为什么 MSWord 文档的保存会默默失败？

发布于 2024-08-03 07:02:03 字数 682 浏览 11 评论 0原文

我需要更改许多文件中的一些自定义属性值。下面是一个代码示例 - 我如何对单个文件执行此操作：

import win32com.client

MSWord = win32com.client.Dispatch("Word.Application")
MSWord.Visible = False

doc = MSWord.Documents.Open(file)
doc.CustomDocumentProperties('Some Property').Value = 'Some New Value'
doc.Save()
doc.Close()

MSWord.Quit()

为 "Excel.Application" 运行相同的代码（稍作更改 - 只是为了使其工作）给了我很好的结果。但是，当我对 MSWord 使用 doc.Save() 或 doc.SaveAs(same_file) 时，它会默默地失败。我不知道为什么，但更改没有保存。

现在我的解决方法是使用 SaveAs 到另一个文件，它也很好用。但我想了解为什么我对 MSWord 文件有如此奇怪的行为以及如何修复它？

编辑：我更改了我的代码，不是为了误导那些因尝试/例外而无声失败的人。然而，感谢他们所有人在我的代码中发现了这个缺陷:)

原文

I need to change some custom properties values in many files. Here is an example of code - how I do it for a single file:

import win32com.client

MSWord = win32com.client.Dispatch("Word.Application")
MSWord.Visible = False

doc = MSWord.Documents.Open(file)
doc.CustomDocumentProperties('Some Property').Value = 'Some New Value'
doc.Save()
doc.Close()

MSWord.Quit()

Running the same code for "Excel.Application" (with minor changes - just to make it work) gives me excellent result. However when I'm using doc.Save() or doc.SaveAs(same_file) for MSWord it silently fails. I don't know why, but changes are not saved.

Now my workaround is to use SaveAs to a different file, it also works good. But I want to understand why I have such strange behaviour for MSWord files and how it can be fixed?

Edit: I changed my code, not to misdirect people with silent fail cause of try/except.
However, thanks to all of them for finding that defect in my code :)

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撞了怀 2024-08-10 07:02:03

您以错误的方式使用 CustomDocumentProperties ，正如其他人指出的那样，您看不到它，因为您正在吞下异常。

此外 - 在这里我在文档中找不到任何内容 - 更改属性时未重置 Saved 属性，因此文件未更改。

这是正确的代码：

msoPropertyTypeBoolean = 0
msoPropertyTypeDate = 1
msoPropertyTypeFloat = 2
msoPropertyTypeNumber = 3
msoPropertyTypeString = 4

import win32com.client

MSWord = win32com.client.Dispatch("Word.Application")
MSWord.Visible = False

doc = MSWord.Documents.Open(file)
csp = doc.CustomDocumentProperties
csp.Add('Some Property', False, msoPropertyTypeString, 'Some New Value')
doc.Saved = False
doc.Save()
doc.Close()

MSWord.Quit()

注意：没有错误处理，并且它绝对不具有生产质量，但它应该足以让您实现您的功能。
最后，我猜测属性类型的值（对于字符串类型，猜测是正确的），但对于其他类型可能存在一些问题。

You were using the CustomDocumentProperties in the wrong way, and as other people pointed out, you could not see it, because you were swallowing the exception.

Moreover - and here I could not find anything in the documentation - the Saved property was not reset while changing properties, and for this reason the file was not changed.

This is the correct code:

msoPropertyTypeBoolean = 0
msoPropertyTypeDate = 1
msoPropertyTypeFloat = 2
msoPropertyTypeNumber = 3
msoPropertyTypeString = 4

import win32com.client

MSWord = win32com.client.Dispatch("Word.Application")
MSWord.Visible = False

doc = MSWord.Documents.Open(file)
csp = doc.CustomDocumentProperties
csp.Add('Some Property', False, msoPropertyTypeString, 'Some New Value')
doc.Saved = False
doc.Save()
doc.Close()

MSWord.Quit()

Note: there is no error handling, and it is definitely not of production quality, but it should be enough for you to implement your functionality.
Finally, I am guessing the values of the property types (and for the string type the guess is correct) but for the others there could be some issue.

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