无法更新到 Spyder 4.0.0

Question

我在 Windows 10 下，64 位。

我多次尝试使用 Anaconda Prompt 和 Anaconda Navigator 更新 Spyder 4.0.0。它失败了。我卸载了 Anaconda 并重新安装了它。

然后我以管理员身份运行 Anaconda Prompt 并执行：

conda update spyder

Spyder 的版本是 3.3.6。我试过这个命令：

conda install spyder=4.0.0

提示返回：

Collecting package metadata (current_repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.
Collecting package metadata (repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: |
Found conflicts! Looking for incompatible packages.
This can take several minutes.  Press CTRL-C to abort.
Finding conflicts:   0%|                                                                       | 0/360 [00:00<?, ?it/s]|Examining hpack:  42%|??????????????????????????                                   | 151/360 [00:00<00:00, 1468.80it/s]/Examining jupyter_core:  56%|???????????????????????????????                       | 203/360 [00:00<00:00, 1468.80it/-
- mparing specs that have this dependency:   0%|                                                | 0/20 [00:00<?, ?it/\
Examining jupyter_core:  57%|???????????????????????????????                       | 204/360 [00:20<00:00, 1468.80it/s]|| mparing specs that have this dependency:  10%|????                                    | 2/20 [00:18<02:47,  9.32s/i/ |
Comparing specs that have this dependency:  55%|??????????????????????                 | 11/20 [01:07<00:55,  6.16s/i-
Examining tbb:  73%|????????????????????????????????????????????????                 | 262/360 [02:35<01:19,  1.24it/s]-Examining jedi:  81%|????????????????????????????????????????????????????            | 292/360 [02:35<00:54,  1.24it/- \
Examining jupyter_client:  90%|?????????????????????????????????????????????????     | 323/360 [06:03<04:23,  7.12s/i\ \
Comparing specs that have this dependency:   7%|???                                     | 1/15 [00:10<02:27, 10.51s/i-
Comparing specs that have this dependency:  13%|??????                                  | 2/15 [00:21<02:19, 10.73s/i/ |
Comparing specs that have this dependency:  27%|???????????                             | 4/15 [00:31<01:25,  7.77s/i\ \
Finding conflict paths:   0%|                                                                    | 0/7 [00:00<?, ?it// -
Comparing specs that have this dependency:  73%|?????????????????????????????          | 11/15 [01:21<00:29,  7.40s/i\ |
Finding shortest conflict path for jupyter_client[version='>=4.2']:  67%|???????????     | 4/6 [00:10<00:01,  1.35it/| -
Comparing specs that have this dependency:  80%|????????????????????????????????       | 12/15 [01:34<00:23,  7.91s/i- |
failed                                                                                                                 /
                                                                                                                       \
UnsatisfiableError: The following specifications were found to be incompatible with a past
explicit spec that is not an explicit spec in this operation (spyder):

  - spyder=4.0.0

The following specifications were found to be incompatible with each other:



Package jedi conflicts for:
spyder=4.0.0 -> python-language-server[version='>=0.31.2,<0.32.0'] -> jedi[version='>=0.14.1,<0.16']
jedi
jupyterlab_server -> notebook -> ipykernel -> ipython[version='>=4.0'] -> jedi[version='>=0.10']
anaconda==2019.10 -> jedi==0.15.1[build='py37_0|py36_0|py27_0']
ipython -> jedi[version='>=0.10']
qtconsole -> ipykernel[version='>=4.1'] -> ipython[version='>=4.0'] -> jedi[version='>=0.10']
_ipyw_jlab_nb_ext_conf -> ipywidgets -> ipython[version='>=4.0.0'] -> jedi[version='>=0.10']
jupyter_console -> ipython -> jedi[version='>=0.10']
spyder-kernels -> ipykernel -> ipython[version='>=4.0'] -> jedi[version='>=0.10']
widgetsnbextension -> notebook[version='>=4.4.1'] -> ipykernel -> ipython[version='>=4.0'] -> jedi[version='>=0.10']
jupyterlab -> notebook[version='>=4.3.1'] -> ipykernel -> ipython[version='>=4.0'] -> jedi[version='>=0.10']
jupyter -> ipykernel -> ipython[version='>=4.0'] -> jedi[version='>=0.10']
spyder=4.0.0 -> qtconsole[version='>=4.6.0'] -> ipykernel[version='>=4.1'] -> ipython[version='>=5.0'] -> jedi[version='>=0.10']
ipywidgets -> ipython[version='>=4.0.0'] -> jedi[version='>=0.10']
notebook -> ipykernel -> ipython[version='>=4.0'] -> jedi[version='>=0.10']
ipykernel -> ipython[version='>=4.0'] -> jedi[version='>=0.10']
anaconda==2019.10 -> spyder==3.3.6=py27_0 -> jedi[version='>=0.10|>=0.9']
spyder=4.0.0 -> jedi=0.14.1
Package jupyter_client conflicts for:
_ipyw_jlab_nb_ext_conf -> jupyterlab -> notebook[version='>=4.3.1'] -> nbconvert -> jupyter_client[version='>=4.2']
widgetsnbextension -> notebook[version='>=4.4.1'] -> nbconvert -> jupyter_client[version='>=4.2']
jupyterlab -> notebook[version='>=4.3.1'] -> nbconvert -> jupyter_client[version='>=4.2']
ipywidgets -> widgetsnbextension[version='>=3.3.0,<3.4.0'] -> notebook[version='>=4.4.1'] -> jupyter_client[version='>=5.2.0|>=5.3.1|>=5.3.4']
jupyterlab_server -> notebook -> jupyter_client[version='>=5.2.0|>=5.3.1|>=5.3.4']
anaconda==2019.10 -> ipykernel==4.10.0=py27_0 -> jupyter_client[version='>=4.1|>=5.2.0|>=5.2.3|>=5.3.1']
jupyter -> ipykernel -> jupyter_client[version='>=4.1|>=4.2|>=5.2.0|>=5.3.1|>=5.3.4']
ipywidgets -> widgetsnbextension[version='>=3.3.0,<3.4.0'] -> notebook[version='>=4.4.1'] -> nbconvert -> jupyter_client[version='>=4.2']
spyder=4.0.0 -> qtconsole[version='>=4.6.0'] -> ipykernel[version='>=4.1'] -> jupyter_client
jupyterlab -> notebook[version='>=4.3.1'] -> jupyter_client[version='>=5.2.0|>=5.3.1|>=5.3.4']
spyder=4.0.0 -> nbconvert -> jupyter_client[version='>=4.1|>=4.2|>=5.3.4']
ipywidgets -> ipykernel[version='>=4.5.1'] -> jupyter_client
anaconda==2019.10 -> jupyter_client==5.3.3[build='py27_1|py36_1|py37_1']
spyder-kernels -> ipykernel -> jupyter_client
jupyter_console -> jupyter_client
spyder-kernels -> jupyter_client[version='>=5.2.3|>=5.3.4']
notebook -> nbconvert -> jupyter_client[version='>=4.2']
jupyter_client
notebook -> jupyter_client[version='>=5.2.0|>=5.3.1|>=5.3.4']
nbconvert -> jupyter_client[version='>=4.2']
_ipyw_jlab_nb_ext_conf -> ipywidgets -> ipykernel[version='>=4.5.1'] -> jupyter_client[version='>=5.2.0|>=5.3.1|>=5.3.4']
jupyterlab_server -> notebook -> nbconvert -> jupyter_client[version='>=4.2']
widgetsnbextension -> notebook[version='>=4.4.1'] -> jupyter_client[version='>=5.2.0|>=5.3.1|>=5.3.4']
ipykernel -> jupyter_client
qtconsole -> ipykernel[version='>=4.1'] -> jupyter_client
qtconsole -> jupyter_client[version='>=4.1']
Package jupyter_core conflicts for:
anaconda==2019.10 -> jupyter_core==4.5.0=py_0
spyder=4.0.0 -> nbconvert -> jupyter_client[version='>=4.2'] -> jupyter_core[version='>=4.6.0']
nbconvert -> jupyter_client[version='>=4.2'] -> jupyter_core[version='>=4.6.0']
jupyterlab -> notebook[version='>=4.3.1'] -> jupyter_core[version='>=4.4.0|>=4.6.0']
ipywidgets -> ipykernel[version='>=4.5.1'] -> jupyter_client -> jupyter_core[version='>=4.4.0|>=4.6.0']
anaconda-project -> anaconda-client -> nbformat[version='>=4.4.0'] -> jupyter_core
jupyter_core
anaconda-navigator -> anaconda-client[version='>=1.6'] -> nbformat[version='>=4.4.0'] -> jupyter_core
jupyter -> notebook -> jupyter_core[version='>=4.4.0|>=4.6.0']
_ipyw_jlab_nb_ext_conf -> jupyterlab -> notebook[version='>=4.3.1'] -> jupyter_core[version='>=4.4.0|>=4.6.0']
spyder-kernels -> jupyter_client[version='>=5.2.3'] -> jupyter_core[version='>=4.6.0']
widgetsnbextension -> notebook[version='>=4.4.1'] -> jupyter_core[version='>=4.4.0|>=4.6.0']
notebook -> jupyter_core[version='>=4.4.0|>=4.6.0']
ipywidgets -> nbformat[version='>=4.2.0'] -> jupyter_core
anaconda-client -> nbformat[version='>=4.4.0'] -> jupyter_core
nbformat -> jupyter_core
jupyter_console -> jupyter_client -> jupyter_core[version='>=4.6.0']
anaconda==2019.10 -> jupyter_client==5.3.3=py27_1 -> jupyter_core[version='>=4.4.0']
qtconsole -> jupyter_core
ipykernel -> jupyter_client -> jupyter_core[version='>=4.6.0']
spyder=4.0.0 -> nbconvert -> jupyter_core
jupyter_client -> jupyter_core[version='>=4.6.0']
nbconvert -> jupyter_core
jupyterlab_server -> notebook -> jupyter_core[version='>=4.4.0|>=4.6.0']
qtconsole -> jupyter_client[version='>=4.1'] -> jupyter_core[version='>=4.6.0']
Package spyder-kernels conflicts for:
spyder=4.0.0 -> spyder-kernels[version='>=1.8.1,<2.0.0']
spyder-kernels
anaconda==2019.10 -> spyder-kernels==0.5.2[build='py37_0|py36_0|py27_0']
anaconda==2019.10 -> spyder==3.3.6=py27_0 -> spyder-kernels[version='>=0.5.0,<1']
Package qtconsole conflicts for:
anaconda==2019.10 -> qtconsole==4.5.5=py_0
jupyter -> qtconsole
anaconda==2019.10 -> jupyter==1.0.0=py27_7 -> qtconsole[version='>=4.2']
spyder=4.0.0 -> qtconsole[version='>=4.6.0']
qtconsole

启动 Anaconda Navigator 时，Spyder 版本仍为 3.3.6。

为了使 Spyder 的最新版本受益，我缺少什么？

编辑 1：

当我尝试使用 Anaconda Navigator 时，它说：

此环境下无法安装spyder 4.0.0

它建议安装其他环境，但我希望更新 Spyder，而不是安装在其他地方。

编辑 2： 我成功地将 conda 更改为 4.6，但出现以下两个错误：

FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Users\\brichard\\AppData\\Local\\Continuum\\anaconda3\\Menu\\spyder_shortcut.jsodone

和 ：

CondaError: Cannot link a source that does not exist. C:\Users\brichard\AppData\Local\Continuum\anaconda3\Scripts\conda.exe 
Running `conda clean --packages` may resolve your problem.

该conda clean --packages命令没有帮助，因为在执行后会引发相同的错误。

Answer 1

( Spyder 维护者在这里) 其他用户报告说你需要运行

conda update anaconda

进而

conda install spyder=4

成功更新到版本 4。

希望有帮助。

Answer 2

我使用了以下内容：

conda update anaconda

进而

conda update spyder
conda install spyder=4.0.1

成功更新到版本 4.0.1

Answer 3

对于那些试图升级到 Spyder 4 并在 Windows 10 中使用 conda 环境的人来说，这里只是一个额外的说明。我想使用 Spyder 4，但也在 Spyder 内部收到错误，说它找不到 spyder-kernels。无论（1）我是否在新环境或基本环境中安装了 Spyder，以及（2）即使我随后通过 conda 安装了 spyder-kernels，都会发生这种情况。

我尝试遵循上面给出的建议并且已经安装了 Anaconda（通过 Windows 安装程序）但是当我尝试

conda update anaconda

它在基础环境中找不到 Anaconda。所以我还是使用 conda 安装了 Anaconda（尽管这对我来说似乎是递归的）

conda install anaconda

之后，我能够通过以下方式更新 Anaconda：

conda update anaconda

一旦我这样做了，我就能够从基本环境（已经安装）运行 Spyder 4，并且我得到了一个有效的 Ipython 内核。

然后我可以从基本环境中打开 Spyder 并使用 Spyder 菜单，工具 -> 首选项 -> Python 解释器，我可以设置我想要的 conda 环境，例如，C:\Users\\Anaconda3\envs\myenv \python.exe

然后，为了允许 Spyder 在我想要工作的 conda 环境中创建 Ipython 内核，我必须将 spyder-kernels 安装到这个环境中，因此，我启动了一个新的 Anaconda 提示符，并且：

conda activate myenv

conda install spyder-kernels

最后，回到 Spyder，我重新启动了我的内核 (Ctrl+.)。这给了我一个正常运行的 Ipython kernel ，并且查看 Spyder 窗口底部的状态栏，我可以看到我在 myenv 环境中。

所以现在我可以使用 Spyder IDE（从基本环境启动它）但能够在以前创建的 conda 环境中工作。它还避免了必须将完整的 Spyder 安装到我创建的每个环境中（但确实意味着必须将 spyder-kernels 安装到每个环境中）。

我知道这是一个很长的评论，但在我解决这个确切问题之前我花了很长时间环顾四周，所以我希望它对也面临同样问题的其他人有用。