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import sys
from lib2to3 import refactor
# The following fixers are "safe": they convert Python 2 code to more
# modern Python 2 code. They should be uncontroversial to apply to most
# projects that are happy to drop support for Py2.5 and below. Applying
# them first will reduce the size of the patch set for the real porting.
lib2to3_fix_names_stage1 = set([
'lib2to3.fixes.fix_apply',
'lib2to3.fixes.fix_except',
'lib2to3.fixes.fix_exec',
'lib2to3.fixes.fix_exitfunc',
'lib2to3.fixes.fix_funcattrs',
'lib2to3.fixes.fix_has_key',
'lib2to3.fixes.fix_idioms',
# 'lib2to3.fixes.fix_import', # makes any implicit relative imports explicit. (Use with ``from __future__ import absolute_import)
'lib2to3.fixes.fix_intern',
'lib2to3.fixes.fix_isinstance',
'lib2to3.fixes.fix_methodattrs',
'lib2to3.fixes.fix_ne',
# 'lib2to3.fixes.fix_next', # would replace ``next`` method names
# with ``__next__``.
'lib2to3.fixes.fix_numliterals', # turns 1L into 1, 0755 into 0o755
'lib2to3.fixes.fix_paren',
# 'lib2to3.fixes.fix_print', # see the libfuturize fixer that also
# adds ``from __future__ import print_function``
# 'lib2to3.fixes.fix_raise', # uses incompatible with_traceback() method on exceptions
'lib2to3.fixes.fix_reduce', # reduce is available in functools on Py2.6/Py2.7
'lib2to3.fixes.fix_renames', # sys.maxint -> sys.maxsize
# 'lib2to3.fixes.fix_set_literal', # this is unnecessary and breaks Py2.6 support
'lib2to3.fixes.fix_repr',
'lib2to3.fixes.fix_standarderror',
'lib2to3.fixes.fix_sys_exc',
'lib2to3.fixes.fix_throw',
'lib2to3.fixes.fix_tuple_params',
'lib2to3.fixes.fix_types',
'lib2to3.fixes.fix_ws_comma', # can perhaps decrease readability: see issue #58
'lib2to3.fixes.fix_xreadlines',
])
# The following fixers add a dependency on the ``future`` package on order to
# support Python 2:
lib2to3_fix_names_stage2 = set([
# 'lib2to3.fixes.fix_buffer', # perhaps not safe. Test this.
# 'lib2to3.fixes.fix_callable', # not needed in Py3.2+
'lib2to3.fixes.fix_dict', # TODO: add support for utils.viewitems() etc. and move to stage2
# 'lib2to3.fixes.fix_execfile', # some problems: see issue #37.
# We use a custom fixer instead (see below)
# 'lib2to3.fixes.fix_future', # we don't want to remove __future__ imports
'lib2to3.fixes.fix_getcwdu',
# 'lib2to3.fixes.fix_imports', # called by libfuturize.fixes.fix_future_standard_library
# 'lib2to3.fixes.fix_imports2', # we don't handle this yet (dbm)
'lib2to3.fixes.fix_input',
'lib2to3.fixes.fix_itertools',
'lib2to3.fixes.fix_itertools_imports',
'lib2to3.fixes.fix_filter',
'lib2to3.fixes.fix_long',
'lib2to3.fixes.fix_map',
# 'lib2to3.fixes.fix_metaclass', # causes SyntaxError in Py2! Use the one from ``six`` instead
'lib2to3.fixes.fix_next',
'lib2to3.fixes.fix_nonzero', # TODO: cause this to import ``object`` and/or add a decorator for mapping __bool__ to __nonzero__
'lib2to3.fixes.fix_operator', # we will need support for this by e.g. extending the Py2 operator module to provide those functions in Py3
'lib2to3.fixes.fix_raw_input',
# 'lib2to3.fixes.fix_unicode', # strips off the u'' prefix, which removes a potentially helpful source of information for disambiguating unicode/byte strings
# 'lib2to3.fixes.fix_urllib', # included in libfuturize.fix_future_standard_library_urllib
# 'lib2to3.fixes.fix_xrange', # custom one because of a bug with Py3.3's lib2to3
'lib2to3.fixes.fix_zip',
])
libfuturize_fix_names_stage1 = set([
'libfuturize.fixes.fix_absolute_import',
'libfuturize.fixes.fix_next_call', # obj.next() -> next(obj). Unlike
# lib2to3.fixes.fix_next, doesn't change
# the ``next`` method to ``__next__``.
'libfuturize.fixes.fix_print_with_import',
'libfuturize.fixes.fix_raise',
# 'libfuturize.fixes.fix_order___future__imports', # TODO: consolidate to a single line to simplify testing
])
libfuturize_fix_names_stage2 = set([
'libfuturize.fixes.fix_basestring',
# 'libfuturize.fixes.fix_add__future__imports_except_unicode_literals', # just in case
'libfuturize.fixes.fix_cmp',
'libfuturize.fixes.fix_division_safe',
'libfuturize.fixes.fix_execfile',
'libfuturize.fixes.fix_future_builtins',
'libfuturize.fixes.fix_future_standard_library',
'libfuturize.fixes.fix_future_standard_library_urllib',
'libfuturize.fixes.fix_metaclass',
'libpasteurize.fixes.fix_newstyle',
'libfuturize.fixes.fix_object',
# 'libfuturize.fixes.fix_order___future__imports', # TODO: consolidate to a single line to simplify testing
'libfuturize.fixes.fix_unicode_keep_u',
# 'libfuturize.fixes.fix_unicode_literals_import',
'libfuturize.fixes.fix_xrange_with_import', # custom one because of a bug with Py3.3's lib2to3
])
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