带有ProtoBuf编译的Python结构的VS Code PyLint错误E0602（未定义的变量） [英] VS Code PyLint Error E0602 (undefined variable) with ProtoBuf compiled Python Structure

问题描述

我使用Visual Studio已有很长时间了，但是维护变得太复杂了。现在，我尝试使用VS Code，但是它抛出了许多对我来说没有意义的PyLint错误消息（该程序仍然可以正常运行）。这些错误主要发生在从GoogleProtoBuf结构生成的Python代码中。

例如：

  from lbsnstructure.lbsnstructure_pb2 import lbsnPost 
 
 def geoaccuracy_within_threshold（post_geoaccuracy，min_geoaccuracy）：
检查地理精度是否在阈值内或以下 
 
，如果min_geoaccuracy == lbsnPost.LATLNG：
 allowed_geoaccuracies = [lbsnPost.LATLNG] 
 elif min_geoaccuracy == lbsnPost.PLACE：
 allowed_geoaccuracies = [lbsnPost.LATLNG .LATLNG，lbsnPost.PLACE] 
 elif min_geoaccuracy == lbsnPost.CITY：
 allowed_geoaccuracies = [lbsnPost.LATLNG，lbsnPost.PLACE，lbsnPost.CITY] 
 else：
返回True 
＃如果post_geoaccuracy在allowed_geoaccuracys中检查发布的地理精度
：
返回True 
否则：
 return False 
  

抛出错误来自pyLint的消息E0602：

未定义变量'lbsnPost'pylint（E0602）

lbsnPost：GeneratedProtocolMessageType

但是，Google

该页面似乎在讨论相同的问题，但没有一种解决方案有效：

lbsnpost（）。LATLNG （实例化protobuf消息），我得到相同的未定义变量错误。

解决方案

我解决了我的问题。 显然，pylint在protobuf编译的python类中有（不得不？）问题。有一个软件包可用可解决此问题。

• 已安装 pylint-protobuf 软件包（ pip install pylint-protobuf ）


• 添加了 python.linting.pylintArgs：[ --load-插件， pylint_protobuf] 到VS Code中的用户设置

没有错误！

有关更多信息，请参见 VS代码整理文档

I was using Visual Studio for a long time, but it was becoming too complicated to maintain. Now I tried to move to VS Code, but it throws a number of PyLint error messages that don't make sense to me (and the program still works as expected). These errors happen primarily with Python code generated from a GoogleProtoBuf structure.

For example:

from lbsnstructure.lbsnstructure_pb2 import lbsnPost

def geoaccuracy_within_threshold(post_geoaccuracy, min_geoaccuracy):
    """Checks if geoaccuracy is within or below threshhold defined"""

    if min_geoaccuracy == lbsnPost.LATLNG:
        allowed_geoaccuracies = [lbsnPost.LATLNG]
    elif min_geoaccuracy == lbsnPost.PLACE:
        allowed_geoaccuracies = [lbsnPost.LATLNG, lbsnPost.PLACE]
    elif min_geoaccuracy == lbsnPost.CITY:
        allowed_geoaccuracies = [lbsnPost.LATLNG, lbsnPost.PLACE, lbsnPost.CITY]
    else:
        return True
    # check post geoaccuracy
    if post_geoaccuracy in allowed_geoaccuracies:
        return True
    else:
        return False

Throws error message E0602 from pyLint:

Undefined variable 'lbsnPost' pylint (E0602)
lbsnPost: GeneratedProtocolMessageType

However, Google explicitly states that this form of type-referencing is correct:

Enums are expanded by the metaclass into a set of symbolic constants with integer values. So, for example, the constant addressbook_pb2.Person.WORK has the value 2.

I get similar errors all over my code (that works fine). I suspect that this is something that I have written in the wrong convention, but somehow still works. But what is the right convention?

This page seems to discuss the same issue, but none of the solutions work:
Undefined variable from import when using protocol buffers in PyDev
that is, even when doing lbsnpost().LATLNG (instantiating the protobuf message), I get the same undefined variable error.

解决方案

I solved my problem. Apparently, pylint has (had?) problems with protobuf compiled python classes. There's a package available that solves this issue.

• installed pylint-protobuf package (pip install pylint-protobuf)
• added "python.linting.pylintArgs": ["--load-plugins", "pylint_protobuf"] to User Settings in VS Code

No errors!

For more information, see the VS Code linting Docs

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