Custom Query (121 matches)

Reported by nothingmuch@…, 4 years ago.

Hi,

8. Merijn Brand reported a bug against YAML::LibYAML involving a compliation error of scanner.c on HPUX:

 http://rt.cpan.org/Public/Bug/Display.html?id=42405

Supplied is a patch that hopefully resolves this issue.

Reported by Andrey Somov <py4fun@…>, 4 years ago.

When PyYAML is run on alternative VM (jython for instance) the order of the dictionary keys may be different. Unfortunately PyYAML relies on the order in some cases. The attached patches show that tests fail only when the sequence of the keys is reversed. These cases were found under Java 5. (for Java 6 the order is the same as for CPython). To avoid unexpected bugs in future it would be safe to change the implementation to use a kind of an ordered dictionary.(or to respect the order in some other way). There is no guarantee the list is complete. This is just a coincidence it was found.

Reported by pschmitt@…, 4 years ago.

I dont understand how PyYAML reads YML files with "Block Mapping", (I call these "Nested variables" in my example):

>>> document = """
 Variable 1:
   x: a
   y: b
   z: c
 Variable 2:
   1: a
   2: b
   3: c
 """
>>> yml=yaml.load(document)
>>> yml.keys()
['Variable 2', 'Variable 1']

>>> yml["Variable 1"].keys()
 ['y', 'x', 'z']

So it looks like PyYAML loads the document in reverse order, "Variable 2" is read before "Variable 1". That's fine. But why is ymlVariable 1?.keys() in a random order? It seems like it should either be chronological (x,y,z) or reverse chronological (z,y,x).

I'm having a hard time parsing tickets #29 and #116, which might be related... Can you offer up some insight?

PS: Sorry if this is the wrong place for a question... I couldn't find a mailing list.