAnaconda3libsite-packagesspyderutilsenviron.py", line 20, in
    from spyder.widgets.variableexplorer.collectionseditor import CollectionsEditor
  File "C:UsersgeAnaconda3libsite-packagesspyderwidgetsvariableexplorercollectionseditor.py", line 46, in
    from spyder.widgets.variableexplorer.importwizard import ImportWizard
  File "C:UsersgeAnaconda3libsite-packagesspyderwidgetsvariableexplorerimportwizard.py", line 26, in
    import pandas as pd
  File "C:UsersgeAnaconda3libsite-packagespandas__init__.py", line 39, in
    from pandas.core.api import *
  File "C:UsersgeAnaconda3libsite-packagespandascoreapi.py", line 10, in
    from pandas.core.groupby import Grouper
  File "C:UsersgeAnaconda3libsite-packagespandascoregroupby.py", line 40, in
    from pandas.core.frame import DataFrame
  File "C:UsersgeAnaconda3libsite-packagespandascoreframe.py", line 72, in
    from pandas.core.series import Series
  File "C:UsersgeAnaconda3libsite-packagespandascoreseries.py", line 51, in
    import pandas.core.strings as strings
AttributeError: module 'pandas' has no attribute 'core'

Traceback (most recent call last):
  File "C:UsersgeAnaconda3Scriptsspyder-script.py", line 5, in 
    sys.exit(spyder.app.start.main())
  File "C:UsersgeAnaconda3libsite-packagesspyderappstart.py", line 114, in main
    from spyder.app import mainwindow
  File "C:UsersgeAnaconda3libsite-packagesspyderappmainwindow.py", line 162, in 
    from spyder.utils.environ import WinUserEnvDialog
  File "C:UsersgeAnaconda3libsite-packagesspyderutilsenviron.py", line 20, in 
    from spyder.widgets.variableexplorer.collectionseditor import CollectionsEditor
  File "C:UsersgeAnaconda3libsite-packagesspyderwidgetsvariableexplorercollectionseditor.py", line 46, in 
    from spyder.widgets.variableexplorer.importwizard import ImportWizard
  File "C:UsersgeAnaconda3libsite-packagesspyderwidgetsvariableexplorerimportwizard.py", line 26, in 
    import pandas as pd
  File "C:UsersgeAnaconda3libsite-packagespandas__init__.py", line 39, in 
    from pandas.core.api import *
  File "C:UsersgeAnaconda3libsite-packagespandascoreapi.py", line 10, in 
    from pandas.core.groupby import Grouper
  File "C:UsersgeAnaconda3libsite-packagespandascoregroupby.py", line 40, in 
    from pandas.core.frame import DataFrame
  File "C:UsersgeAnaconda3libsite-packagespandascoreframe.py", line 72, in 
    from pandas.core.series import Series
  File "C:UsersgeAnaconda3libsite-packagespandascoreseries.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

删掉之后发现可以打开spyder了，再把pandas装回来：

pip install pandas

运气好的话安装pandas一次成功不报错，但是我这里抛出

Installing collected packages: pytz, python-dateutil, pandas
  Attempting uninstall: pytz
    WARNING: Ignoring invalid distribution -atplotlib (c:usersgeanaconda3libsite-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是很多库的依赖项，想要卸载pytz可以在Anaconda3Libsite-packages下找到pytz-2016.6.1-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