ruamel.yaml is a YAML parser/emitter that supports roundtrip preservation of comments, seq/map flow style, and map key order
Project description
ruamel.yaml
ruamel.yaml is a YAML 1.2 loader/dumper package for Python.
ChangeLog
0.12.17 (2016-11-15): - only the RoundTripLoader included the Resolver that supports YAML 1.2 now all loaders do (reported by mixmastamyk) 0.12.16 (2016-11-13): - allow dot char (and many others) in anchor name Fix issue 72 (reported by Shalon Wood) - Slightly smarter behaviour dumping strings when no style is specified. Single string scalars that start with single quotes or have newlines now are dumped double quoted: "'abc\nklm'" instead of '''abc klm''' 0.12.14 (2016-09-21): - preserve round-trip sequences that are mapping keys (prompted by stackoverflow question 39595807 from Nowox) 0.12.13 (2016-09-15): - Fix for issue #60 representation of CommentedMap with merge keys incorrect (reported by Tal Liron) 0.12.11 (2016-09-06): - Fix issue 58 endless loop in scanning tokens (reported by Christopher Lambert) 0.12.10 (2016-09-05): - Make previous fix depend on unicode char width (32 bit unicode support is a problem on MacOS reported by David Tagatac) 0.12.8 (2016-09-05): - To be ignored Unicode characters were not properly regex matched (no specific tests, PR by Haraguroicha Hsu) 0.12.7 (2016-09-03): - fixing issue 54 empty lines with spaces (reported by Alex Harvey) 0.12.6 (2016-09-03): - fixing issue 46 empty lines between top-level keys were gobbled (but not between sequence elements, nor between keys in netsted mappings (reported by Alex Harvey) 0.12.5 (2016-08-20): - fixing issue 45 preserving datetime formatting (submitted by altuin) Several formatting parameters are preserved with some normalisation: - preserve 'T', 't' is replaced by 'T', multiple spaces between date and time reduced to one. - optional space before timezone is removed - still using microseconds, but now rounded (.1234567 -> .123457) - Z/-5/+01:00 preserved 0.12.4 (2016-08-19): - Fix for issue 44: missing preserve_quotes keyword argument (reported by M. Crusoe) 0.12.3 (2016-08-17): - correct 'in' operation for merged CommentedMaps in round-trip mode (implementation inspired by J.Ngo, but original not working for merges) - iteration over round-trip loaded mappings, that contain merges. Also keys(), items(), values() (Py3/Py2) and iterkeys(), iteritems(), itervalues(), viewkeys(), viewitems(), viewvalues() (Py2) - reuse of anchor name now generates warning, not an error. Round-tripping such anchors works correctly. This inherited PyYAML issue was brought to attention by G. Coddut (and was long standing https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=515634) suppressing the warning: import warnings from ruamel.yaml.error import ReusedAnchorWarning warnings.simplefilter("ignore", ReusedAnchorWarning) 0.12.2 (2016-08-16): - minor improvements based on feedback from M. Crusoe https://bitbucket.org/ruamel/yaml/issues/42/ 0.12.0 (2016-08-16): - drop support for Python 2.6 - include initial Type information (inspired by M. Crusoe) 0.11.15 (2016-08-07): - Change to prevent FutureWarning in NumPy, as reported by tgehring ("comparison to None will result in an elementwise object comparison in the future") 0.11.14 (2016-07-06): - fix preserve_quotes missing on original Loaders (as reported by Leynos, bitbucket issue 38) 0.11.13 (2016-07-06): - documentation only, automated linux wheels 0.11.12 (2016-07-06): - added support for roundtrip of single/double quoted scalars using: ruamel.yaml.round_trip_load(stream, preserve_quotes=True) 0.11.0 (2016-02-18): - RoundTripLoader loads 1.2 by default (no sexagesimals, 012 octals nor yes/no/on/off booleans
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