Changes between Initial Version and Version 1 of PythonTagScheme

Timestamp:

05/12/06 08:33:32 (7 years ago)

Author:

xi

Comment:

--

PythonTagScheme

@@ +1 @@
+The list of standard YAML tags and corresponding Python types.
+{{{
+!!null ''                   # None
+!!bool 'yes'                # bool
+!!int '3...'                # int or long
+!!float '3.14...'           # float
+!!binary '...base64...'     # str
+!!timestamp 'YYYY-...'      # datetime.datetime
+!!omap [ ... ]              # list of pairs (note that key uniqueness is not checked)
+!!pairs [ ... ]             # list of pairs
+!!set { ... }               # set
+!!str '...'                 # str or unicode (ASCII scalars are converted to str)
+!!seq [ ... ]               # list
+!!map { ... }               # dict
+}}}
+
+The list of Python-specific YAML tags and corresponding Python types.
+Tags representing complex objects such as class instances are in a separate list.
+Note that in most cases there are two tags that represent the same Python type
+(e.g. {{{!!map}}} and {{{!!python/dict}}}). In such cases, standard YAML tags
+are prioritized, and Python-specific form is added for completeness.
+{{{
+!!python/none ''            # None
+!!python/bool 'True'        # bool
+!!python/str '...'          # str
+!!python/unicode '...'      # unicode
+!!python/int '123...'       # int
+!!python/long '123...'      # long
+!!python/float '3.14...'    # float
+!!python/complex '1+1j'     # complex
+!!python/list [ ... ]       # list
+!!python/tuple [ ... ]      # tuple
+!!python/dict { ... }       # dict
+}}}
+
+To represent class instances and other complex objects, the following tags are used.
+{{{
+!!python/name:module.name           # module.name (types, classes, and functions)
+!!python/module:module              # module
+!!python/object:module.name         # module.name instance with the specified attributes
+    { ...attributes... }
+!!python/object/apply:module.name   # reduce protocol
+    args: [ ... arguments ... ]
+    kwds: { ... keywords ... }
+    state: ... state ...
+    listitems: [ ... listitems ... ]
+    dictitems: { ... dictitems ... }
+!!python/object/apply:module.name   # short form of !!python/object/apply
+    [ ... arguments ... ]
+!!python/object/new:module.name     # reduce protocol (__new__)
+    args: [ ... arguments ... ]
+    kwds: { ... keywords ... }
+    state: ... state ...
+    listitems: [ ... listitems ... ]
+    dictitems: { ... dictitems ... }
+!!python/object/new:module.name     # short form of !!python/object/new
+    [ ... arguments ... ]
+}}}