Source: ply
Version: 3.9-1
Severity: wishlist
Tags: patch
User: reproducible-bui...@lists.alioth.debian.org
Usertags: toolchain randomness
X-Debbugs-Cc: reproducible-b...@lists.alioth.debian.org
Hi,
Whilst working on the Reproducible Builds effort [0], we noticed
that ply generates non-determinstic output.
This is affecting the reproducibility of other packages such as
astropy:
---
a/python3-astropy_3.0-1_amd64.deb/usr/lib/python3/dist-packages/astropy/units/format/generic_lextab.py
2018-02-13 13:36:43.000000000 +0000
+++
b/python3-astropy_3.0-1_amd64.deb/usr/lib/python3/dist-packages/astropy/units/format/generic_lextab.py
2018-02-13 13:36:43.000000000 +0000
@@ -11,7 +11,7 @@
# generic_lextab.py. This file automatically created by PLY (version 3.9).
Don't edit!
_tabversion = '3.8'
-_lextokens = set(('UFLOAT', 'DOUBLE_STAR', 'STAR', 'FUNCNAME', 'UNIT',
'PERIOD', 'SOLIDUS', 'CLOSE_PAREN', 'OPEN_PAREN', 'SIGN', 'UINT', 'CARET'))
+_lextokens = set(('UNIT', 'PERIOD', 'DOUBLE_STAR', 'CARET', 'UINT',
'SIGN', 'STAR', 'SOLIDUS', 'FUNCNAME', 'OPEN_PAREN', 'UFLOAT', 'CLOSE_PAREN'))
_lexreflags = 32
_lexliterals = ''
_lexstateinfo = {'INITIAL': 'inclusive'}
Patch attached.
[0] https://reproducible-builds.org/
Regards,
--
,''`.
: :' : Chris Lamb
`. `'` la...@debian.org / chris-lamb.co.uk
`-
diff --git a/ply/lex.py b/ply/lex.py
index 0f3e464..8cf6b6b 100644
--- a/ply/lex.py
+++ b/ply/lex.py
@@ -179,7 +179,7 @@ class Lexer:
with open(filename, 'w') as tf:
tf.write('# %s.py. This file automatically created by PLY (version
%s). Don\'t edit!\n' % (basetabmodule, __version__))
tf.write('_tabversion = %s\n' % repr(__tabversion__))
- tf.write('_lextokens = set(%s)\n' % repr(tuple(self.lextokens)))
+ tf.write('_lextokens = set(%s)\n' %
repr(sorted(tuple(self.lextokens))))
tf.write('_lexreflags = %s\n' % repr(self.lexreflags))
tf.write('_lexliterals = %s\n' % repr(self.lexliterals))
tf.write('_lexstateinfo = %s\n' % repr(self.lexstateinfo))
