Plotly 缺少逆戟鲸

Question

使用 plotly 导出 static 图表时出现小问题。

Plotly 无法正确识别我安装了 orca，并且仍然存在与缺少 orca 相关的错误。 我尝试更改 orca 目录，但它仍然无法正常工作。 有谁知道出了什么问题？

我的代码：

import plotly.graph_objects as go
import orca
import plotly

#%%
fig = go.Figure(data=go.Candlestick(x=pricedata.index,
                    open=pricedata['bidopen'],
                    high=pricedata['bidhigh'],
                    low=pricedata['bidlow'],
                    close=pricedata['bidclose']),)
#%%
fig.show()

#%%
plotly.io.orca.config.executable = r'C:\Users\Kuba\AppData\Local\Programs\Python\Python37\Lib\site-packages\orca'
plotly.io.orca.config.save()

#%%

fig.write_image("images/fig1.png")

这里描述了如何解决它，但它对我不起作用：

https://plot.ly/python/orca-management/#configuring-the-executable

逆戟鲸版本是 1.5.1

谢谢。

B.

编辑：

错误信息：

---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
c:\Users\Kuba\Documents\GitHub\frstalg\FXCM Stuff\LiveMyStrategyNOTEBOOK-20191017.py in 
      1 
----> 2 fig.write_image("images/fig1.png")

~\AppData\Local\Programs\Python\Python37\lib\site-packages\plotly\basedatatypes.py in write_image(self, *args, **kwargs)
   2686         import plotly.io as pio
   2687 
-> 2688         return pio.write_image(self, *args, **kwargs)
   2689 
   2690     # Static helpers

~\AppData\Local\Programs\Python\Python37\lib\site-packages\plotly\io\_orca.py in write_image(fig, file, format, scale, width, height, validate)
   1703     # Do this first so we don't create a file if image conversion fails
   1704     img_data = to_image(
-> 1705         fig, format=format, scale=scale, width=width, height=height, validate=validate
   1706     )
   1707 

~\AppData\Local\Programs\Python\Python37\lib\site-packages\plotly\io\_orca.py in to_image(fig, format, width, height, scale, validate)
   1480     # Make sure orca sever is running
   1481     # -------------------------------
-> 1482     ensure_server()
   1483 
   1484     # Handle defaults

~\AppData\Local\Programs\Python\Python37\lib\site-packages\plotly\io\_orca.py in ensure_server()
   1342     # Validate orca executable
   1343     if status.state == "unvalidated":
-> 1344         validate_executable()
   1345 
   1346     # Acquire lock to make sure that we keep the properties of orca_state

~\AppData\Local\Programs\Python\Python37\lib\site-packages\plotly\io\_orca.py in validate_executable()
   1041                 executable=config.executable,
   1042                 formatted_path=formatted_path,
-> 1043                 instructions=install_location_instructions,
   1044             )
   1045         )

ValueError: 
The orca executable is required to export figures as static images,
but it could not be found on the system path.

Searched for executable 'C:\Users\Kuba\AppData\Local\Programs\Python\Python37\Lib\site-packages\orca' on the following path:
    C:\Users\Kuba\AppData\Local\Programs\Python\Python37\lib\site-packages
    C:\Program Files\Microsoft MPI\Bin\
    C:\Program Files (x86)\Common Files\Oracle\Java\javapath
    C:\Program Files (x86)\Intel\iCLS Client\
    C:\Program Files\Intel\iCLS Client\
    C:\Windows\system32
    C:\Windows
    C:\Windows\System32\Wbem
    C:\Windows\System32\WindowsPowerShell\v1.0\
    C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common
    C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL
    C:\Program Files\Intel\Intel(R) Management Engine Components\DAL
    C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT
    C:\Program Files\Intel\Intel(R) Management Engine Components\IPT
    C:\WINDOWS\system32
    C:\WINDOWS
    C:\WINDOWS\System32\Wbem
    C:\WINDOWS\System32\WindowsPowerShell\v1.0\
    C:\WINDOWS\System32\OpenSSH\
    C:\Program Files\Git\cmd
    C:\Program Files\dotnet\
    C:\Program Files\PuTTY\
    C:\Users\Kuba\AppData\Local\Programs\Python\Python37\Scripts\
    C:\Users\Kuba\AppData\Local\Programs\Python\Python37\
    C:\Users\Kuba\AppData\Local\Microsoft\WindowsApps
    C:\Users\Kuba\AppData\Local\Programs\Microsoft VS Code\bin
    C:\Users\Kuba\AppData\Local\GitHubDesktop\bin
    %USERPROFILE%\AppData\Local\Microsoft\WindowsApps

    C:\Users\Kuba\AppData\Local\Programs\Python\Python37\lib\site-packages\numpy\.libs

If you haven't installed orca yet, you can do so using conda as follows:

    $ conda install -c plotly plotly-orca

Alternatively, see other installation methods in the orca project README at
https://github.com/plotly/orca.

After installation is complete, no further configuration should be needed.

If you have installed orca, then for some reason plotly.py was unable to
locate it. In this case, set the `plotly.io.orca.config.executable`
property to the full path of your orca executable. For example:

    >>> plotly.io.orca.config.executable = '/path/to/orca'

After updating this executable property, try the export operation again.
If it is successful then you may want to save this configuration so that it
will be applied automatically in future sessions. You can do this as follows:

    >>> plotly.io.orca.config.save()

If you're still having trouble, feel free to ask for help on the forums at
https://community.plot.ly/c/api/python

Answer 1

试试万花筒，它对我有用。 它是逆戟鲸的替代品

conda install -c plotly python-kaleido

Answer 2

对我有用的 Windows 与 Pycharm 和 Python 3.6 是：

• 遵循https://github.com/plotly/orca#installation - 方法 4：独立二进制文件：

  • 从https://github.com/plotly/orca/releases下载 windows-release.zip
  • 安装可执行文件
  • 右键单击桌面新创建的 Orca 图标以获取安装应用程序的路径。

• 从 plotly\io 文件夹（在我的情况下C:\Users\ventafri\AppData\Local\Programs\Python\Python36\Lib\site-packages\plotly\io ）打开_orca.py

代替：

 # Try to find an executable
 # -------------------------
 # Search for executable name or path in config.executable
 executable = which(config.executable)
 path = os.environ.get("PATH", os.defpath)
 formatted_path = path.replace(os.pathsep, "\n    ")

和：

# Try to find an executable
# -------------------------
# Search for executable name or path in config.executable
executable = r"C:\Users\ventafri\AppData\Local\Programs\orca\orca.exe"
path = os.environ.get("PATH", os.defpath)
formatted_path = path.replace(os.pathsep, "\n    ")

Answer 3

苏珊娜的回答可能要好得多，但对我有用的是降级到 orca 1.2.1：

conda remove plotly plotly-orca
conda install -c plotly plotly-orca==1.2.1

Answer 4

#尝试在 Colab 上安装这些软件包：

fig.show()
fig.write_image("gdrive/My Drive/destinationfolder/figname.png")

然后生成您的图形-此处不包括代码-将图形另存为：

 fig.show() fig.write_image("figname.png")#change format if needed

或将生成的图形保存在 Google 驱动器上：

 fig.show() fig.write_image("gdrive/My Drive/destinationfolder/figname.png")

Answer 5

来自plotly 文档

pip install -U kaleido

Answer 6

我也面临同样的问题，您可以在使用 plotly 时使用 kaleido 保存 static 图像。

https://medium.com/plotly/introducing-kaleido-b03c4b7b1d81

Answer 7

我在使用 kernel 以外的基本 conda 环境在 jupyter notebook 中尝试使用 plotly 生成 static 图像时遇到了类似的问题。

我必须在基础环境中安装 plotly-orca 才能使其正常工作。

Answer 8

对我有用的是从https://github.com/plotly/orca/releases安装 .exe 文件

然后使用新创建的.exe 文件的文件路径运行它。

导入 plotly plotly.io.orca.config.executable = '...../orca/orca.exe'

Answer 9

如果您仍然面临依赖问题，可能安装 pip 安装 urbansim 可能会解决它。