[英]sp_execute_external_script can't find modules installed by setuptools
I am actively developing a Python module that I would like to deploy in SQL Server 2017 installed locally, so I deploy the module in c:\\Program Files\\Microsoft SQL Server\\<Instance Name>\\PYTHON_SERVICES\\Lib\\site-packages
using setuptools
like so:我正在积极开发一个 Python 模块,我想在本地安装的 SQL Server 2017 中部署该模块,因此我使用setuptools
将该模块部署在c:\\Program Files\\Microsoft SQL Server\\<Instance Name>\\PYTHON_SERVICES\\Lib\\site-packages
像这样:
"c:\Program Files\Microsoft SQL Server\<Instance_Name>\PYTHON_SERVICES\python" setup.py develop
This produces an .egg-info
directory in my project root, and a .egg-link
file in the site-packages
directory mentioned above.这会在我的项目根目录中生成一个.egg-info
目录,并在上面提到的site-packages
目录中生成一个.egg-link
文件。 The .egg-link
file correctly points to the .egg-info
directory in my project root, so it appears setuptools
is working correctly. .egg-link
文件正确指向了我项目根目录中的.egg-info
目录,所以看起来setuptools
工作正常。
Here's my setup.py
for reference:这是我的setup.py
供参考:
from setuptools import setup
setup(
setup_requires=['pbr'],
pbr=True,
)
And here's the corresponding setup.cfg
file:这是相应的setup.cfg
文件:
[metadata]
name = <module_name>
description = <Module Description>
description-file = README.md
description-content-type = text/markdown
[files]
package_root = py/src
Since I am just trying to make the plumbing work, I have a single python script called uploader.py
in <project_root>/py/src
:由于我只是想让管道工作,我在<project_root>/py/src
有一个名为uploader.py
Python 脚本:
#uploader.py
class Upload:
pass
With this deployment in place, I am hoping to simply import
the module I just published through .egg-link
into a sp_execute_external_script
call like so:有了这个部署,我希望简单地import
我刚刚通过.egg-link
发布的模块import
到sp_execute_external_script
调用中,如下所示:
execute sp_execute_external_script @language= N'Python', @script= N'from <module_name>.uploader import Upload';
However, executing this stored procedure from SSMS produces the following error message:但是,从 SSMS 执行此存储过程会产生以下错误消息:
Msg 39004, Level 16, State 20, Line 10
A 'Python' script error occurred during execution of 'sp_execute_external_script' with HRESULT 0x80004004.
Msg 39019, Level 16, State 2, Line 10
An external script error occurred:
Error in execution. Check the output for more information.
Traceback (most recent call last):
File "<string>", line 5, in <module>
File "C:\SQL-MSSQLSERVER-ExtensibilityData-PY\MSSQLSERVER01\C08BB9A7-66B5-4B5E-AAFC-B0248EE64199\sqlindb.py", line 27, in transform
from <module_name>.uploader import Upload
ImportError: No module named '<module_name>'
SqlSatelliteCall error: Error in execution. Check the output for more information.
STDOUT message(s) from external script:
SqlSatelliteCall function failed. Please see the console output for more information.
Traceback (most recent call last):
File "C:\Program Files\Microsoft SQL Server\<Instance_Name>\PYTHON_SERVICES\lib\site-packages\revoscalepy\computecontext\RxInSqlServer.py", line 587, in rx_sql_satellite_call
rx_native_call("SqlSatelliteCall", params)
File "C:\Program Files\Microsoft SQL Server\<Instance_Name>\PYTHON_SERVICES\lib\site-packages\revoscalepy\RxSerializable.py", line 358, in rx_native_call
ret = px_call(functionname, params)
RuntimeError: revoscalepy function failed.
I have obviously redacted module_name
and Instance_Name
from the error message.我显然已经从错误消息中编辑了module_name
和Instance_Name
。
I tried using install
command instead of develop
just to make sure the .egg-link
file is not a problem.我尝试使用install
命令而不是develop
来确保.egg-link
文件没有问题。 install
installs the .egg-info
file in site-packages
but I get the same error. install
在site-packages
安装.egg-info
文件,但我得到了同样的错误。
I also tried removing pbr
from the mix, but got the same error.我也尝试从混合中删除pbr
,但得到了同样的错误。
Lastly, I tried adding my <project_root>
to sys.path
as suggested by How can I use an external python module with SQL 2017 sp_execute_external_script?最后,我尝试按照How can I use an external python module with SQL 2017 sp_execute_external_script 的建议将我的<project_root>
添加到sys.path
? , but that didn't help either. ,但这也无济于事。
So at this point, I don't have a clue what I might be doing wrong.所以在这一点上,我不知道我可能做错了什么。
The python version is 3.5.2
and I don't think an __init__.py
is needed in the project for it to qualify as a module. python 版本是3.5.2
,我认为项目中不需要__init__.py
才能将其作为模块。 Inserting a blank __init__.py
in py/src
doesn't help either.在py/src
中插入一个空白的__init__.py
也无济于事。
My pip
version is 19.3.1
and setuptools
version is 44.0.0
and pbr
version is 5.4.4
and I have confirmed all modules are installed in the site-packages
directory mentioned above.我的pip
的版本是19.3.1
和setuptools
版本是44.0.0
和pbr
的版本是5.4.4
,我已确认所有模块都安装在site-packages
目录上面提到的。
Based on my extensive experimentation, it appears that sp_execute_external_script
doesn't follow symlinks (ie through the .egg-link
file).根据我的大量实验,似乎sp_execute_external_script
不遵循符号链接(即通过.egg-link
文件)。 Therefore, development mode installations will not work, whether you use setuptools
, pip
, pbr
or anything else.因此,无论您使用setuptools
、 pip
、 pbr
还是其他任何方式,开发模式安装都不起作用。
I even tried symlinking <package_name>
folder as an OS symlink.我什至尝试将<package_name>
文件夹符号链接为操作系统符号链接。 Since I am on Windows, I used mklink /D
command on Command Prompt to symlink /py/src/<package_name>
inside site-packages
.由于我在 Windows 上,我在命令提示符上使用mklink /D
命令来符号链接/py/src/<package_name>
内的site-packages
。 While the command goes through correctly, and I can see the symlinked folder in File Explorer, sp_execute_external_script
fails to detect the package.虽然命令正确执行,并且我可以在文件资源管理器中看到符号链接文件夹,但sp_execute_external_script
无法检测到包。 Which tells me that there is probably something in sp_execute_external_script
code that avoids traversing symbolic links.这告诉我sp_execute_external_script
代码中可能有一些东西可以避免遍历符号链接。
I wonder if there is a way to make it traverse symbolic links.我想知道是否有办法让它遍历符号链接。
The only workable solution is to develop a package's code under its own directory, so, in my case /py/src/<package_name>
.唯一可行的解决方案是在其自己的目录下开发包的代码,因此,在我的情况下是/py/src/<package_name>
。 Then, before running exec sp_execute_external_script @language=N'python', @script=N'...'
copy the <package_name>
folder to the site-packages
directory.然后,在运行exec sp_execute_external_script @language=N'python', @script=N'...'
将<package_name>
文件夹复制到site-packages
目录。
This is, sort of, equivalent to setup.py install
, but bypasses the creation of intermediate files and directories.这在setup.py install
相当于setup.py install
,但绕过了中间文件和目录的创建。 So I am going to stick with this simple--though odious--approach.所以我将坚持使用这种简单——尽管令人讨厌——的方法。
I am hoping somebody more knowledgeable would offer a better way to solve this problem.我希望知识渊博的人会提供更好的方法来解决这个问题。
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