如何清除ipython中的变量？
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How to clear variables in ipython?
提问by grasshopper
Sometimes I rerun a script within the same ipython session and I get bad surprises when variables haven't been cleared. How do I clear all variables? And is it possible to force this somehow every time I invoke the magic command %run?
有时我在同一个 ipython 会话中重新运行一个脚本，当变量没有被清除时，我会感到意外。如何清除所有变量？每次调用魔术命令 %run 时，是否可以以某种方式强制执行此操作？
Thanks
谢谢
采纳答案by aisbaa
%resetseems to clear defined variables.
%reset似乎清除了定义的变量。
回答by SeF
EDITED after @ErdemKAYA comment.
在@ErdemKAYA 评论后编辑。
To erase a variable, use the magic command:
要擦除变量，请使用魔术命令：
%reset_selective <regular_expression>
The variables that are erased from the namespace are the one matching the given <regular_expression>.
从命名空间中删除的变量是与给定的<regular_expression>.
Therefore
所以
%reset_selective -f a
will erase allthe variables containing an a.
将删除所有包含a.
Instead, to erase only aand not aa:
相反，只擦除a而不是aa：
In: a, aa = 1, 2
In: %reset_selective -f "^a$"
In: a # raise NameError
In: aa # returns 2
see as well %reset_selective?for more examples and https://regexone.com/for a regex tutorial.
%reset_selective?有关更多示例，请参见https://regexone.com/以获取正则表达式教程。
To erase all the variables in the namespace see:
要擦除命名空间中的所有变量，请参阅：
%reset?
回答by Carl
Adding the following lines to a new script will clear all variables each time you rerun the script:
每次重新运行脚本时，将以下行添加到新脚本中将清除所有变量：
from IPython import get_ipython
get_ipython().magic('reset -sf')
To make life easy, you can add them to your default template.
为了让生活更轻松，您可以将它们添加到默认模板中。
In Spyder: Tools>Preferences>Editor>Edit template
在 Spyder 中： Tools>Preferences>Editor>Edit template
回答by Joop
In iPython you can remove a singlevariable like this:
在 iPython 中，您可以像这样删除单个变量：
del x
回答by Sirish
An quit option in the Console Panel will also clear all variables in variable explorer
控制台面板中的退出选项也将清除变量资源管理器中的所有变量
*** Note that you will be loosing all the code which you have run in Console Panel
*** 请注意，您将丢失在控制台面板中运行的所有代码
回答by Babu K.M.
I tried
我试过
%reset -f
and cleared all the variables and contents without prompt. -fdoes the force action on the given command without prompting for yes/no.
并在没有提示的情况下清除所有变量和内容。-f在不提示yes/no 的情况下对给定命令执行强制操作。
Wish this helps.. :)
希望这有帮助.. :)
回答by Devarshi Mandal
Apart from the methods mentioned earlier. You can also use the command del to remove multiple variables
除了前面提到的方法。也可以使用命令 del 删除多个变量
del variable1,variable2
