验证编译扩展类型的兼容性，并将它们与 cdef 一起使用 [英] Verifying compatibility in compiling extension types, and using them with cdef

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本文介绍了验证编译扩展类型的兼容性，并将它们与 cdef 一起使用的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

  • 为什么 Cython 编译中的其他错误指向特定的错误行，而这没有?

由于难以编译扩展类型，如下面的不会编译"链接中所述，人们认为 AssertionError 与扩展类型有关(在它们的实例化传输到主 pyx 文件之后).

Due to difficulty in compiling extension types, as referenced in the 'won't compile' link below, it was thought that the AssertionError was related to the extension types (after their instantiation was transferred to the main pyx file).

来自这个论坛帖子的人说如果你实际上想要扩展类型，并且想要在你的代码中声明它们的类型，你需要在 .pxd 文件中声明它们的 C 属性."

Someone from this forum post said that "If you actually want extension types, and want to declare their types in your code, you need to declare their C attributes in a .pxd file."

如果在这种情况下确实如此，则问题在于 pyx 文件 使用 pxd 文件时不会为我编译.在一个 pyx 文件中编译扩展类型时没有错误，但是当在导入后使用扩展类型时，我收到错误 extTypeName is not a type identifier.

If that is true in this case, the problem is that the pyx files won’t compile for me when using pxd files. There is no error when compiling the extension type in one pyx file, but then I receive the error extTypeName is not a type identifier when the extension type is used after its import.

我在评论中被告知，扩展类型可以是在 pyx 文件中定义，主函数使用它们.这样做时，我收到一个错误，我不知道如何跟踪(AssertionError:用于索引的意外类型 int 和基类型元组对象).完整的回溯发布在下面.

I was told in the comments that extension types can be defined in the pyx file with the main function using them. When doing so, I receive an error I don’t know how to trace (AssertionError: unexpected type int and base type tuple object for indexing). The full traceback is posted below.

尝试使用在同一个 pyx 文件中声明的扩展类型进行编译时的回溯(我不确定这是问题的根源):

Traceback when trying to compile with the extension types declared in the same pyx file (which I’m not sure is the source of the issue):

Traceback (most recent call last):
  File "setup.py", line 37, in <module>
    ext_modules = [Extension("HintToCRdict", ["HintToCRdict.pyx"])]
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/core.py", line 151, in setup
    dist.run_commands()
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py", line 953, in run_commands
    self.run_command(cmd)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py", line 972, in run_command
    cmd_obj.run()
  File "/Library/Python/2.7/site-packages/Cython/Distutils/build_ext.py", line 164, in run
    _build_ext.build_ext.run(self)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/command/build_ext.py", line 337, in run
    self.build_extensions()
  File "/Library/Python/2.7/site-packages/Cython/Distutils/build_ext.py", line 171, in build_extensions
    ext.sources = self.cython_sources(ext.sources, ext)
  File "/Library/Python/2.7/site-packages/Cython/Distutils/build_ext.py", line 324, in cython_sources
    full_module_name=module_name)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Main.py", line 688, in compile
    return compile_single(source, options, full_module_name)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Main.py", line 638, in compile_single
    return run_pipeline(source, options, full_module_name)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Main.py", line 495, in run_pipeline
    err, enddata = Pipeline.run_pipeline(pipeline, source)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Pipeline.py", line 365, in run_pipeline
    data = phase(data)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Pipeline.py", line 53, in generate_pyx_code_stage
    module_node.process_implementation(options, result)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/ModuleNode.py", line 131, in process_implementation
    self.generate_c_code(env, options, result)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/ModuleNode.py", line 359, in generate_c_code
    self.body.generate_function_definitions(env, code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 435, in generate_function_definitions
    stat.generate_function_definitions(env, code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 1944, in generate_function_definitions
    self.generate_function_body(env, code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 1698, in generate_function_body
    self.body.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 441, in generate_execution_code
    stat.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 441, in generate_execution_code
    stat.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 5851, in generate_execution_code
    if_clause.generate_execution_code(code, end_label, is_last=i == last)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 5894, in generate_execution_code
    self.body.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 441, in generate_execution_code
    stat.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/UtilNodes.py", line 321, in generate_execution_code
    self.body.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 6402, in generate_execution_code
    self.body.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 441, in generate_execution_code
    stat.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/UtilNodes.py", line 321, in generate_execution_code
    self.body.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 6402, in generate_execution_code
    self.body.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 441, in generate_execution_code
    stat.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 5851, in generate_execution_code
    if_clause.generate_execution_code(code, end_label, is_last=i == last)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 5894, in generate_execution_code
    self.body.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 441, in generate_execution_code
    stat.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/UtilNodes.py", line 89, in generate_execution_code
    self.body.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 441, in generate_execution_code
    stat.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 6015, in generate_execution_code
    self.body.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 441, in generate_execution_code
    stat.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 6192, in generate_execution_code
    self.body.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 441, in generate_execution_code
    stat.generate_execution_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 4786, in generate_execution_code
    self.generate_rhs_evaluation_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/Nodes.py", line 5073, in generate_rhs_evaluation_code
    self.rhs.generate_evaluation_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/ExprNodes.py", line 699, in generate_evaluation_code
    self.generate_subexpr_evaluation_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/ExprNodes.py", line 714, in generate_subexpr_evaluation_code
    node.generate_evaluation_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/ExprNodes.py", line 699, in generate_evaluation_code
    self.generate_subexpr_evaluation_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/ExprNodes.py", line 714, in generate_subexpr_evaluation_code
    node.generate_evaluation_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/ExprNodes.py", line 705, in generate_evaluation_code
    self.generate_result_code(code)
  File "/Library/Python/2.7/site-packages/Cython/Compiler/ExprNodes.py", line 3737, in generate_result_code
    self.type, self.base.type)
AssertionError: unexpected type int and base type tuple object for indexing

推荐答案

回复我可以从你的消息中得到的信息.

A reply with what I can take from your message.

  1. 在 Cython 中使用 Python 对象是可能的，但在您cdef 某些部分时会受到限制.尝试通过un"-cdefing dict.
  2. 您遇到的错误表明您有一个 x[y] 表达式，其中 x 是一个元组，而 y 是一个 int.原则上它应该可以正常工作(用 int 索引元组应该没问题).因此，您可以查看 Cython 中的方括号以了解它的来源.
  3. 您提到已删除 pxd 文件.然后，您是否将扩展类/其他类型定义的完整声明移动到 pyx 文件中?
  1. The use of Python objects in Cython is possible but limited as soon as you cdef some parts. Try by "un"-cdefing the dict.
  2. The error you have suggests that you have an expression that is x[y] where x is a tuple and y an int. In principle it should work all right (indexing a tuple with an int shoud be ok). So you can look at square brackets in the Cython to find out where it comes from.
  3. You mentioned having removed the pxd file. Have you then move the full declaration of the extension class/other type definitions to the pyx file?

这篇关于验证编译扩展类型的兼容性，并将它们与 cdef 一起使用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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