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Ticket Resolution Summary Owner Reporter
#32 fixed patch to make libyaml compile in visual studio xi roel _ dot _ vanhout _ at _ gmail _ dot _ com

Reported by roel _ dot _ vanhout _ at _ gmail _ dot _ com, 8 years ago.

Description

2 issues:

  • pointer arithmetic on void*'s is a gcc-ism. I 'solved' it by casting them all to a unsigned char (typedef'd), I'm not sure if a unsigned char is guaranteed to be the same size as a void* on all architectures - it worked on 32-bit Windows, FWIW.
  • A shorthand struct assignment didn't work, I'm not sure if it's valid C or not but whatever, by writing it out in full it compiled ok.
#73 invalid numpy arrays ... xi lal.george@…

Reported by lal.george@…, 6 years ago.

Description

What is the best way to transfer very large numpy arrays using PyYAML?

Ideally I would like to do something like:

m = ; # a very large numpy array

y = "---\nx : '%s'\n" % (m.dumps())

z = yaml.load(y)

However, the yaml.load returns an exception:

'utf8 codec can't decode byte #x80: unexpected code byte in "<string>", position 9.

Since I have quoted the string, yaml should not be diving into it - correct?

Thanks.

Best,

Lal

#54 fixed load() fails to load consecutive documents xi cems at lanl dot gov

Reported by cems at lanl dot gov, 7 years ago.

Description

Description: if a file contains multiple documents, yaml.load() fails to work after the first document is read.

I have a text file called test.yml that looks like this: --- as: "333 775260" --- zz: "top"

the following code works as expected:

f = open("test.xml") x = yaml.load_all(f) [ i for i in x]

that loads both documents. it does it lazily using a generator x.

The following does NOT work as exepcted: f = open("test.xml") yaml.load(f) yaml.load(f)

the first yaml.load(f) works and loads the first document. the second one fails. From the documentation I beleive yaml.load should consecutively load the next document upon each invocation on the stream. The error message upon failing to load varies depending upon what is in the second document. In the case shown here is the stack trace from ipython2.5

In [153]: f = open("test4.yml")

In [154]: yaml.load(f) Out[154]: {'as': '333 775260'}

In [155]: yaml.load(f)


<type 'exceptions.AttributeError?'> Traceback (most recent call last)

/Users/cems/Documents/Collaboration/brettin/poisson_estimates/ace_to_yaml/<ipython console> in <module>()

/sw/lib/python2.5/site-packages/yaml/init.py in load(stream, Loader)

64 loader = Loader(stream) 65 if loader.check_data():

---> 66 return loader.get_data()

67 68 def safe_load_all(stream):

/sw/lib/python2.5/site-packages/yaml/constructor.py in get_data(self)

36 # Construct and return the next document. 37 if self.check_node():

---> 38 return self.construct_document(self.get_node())

39 40 def g(): yield None

/sw/lib/python2.5/site-packages/yaml/composer.py in get_node(self)

21 # Get the root node of the next document. 22 if not self.check_event(StreamEndEvent?):

---> 23 return self.compose_document()

24 25 def compose_document(self):

/sw/lib/python2.5/site-packages/yaml/composer.py in compose_document(self)

33 34 # Compose the root node.

---> 35 node = self.compose_node(None, None)

36 37 # Drop the DOCUMENT-END event.

/sw/lib/python2.5/site-packages/yaml/composer.py in compose_node(self, parent, index)

50 return self.anchors[anchor] 51 event = self.peek_event()

---> 52 anchor = event.anchor

53 if anchor is not None: 54 if anchor in self.anchors:

<type 'exceptions.AttributeError?'>: 'NoneType?' object has no attribute 'anchor'

In [156]:

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