def _Tuple(self, t):
self.write("(")
if len(t.elts) == 1:
elt = t.elts[0]
self.dispatch(elt)
self.write(",")
else:
interleave(lambda: self.write(","), self.dispatch, t.elts)
self.write(")")
def _ImportFrom(self, t):
# A from __future__ import may affect unparsing, so record it.
if t.module and t.module == '__future__':
self.future_imports.extend(n.name for n in t.names)
self.fill('from ')
self.write('.' * t.level)
if t.module:
self.write(t.module)
self.write(' import ')
interleave(lambda: self.write(','), self.dispatch, t.names)
def _generic_With(self, t, async_=False):
self.fill("async with " if async_ else "with ")
if hasattr(t, 'items'):
interleave(lambda: self.write(","), self.dispatch, t.items)
else:
self.dispatch(t.context_expr)
if t.optional_vars:
self.write(" as ")
self.dispatch(t.optional_vars)
self.enter()
self.dispatch(t.body)
self.leave()
def _Dict(self, t):
self.write("{")
def write_key_value_pair(k, v):
self.dispatch(k)
self.write(":")
self.dispatch(v)
def write_item(item):
k, v = item
if k is None:
# for dictionary unpacking operator in dicts {**{'y': 2}}
# see PEP 448 for details
self.write("**")
self.dispatch(v)
else:
write_key_value_pair(k, v)
interleave(lambda: self.write(","), write_item, zip(t.keys, t.values))
self.write("}")
def _Dict(self, t):
self.write("{")
noncomment_keys = []
comment_groups = []
comment_group = []
_LOG.info('keys : %s', t.keys)
_LOG.info('values: %s', t.values)
for key in t.keys:
if isinstance(key, Comment):
comment_group.append(key)
continue
comment_groups.append(comment_group)
comment_group = []
noncomment_keys.append(key)
noncomment_values = []
comment_groups_iter = iter(comment_groups)
try:
comment_group = next(comment_groups_iter)
except StopIteration:
comment_group = None
for value in t.values:
if isinstance(value, Comment):
comment_group.append(value)
continue
noncomment_values.append(value)
try:
comment_group = next(comment_groups_iter)
except StopIteration:
comment_group = None
def write_triple(triple):
(k, v, comments) = triple
for comment in comments:
self.dispatch(comment)
self.dispatch(k)
self.write(": ")
self.dispatch(v)
interleave(lambda: self.write(", "), write_triple,
zip(noncomment_keys, noncomment_values, comment_groups))
self.write("}")
def _generic_With(self, t, async_=False):
"""Unparse With or AsyncWith node.
Rather than handling just:
With/AsyncWith(withitem* items, stmt* body)
handle:
With/AsyncWith(withitem* items, stmt* body, string? type_comment)
"""
if not hasattr(t, 'type_comment') or t.type_comment is None:
super()._generic_With(t, async_)
return
self.fill("async with " if async_ else "with ")
interleave(lambda: self.write(", "), self.dispatch, t.items)
self.enter()
self._write_type_comment(t.type_comment)
self.dispatch(t.body)
self.leave()
def _BoolOp(self, syntax):
# TODO: push this to astunparse (upstream)
self.write('(')
op_ = ' {} '.format(self.boolops[syntax.op.__class__.__name__])
interleave(lambda: self.write(op_), self.dispatch, syntax.values)
self.write(')')
def _Delete(self, t):
self.fill("del ")
interleave(lambda: self.write(","), self.dispatch, t.targets)
def _ExtSlice(self, t):
interleave(lambda: self.write(','), self.dispatch, t.dims)
def _Import(self, t):
self.fill('import ')
interleave(lambda: self.write(','), self.dispatch, t.names)
def _List(self, t):
self.write("[")
interleave(lambda: self.write(","), self.dispatch, t.elts)
self.write("]")
def _Nonlocal(self, t):
self.fill("nonlocal ")
interleave(lambda: self.write(","), self.write, t.names)
def _Global(self, t):
self.fill("global ")
interleave(lambda: self.write(","), self.write, t.names)
"""Unparse With or AsyncWith node.
Rather than handling just:
With/AsyncWith(withitem* items, stmt* body)
handle:
With/AsyncWith(withitem* items, stmt* body, string? type_comment)
"""
if not hasattr(t, 'type_comment') or t.type_comment is None:
super()._generic_With(t, async)
return
self.fill("async with " if async else "with ")
interleave(lambda: self.write(", "), self.dispatch, t.items)
self.enter()
self._write_type_comment(t.type_comment)
self.dispatch(t.body)
self.leave()
def _FormattedValue(self, t):
self.write("{")
self.dispatch(t.value)
if t.conversion is not None and t.conversion != -1:
self.write("!")
self.write(self.format_conversions[t.conversion])
if t.format_spec is not None:
self.write(":")
if isinstance(t.format_spec, ast.Str) or isinstance(
t.format_spec, typed_ast.ast3.Str):