阴谋失踪的逆戟鲸

Question

使用 plotly 导出静态图表时出现小问题。

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

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

orca 版本是 1.5.1

谢谢。

B.

编辑：

错误消息：

---------------------------------------------------------------------------
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

来自情节文档

pip install -U kaleido

Answer 2

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 3

#尝试在 Colab 上安装这些软件包：

!pip install plotly==4.7.1
!wget https://github.com/plotly/orca/releases/download/v1.2.1/orca-1.2.1- 
x86_64.AppImage -O /usr/local/bin/orca
!chmod +x /usr/local/bin/orca
!apt-get install xvfb libgtk2.0-0 libgconf-2-4
import plotly.graph_objects as go

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

或者将生成的图形保存在 Google Drive 上：

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

Answer 4

在 Windows 上使用 Pycharm 和 Python 3.6 对我有用的是：

• 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
  • 在桌面上新创建的 Orca 图标上右击，可以得到应用程序的安装路径。

• 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    ")