Python Mechanize：上传UTF-8文件时出现Unicode错误'；ascii'；编解码器

mechanize框架非常适合自动化前两个web屏幕。问题是它需要在表单中上载带有的文件

以下是错误前的代码部分：

br.select_form(name="form.uploadXMLDataWizardForm")
xmlFile = codecs.open("MyFile.xml", "rt", "utf8")
br.form.add_file(file_object=xmlFile, content_type="text/xml", filename="MyFile.xml", name="dataFile")
br.submit(name="$action:next")

它会在运行时导致以下错误：

    br.submit(name="$action:next")
  File "build/bdist.macosx-10.6-universal/egg/mechanize/_mechanize.py", line 541, in submit
  File "build/bdist.macosx-10.6-universal/egg/mechanize/_mechanize.py", line 530, in click
  File "build/bdist.macosx-10.6-universal/egg/mechanize/_form.py", line 2999, in click
  File "build/bdist.macosx-10.6-universal/egg/mechanize/_form.py", line 3201, in _click
  File "build/bdist.macosx-10.6-universal/egg/mechanize/_form.py", line 2350, in _click
  File "build/bdist.macosx-10.6-universal/egg/mechanize/_form.py", line 3269, in _switch_click
  File "build/bdist.macosx-10.6-universal/egg/mechanize/_form.py", line 3252, in _request_data
  File "build/bdist.macosx-10.6-universal/egg/mechanize/_form.py", line 1341, in _write_mime_data
UnicodeEncodeError: 'ascii' codec can't encode characters in position 650-651: ordinal not in range(128)

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知道如何使mechanize处理UTF-8文件的上载吗？

mechanize似乎希望文件数据是原始字节，而不是Unicode数据。尝试使用常用的

open（）

函数打开文件：

...
xmlFile = open("MyFile.xml", "rt")
...

---

使用

codecs.open（）

会使内容读取时不是UTF-8。@Ignacio我以前使用过code.open成功读取/写入UTF-8内容。你的建议是什么？：-）是的，您可以使用它来读取以UTF-8编码的文件，但它提供的不是UTF-8。就是这样！我不敢相信事情竟如此简单。谢谢