blocks|key|1281934|text|确保您已经安装了pyreadline库。制表符补全和其他IPython功能都需要它-在Windows中，它不随IPython包一起提供，您必须单独安装它-|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1281935|>+pip+install+pyreadline|code-block|syntax|javascript|1281936|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/pyreadline/pyreadline^0|8|A|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

Be sure you have installed the <a href="https://github.com/pyreadline/pyreadline" rel="noreferrer">pyreadline</a> library. It is needed for tab completion and other IPython functions - in Windows it doesn't come with the IPython package and you have to install it separately - 

<pre><code>&gt; pip install pyreadline
</code></pre>

blocks|key|1067864|text|如果任何人正在使用最新的7.19.0并且自动完成功能不起作用，请尝试将jedi降级为0.17.2|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1067865|pip+install+jedi==0.17.2|code-block|syntax|javascript|1067866|详情请参见https://github.com/ipython/ipython/issues/12740。|1067867|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/ipython/ipython/issues/12740^0|C|6|Z|4|16|6|0|0|5|1B|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]|$9|X|A|Y|B|C]|$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|11|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|12|8|@]|D|@$9|13|A|14|1|15]]|E|$]]|$1|M|3|-4|5|6|7|16|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

In case anyone is using the recent <code>7.19.0</code> and autocomplete does not work, try downgrading <code>jedi</code> to <code>0.17.2</code>:
<pre><code>pip install jedi==0.17.2
</code></pre>
See <a href="https://github.com/ipython/ipython/issues/12740" rel="noreferrer">https://github.com/ipython/ipython/issues/12740</a> for details.

blocks|key|1282654|text|pip+uninstall+jedi+--yes|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1282655|和|unstyled|1282656|pip+install+pyreadline|1282657|目前使用Jupyter笔记本的Ipython不需要绝地武士。因此，您只需使用上面的命令卸载它即可。|1282658|我从here那里得到的。|offset|length|1282659|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/40536560/ipython-and-jupyter-autocomplete-not-working/65579764#65579764^0|0|0|0|0|2|4|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|X|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|Y|8|@]|9|@]|A|$B|C]]|$1|I|3|J|5|F|7|Z|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|10|8|@]|9|@$M|11|N|12|1|13]]|A|$]]|$1|O|3|-4|5|F|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

<pre><code>pip uninstall jedi --yes
</code></pre>
and
<pre><code>pip install pyreadline
</code></pre>
The current Ipython with the Jupyter notebook doesn't require jedi.. So you have to just uninstall it with the above command.
I got it from <a href="https://stackoverflow.com/questions/40536560/ipython-and-jupyter-autocomplete-not-working/65579764#65579764">here</a>.

blocks|key|1281996|text|您的ipythonrc文件可能已过期。尝试运行|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1281997|ipython+-upgrade|code-block|syntax|javascript|1281998|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Your ipythonrc file may be out of date.
Try running

<pre><code>ipython -upgrade
</code></pre>

blocks|key|1067330|text|pip告诉我我安装了pyreadline+1.7.1版本|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1067331|C:\Users\me>pip+freeze+%7C+grep+readline
pyreadline==1.7.1|code-block|syntax|javascript|1067332|升级pyreadline为我解决了这个问题：|1067333|C:\Users\me>pip+install+--upgrade+pyreadline

C:\Users\me>pip+freeze+%7C+grep+readline
pyreadline==2.0|1067334|entityMap^0|0|3|0|0|2|A|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|M|3|N|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|P|$]]

<code>pip</code> told me I had pyreadline version 1.7.1 installed

<pre><code>C:\Users\me&gt;pip freeze | grep readline
pyreadline==1.7.1
</code></pre>

Upgrading <code>pyreadline</code> fixed it for me:

<pre><code>C:\Users\me&gt;pip install --upgrade pyreadline

C:\Users\me&gt;pip freeze | grep readline
pyreadline==2.0
</code></pre>

blocks|key|1282417|text|降级iPython做到了这一点。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1282418|pip+install+--upgrade+ipython==5.8.0|code-block|syntax|javascript|1282419|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Downgrading iPython did the trick.

<pre><code>pip install --upgrade ipython==5.8.0
</code></pre>

blocks|key|1282217|text|经典的“你有没有试过一次又一次地关掉它”对我来说很管用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1282218|pip+uninstall+ipython
pip+install+ipython|code-block|syntax|javascript|1282219|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

The classic 'have you tried turning it off and on again' worked for me.

<pre><code>pip uninstall ipython
pip install ipython
</code></pre>

blocks|key|1067799|text|我遇到了这个问题。我通过降级python-parso包解决了这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1067800|降级python-parso包(0.8.0-1+=>+0.6.2-1)|1067801|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I had this problem.
I solved by downgrade the python-parso package
downgrading the python-parso package (0.8.0-1 =&gt; 0.6.2-1)

blocks|key|1282619|text|在我的情况下，这绝对是可行的|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1282620|conda+install+ipython++
pip+install+jedi==0.17.2|code-block|syntax|javascript|1282621|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This should definitely work as it worked in my case
<pre><code>conda install ipython 
pip install jedi==0.17.2
</code></pre>

blocks|key|1067266|text|到目前为止，在OSX上，pip安装的ipython不提供制表符补全，pyreadline+release.py被破坏。WFM内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1067267|easy_install+ipython+readline|code-block|syntax|javascript|1067268|YMMV.|1067269|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

As of right now, on a OSX, pip installed ipython doesn't give tab completion, pyreadline release.py is busted .. what WFM:

<pre><code>easy_install ipython readline
</code></pre>

YMMV.

blocks|key|1067453|text|我意识到这是一个非常古老的问题，但上面的答案对我来说都不起作用(这是当你在谷歌上搜索这种性质的问题时得到的第一个结果)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1067454|值得一提的是，这并不是CentOS独有的，我在运行Python6.5和Python2.7时遇到了问题|1067455|下面是我所做的：|1067456|apt-get/yum+install+ncurses-devel
#If+you+want+history+in+iPython:
apt-get/yum+install+sqlite-devel
easy_install+ipython+readline
ipython

In+[1]:+from+
Display+all+391+possibilities?+(y+or+n)|code-block|syntax|javascript|1067457|如果您没有-devel包，那么当需要链接它们并构建鸡蛋时，您的安装将失败。希望这对其他人有帮助！|1067458|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Q|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|R|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

I realize this is a really old question, but none of the answers above worked for me (And this is the first hit you get when you google a question of this nature).

I should mention that this is NOT exclusive to windows, I had the problem running CentOS 6.5 and Python 2.7

Here is what I did:

<pre><code>apt-get/yum install ncurses-devel
#If you want history in iPython:
apt-get/yum install sqlite-devel
easy_install ipython readline
ipython

In [1]: from 
Display all 391 possibilities? (y or n)
</code></pre>

If you don't have the -devel packages, your install will fail when it comes time to link them and build the eggs.. Hope this helps others!

blocks|key|1282136|text|ipython需要Pyreadline。安装pyreadline。这是在Windows7中完成的。获取pyreadline+zip，pyreadline-master.zip，unzip。在powershell中，将目录更改为解压缩的pyreadline，确保在Path中设置了python，然后输入命令python+setup.py+install。这将安装C:\Python27\Lib\site-packages中的pyreadline|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1282137|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/pyreadline/pyreadline/archive/master.zip^0|48|N|1U|L|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]]|D|@$9|Q|A|R|1|S]]|E|$]]|$1|F|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]]]

Pyreadline is needed by ipython. Install pyreadline. This was done in Windows 7. Get pyreadline zip, <a href="https://github.com/pyreadline/pyreadline/archive/master.zip" rel="nofollow">pyreadline-master.zip</a>, unzip. In powershell change directory into uzipped pyreadline, make sure python is set in Path, and enter command<code>python setup.py install</code> This will intall pyreadline in C:\Python27\Lib\site-packages

blocks|key|1282270|text|我遇到了这个问题，我知道我已经为我正在寻找的模块安装了pip。执行$+ipython+--init为我解决了这个问题。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1282271|entityMap^0|X|G|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

I had this problem and knew that I had the pip installed for the module I was looking for. Performing <code>$ ipython --init</code> solved the problem for me.

blocks|key|1067626|text|在我的情况下，我不得不使用mv+~/.ipython{,.bak}。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1067627|entityMap^0|D|K|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

I had to <code>mv ~/.ipython{,.bak}</code> in my case.

blocks|key|1067679|text|如果您使用Jupyter+notebook，并且在尝试了本文中建议的所有步骤后仍然可以使用Tab自动完成功能，那么您可能需要检查是否正在尝试在函数定义中使用Tab自动完成功能。如果您的import语句是如下所示函数的一部分，则不会获得Tab自动完成。您需要将import语句放在函数之外，并在请求包上的自动完成之前执行它们一次。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1067680|def+myfunction():
++++import+pandas+as+pd
++++import+numpy+as+np

++++a+=+pd.DataFrame(np.random.normal(1,3,+(4,4))
++++return+a|code-block|syntax|javascript|1067681|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If you use Jupyter notebook and you still did get Tab auto-complete working after you tried all the steps suggested in the post here, you might want to check if you are trying to use the Tab auto-completion within a function definition. Ifyour import statements are part of the function such as below, you will not get the Tab auto-completion. You need to put the import statements outside the function and also execute them once before asking for auto-completion on the packages.

<pre><code>def myfunction():
 import pandas as pd
 import numpy as np

 a = pd.DataFrame(np.random.normal(1,3, (4,4))
 return a
</code></pre>

blocks|key|1282478|text|我在numpy库中也遇到了同样的问题。该问题与特定版本的ipython或jupyter笔记本有关，只需更新ipython或jupyter即可解决此问题。如果您使用的是像anaconda或miniconda这样的conda环境，那么可以使用以下命令在该环境中更新ipython|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1282479|conda+update+ipython|code-block|syntax|javascript|1282480|如果是anaconda，您还需要更新qtconsole|1282481|conda+update+qtconsole|1282482|有时anaconda会限制ipython的更新，然后尝试|1282483|conda+update+-all|1282484|如果您不使用环境，则使用pip直接更新|1282485|pip+update+ipython|1282486|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|Y|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|10|8|@]|9|@]|A|$]]|$1|Q|3|R|5|D|7|11|8|@]|9|@]|A|$E|F]]|$1|S|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|T|$]]

I faced the same problem with the numpy library. The issue is with the particular version of ipython or jupyter notebook and it is resolved by simply updating ipython or jupyter.
If you are using a conda environment like anaconda or miniconda then update ipython in that environment by using

<pre><code>conda update ipython
</code></pre>

In case of anaconda you also need to update the qtconsole

<pre><code>conda update qtconsole
</code></pre>

Sometimes anaconda constraints the update of ipython then try

<pre><code>conda update -all
</code></pre>

If you are not using a environment then directly update using pip

<pre><code>pip update ipython
</code></pre>

blocks|key|1282724|text|我通过安装jedi-language-server解决了我的问题：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1282725|pip+install+-U+jedi-language-server|code-block|syntax|javascript|1282726|PS，我是在虚拟环境中从Conda安装Ipython的，并且在环境被激活时使用了上面的命令。|1282727|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I solved my issue by installing jedi-language-server:
<pre><code>pip install -U jedi-language-server
</code></pre>
PS, I was installed Ipython from Conda in a virtual env and used the above command when the env was activated.

Tab completion on IPython seems not to be working. For example,

<pre><code>import numpy
numpy.&lt;tab&gt;
</code></pre>

simply adds a tab.

<pre><code>import numpy
num&lt;tab&gt;
</code></pre>

just adds a tab, too. Could you please suggest some possible causes for this problem? I am running Windows 7 and Python 2.6.5.

`ipython` tab autocomplete does not work on imported module

IPython上的制表符补全功能似乎不起作用。例如,import numpynumpy.<tab>只需添加一个选项卡。import numpynum<tab>也只是添加了一个选项卡。你能建议一下这个问题的一些可能的原因吗？我运行的是Windows7和Python 2.6.5。

问`ipython`标签自动完成在导入的模块上不起作用
EN

回答 17

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问`ipython`标签自动完成在导入的模块上不起作用EN

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问`ipython`标签自动完成在导入的模块上不起作用
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