[New-bugs-announce] [issue24312] miniDOM._write_data() give a vague error message when the argument isn't of type str

[Oz Tamir]

New submission from Oz Tamir:

In Python 3.3, 3.4 and on 3.6.0a0 (default:dfe62f685538) the following snippet:

>>> from xml.dom.minidom import getDOMImplementation
>>> doc = getDOMImplementation().createDocument(None, 'Issues Tracker', None)
>>> tracker = doc.documentElement
>>> new_issue = doc.createElement('issue')
>>> new_issue.setAttribute('id', 10)
>>> tracker.appendChild(new_issue)
>>> with open('file.xml', 'w') as f:
...     doc.writexml(f, addindent='\t', newl='\n')


will produce the following exception:
[Traceback]
AttributeError: 'int' object has no attribute 'replace'

which I found to be vague and rather confusing.

----------
components: XML
messages: 244283
nosy: oz.tamir
priority: normal
severity: normal
status: open
title: miniDOM._write_data() give a vague error message when the argument isn't of type str
type: behavior
versions: Python 3.3, Python 3.4, Python 3.6

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue24312>
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