Ticket #61 (new defect)

Opened 7 years ago

Last modified 3 months ago

Raise ValueError on bad time stamps

Reported by: miki@… Owned by: xi
Priority: normal Component: pysyck
Severity: normal Keywords:
Cc:

Description

Currently if a timestamp is badly formatted, syck raises:

Traceback (most recent call last):
  File "<pyshell#2>", line 1, in <module>
    yaml = syck.load(open("/var/spool/articles/20070917/9a45fab335a148a5999d8d000a3c23fe/article.yaml").read())
  File "/usr/local/lib/python2.5/site-packages/syck/loaders.py", line 408, in load
    return loader.load()
  File "/usr/local/lib/python2.5/site-packages/syck/loaders.py", line 50, in load
    return self._convert(node, {})
  File "/usr/local/lib/python2.5/site-packages/syck/loaders.py", line 67, in _convert
    node_to_object)
  File "/usr/local/lib/python2.5/site-packages/syck/loaders.py", line 84, in _convert
    object = self.construct(node)
  File "/usr/local/lib/python2.5/site-packages/syck/loaders.py", line 174, in construct
    return constructor(node)
  File "/usr/local/lib/python2.5/site-packages/syck/loaders.py", line 242, in construct_timestamp
    values = match.groupdict()
AttributeError: 'NoneType' object has no attribute 'groupdict'

which is cryptic.

construct_timestamp should check the if the value was matched:

    def construct_timestamp(self, node):
        match = self.timestamp_expr.match(node.value)

        if not match:
            raise ValueError, "bad time stamp: %s" % node.value

Change History

comment:1 Changed 7 years ago by xi

Could you post the part of the input yaml file that breaks syck?

comment:2 Changed 7 years ago by anonymous

>>> from datetime import datetime
>>> t = syck.dump(datetime.now())
>>> t
'--- !timestamp 2007-09-19T09:48:46.485859\n'
>>> n = t[:14] + " == " + t[14:]
>>> n
'--- !timestamp ==  2007-09-19T09:48:46.485859\n'
>>> syck.load(n)

Traceback (most recent call last):
  File "<pyshell#33>", line 1, in <module>
    syck.load(n)
  File "/usr/local/lib/python2.5/site-packages/syck/loaders.py", line 408, in load
    return loader.load()
  File "/usr/local/lib/python2.5/site-packages/syck/loaders.py", line 50, in load
    return self._convert(node, {})
  File "/usr/local/lib/python2.5/site-packages/syck/loaders.py", line 84, in _convert
    object = self.construct(node)
  File "/usr/local/lib/python2.5/site-packages/syck/loaders.py", line 174, in construct
    return constructor(node)
  File "/usr/local/lib/python2.5/site-packages/syck/loaders.py", line 242, in construct_timestamp
    values = match.groupdict()
AttributeError: 'NoneType' object has no attribute 'groupdict'
>>> 

(There is some noise on my network protocol, so I sometime get these errors)

comment:3 Changed 6 months ago by maskodok <galihadiputro87@…>

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comment:11 Changed 3 months ago by liwa <dirosie46@…>

The second issue is that the emitter escapes non-ASCII characters even when all characters are printable (according to 'c-printable' in the YAML spec) when using an encoding (UTF8) that supports such characters. I don't find this as elegant as could be. Instead of the "Fran\xE7ais" output above, I would have hoped for the UTF8-encoded byte string Fran\xc3\xa7ais\n.

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