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问题[ipython](ubuntu)

Martin Hope
sumer fattoum
Asked: 2020-12-17 15:24:41 +0800 CST
  • 0

我使用 python 3.7，但也安装了 3.6 和 2.7，我使用的是 Ubuntu 16.04 LTS。

我将 python 的顺序更改为 python 2.7 仍然无法正常工作，我在 VMware 上使用它。我想我对 python3 进行了更改，我安装了很多包。

我正在尝试运行 jupyter notebook，但我无法弄清楚可能导致问题的原因。

当我尝试从终端运行 ipython 时，它显示：

stealth@ubuntu:~/Desktop$ ipython
Traceback (most recent call last):
  File "/home/stealth/.local/bin/ipython", line 7, in <module>
    from IPython import start_ipython
  File "/home/stealth/.local/lib/python3.7/site-packages/IPython/__init__.py", line 55, in <module>
    from .core.application import Application
  File "/home/stealth/.local/lib/python3.7/site-packages/IPython/core/application.py", line 25, in <module>
    from IPython.core import release, crashhandler
  File "/home/stealth/.local/lib/python3.7/site-packages/IPython/core/crashhandler.py", line 27, in <module>
    from IPython.core import ultratb
  File "/home/stealth/.local/lib/python3.7/site-packages/IPython/core/ultratb.py", line 116, in <module>
    from IPython.utils import path as util_path
  File "/home/stealth/.local/lib/python3.7/site-packages/IPython/utils/path.py", line 17, in <module>
    from IPython.utils.process import system
  File "/home/stealth/.local/lib/python3.7/site-packages/IPython/utils/process.py", line 19, in <module>
    from ._process_posix import system, getoutput, arg_split, check_pid
  File "/home/stealth/.local/lib/python3.7/site-packages/IPython/utils/_process_posix.py", line 23, in <module>
    import pexpect
  File "/usr/lib/python3/dist-packages/pexpect/__init__.py", line 75, in <module>
    from .pty_spawn import spawn, spawnu
  File "/usr/lib/python3/dist-packages/pexpect/pty_spawn.py", line 15, in <module>
    from .spawnbase import SpawnBase
  File "/usr/lib/python3/dist-packages/pexpect/spawnbase.py", line 218
    def expect(self, pattern, timeout=-1, searchwindowsize=-1, async=False):
                                                                   ^
SyntaxError: invalid syntax
python ipython syntax
Martin Hope
Icetroid
Asked: 2020-12-09 00:10:31 +0800 CST
  • 1

我正在尝试在 Ubuntu 20.04.1 LTS 上安装 Torch http://torch.ch/docs/getting-started.html
当我运行时

cd ~/torch; bash install-deps;

它会产生此错误：

Package ipython is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'ipython' has no installation candidate

如何安装 ipython？

software-installation apt ipython
Martin Hope
daniel blanco
Asked: 2019-06-14 00:05:28 +0800 CST
  • 0

我已经清楚地遵循了这里的说明https://ipython.readthedocs.io/en/stable/install/install.html#dependencies

在下面运行这些命令。

pip3 install ipython
pip3 show ipython
pip3 install pexpect jedi pygments setuptools decorator prompt-toolkit pickleshare backcall traitlets

我仍然收到此错误

>>> %precision 2
  File "<stdin>", line 1
    %precision 2
    ^
SyntaxError: invalid syntax

提前感谢您的帮助

python ipython
Martin Hope
Stefan
Asked: 2018-12-19 05:47:26 +0800 CST
  • 3

我想使用 ptipython 来运行 Web 驱动程序。

所以我首先使用pip install ipython, 和 ptipython 以相同的方式安装了 iPython。我在使用提示工具包版本时遇到了一些问题，但我以某种方式解决了它们。

现在，当我运行 ipython 时，它开始时没有问题，但是当我运行 ptipython 时，这是我得到的错误：

Traceback (most recent call last):
  File "/usr/local/bin/ptipython", line 11, in <module>
    sys.exit(run())
  File "/usr/local/lib/python2.7/dist-packages/ptpython/entry_points/run_ptipython.py", line 41, in run
    from ptpython.ipython import embed
  File "/usr/local/lib/python2.7/dist-packages/ptpython/ipython.py", line 14, in <module>
    from prompt_toolkit.completion import PathCompleter, WordCompleter
ImportError: cannot import name PathCompleter

我怎样才能解决这个问题？

python ipython 18.10
Martin Hope
gl3yn
Asked: 2018-05-28 00:07:07 +0800 CST
  • 1

试图遍历一个文件夹。我正在研究 ipython3，在终端中打开。这是代码（在 python 3.6.4 中）：

for filename in os.listdir('.'):
    for file in filename:
       with open(os.path.join('.',file), 'r') as f:
            print(len(f))

但是我得到这个错误。

FileNotFoundError                         Traceback (most recent call last)
<ipython-input-6-1702c8aca957> in <module>()
  1 for filename in os.listdir('.'):
  2     for file in filename:
----> 3         with open(os.path.join('.',file), 'r') as f:
  4             print(len(f))
  5 

FileNotFoundError: [Errno 2] No such file or directory: './d'

路径中添加了“d”，但找不到目录。Jupypter QtConsole 也是如此。

command-line paths python3 ipython
Martin Hope
Imran
Asked: 2017-06-20 07:41:22 +0800 CST
  • 1

如果我在我的 Ubuntu 16.04 机器上的 ipython2/3 中执行任何系统命令，我会收到权限被拒绝错误，如下所示：

In [1]: ls
--------------------------------------------------------------------------
PermissionError                           Traceback (most recent call last)
<ipython-input-1-5b21b94dda0e> in <module>()
----> 1 get_ipython().magic('ls ')

我不需要在 Ubuntu 14.04 中做任何特别的事情。我已经安装了 ipython2 和 ipython3

pip2 install ipython --user
pip3 install ipython --user

sudo我还尝试使用as在系统范围内安装它

sudo pip2 install ipython
sudo pip3 install ipython

但问题仍然存在。我在 jupyter notebook 中没有遇到这个问题。

如何在 IPython 中使用系统命令？

ipython
Martin Hope
Ralf Rafael Frix
Asked: 2016-07-16 10:50:06 +0800 CST
  • 1

我最近使用以下命令在我的 Ubuntu 14.04 中安装了 IPython

sudo apt-get install spyder

我的问题是我不能使用 IPython 控制台：

在此处输入图像描述

我所看到的只是 Spyder 右下角的一个灰色空白区域。我怎样才能解决这个问题？

更新：

  1. ipython-qtconsole已安装在我的系统中，因此它不是导致问题的原因。

在此处输入图像描述

  1. python-zmq也已经安装了。

在此处输入图像描述

ipython
Martin Hope
Wanderer
Asked: 2016-04-18 19:09:50 +0800 CST
  • 0

我在我的 Ubuntu 12.04 中安装了 Apache spark(1.5.2) 和 IPython(0.12.1) 笔记本。在专门为 PySpark 创建 IPython 配置文件之前，我想安装 scala 构建工具。我按照以下查询来构建 sbt。

wget http://apt.typesafe.com/repo-deb-build-0002.deb `

#Install the repository
sudo dpkg -i repo-deb-build-0002.deb

#Refresh
sudo apt-get update

运行 apt-get update 时出现以下错误。

user@user-VirtualBox:~/spark$ sudo apt-get update
E: Malformed line 2 in source list /etc/apt/sources.list.d/sbt.list (dist)
E: The list of sources could not be read.

我在网上搜索以解决此问题。根据网上的说明，问题出在第 2 行，我评论了第 2 行，即

# deb http://in.archive.ubuntu.com/ubuntu/ precise main restricted
deb-src http://in.archive.ubuntu.com/ubuntu/ precise main restricted

下面是/etc/apt/sources.list的实际输出

$ cat /etc/apt/sources.list

# deb cdrom:[Ubuntu 12.04.4 LTS _Precise Pangolin_ - Release amd64 (20140204)]/ dists/precise/main/binary-i386/
# deb cdrom:[Ubuntu 12.04.4 LTS _Precise Pangolin_ - Release amd64 (20140204)]/ dists/precise/restricted/binary-i386/
# deb cdrom:[Ubuntu 12.04.4 LTS _Precise Pangolin_ - Release amd64 (20140204)]/ precise main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://in.archive.ubuntu.com/ubuntu/ precise main restricted
deb-src http://in.archive.ubuntu.com/ubuntu/ precise main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb http://in.archive.ubuntu.com/ubuntu/ precise-updates main restricted
deb-src http://in.archive.ubuntu.com/ubuntu/ precise-updates main restricted
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://in.archive.ubuntu.com/ubuntu/ precise universe
deb-src http://in.archive.ubuntu.com/ubuntu/ precise universe
deb http://in.archive.ubuntu.com/ubuntu/ precise-updates universe
deb-src http://in.archive.ubuntu.com/ubuntu/ precise-updates universe
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 
## team, and may not be under a free licence. Please satisfy yourself as to 
## your rights to use the software. Also, please note that software in 
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://in.archive.ubuntu.com/ubuntu/ precise multiverse
deb-src http://in.archive.ubuntu.com/ubuntu/ precise multiverse
deb http://in.archive.ubuntu.com/ubuntu/ precise-updates multiverse
deb-src http://in.archive.ubuntu.com/ubuntu/ precise-updates multiverse
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://in.archive.ubuntu.com/ubuntu/ precise-backports main restricted universe multiverse
deb-src http://in.archive.ubuntu.com/ubuntu/ precise-backports main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu precise-security main restricted
deb-src http://security.ubuntu.com/ubuntu precise-security main restricted
deb http://security.ubuntu.com/ubuntu precise-security universe
deb-src http://security.ubuntu.com/ubuntu precise-security universe
deb http://security.ubuntu.com/ubuntu precise-security multiverse
deb-src http://security.ubuntu.com/ubuntu precise-security multiverse
## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu precise partner
# deb-src http://archive.canonical.com/ubuntu precise partner
## This software is not part of Ubuntu, but is offered by third-party
## developers who want to ship their latest software.
deb http://extras.ubuntu.com/ubuntu precise main
# deb-src http://extras.ubuntu.com/ubuntu precise main

评论后，我仍然在源列表/etc/apt/sources.list.d/sbt.list错误中收到 Malformed line 2 。

我该如何解决这个问题？因为我需要解决这个问题并且需要在 IPython 中创建配置文件。

ipython