Python ast.Delete() Examples

The following are 8 code examples of ast.Delete(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module ast , or try the search function .
Example #1
Source File: onelinerizer.py    From onelinerizer with MIT License 6 votes vote down vote up 
def onelinerize(original):
    # original :: string
    # :: string
    t = ast.parse(original)
    table = symtable.symtable(original, '<string>', 'exec')

    original = original.strip()

    # If there's only one line anyways, be lazy
    if len(original.splitlines()) == 1 and \
       len(t.body) == 1 and \
       type(t.body[0]) in (ast.Delete, ast.Assign, ast.AugAssign, ast.Print,
                           ast.Raise, ast.Assert, ast.Import, ast.ImportFrom,
                           ast.Exec, ast.Global, ast.Expr, ast.Pass):
        return original

    return get_init_code(t, table)
Example #2
Source File: test_ast.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def test_delete(self):
        self.stmt(ast.Delete([]), "empty targets on Delete")
        self.stmt(ast.Delete([None]), "None disallowed")
        self.stmt(ast.Delete([ast.Name("x", ast.Load())]),
                  "must have Del context")
Example #3
Source File: test_ast.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def test_delete(self):
        self.stmt(ast.Delete([]), "empty targets on Delete")
        self.stmt(ast.Delete([None]), "None disallowed")
        self.stmt(ast.Delete([ast.Name("x", ast.Load())]),
                  "must have Del context")
Example #4
Source File: hgawk_grammar.py    From histogrammar-python with Apache License 2.0 5 votes vote down vote up 
def p_del_stmt(p):
    '''del_stmt : DEL exprlist'''
    #               1        2
    ctx_to_store(p[2], ast.Del)          # interesting fact: evaluating Delete nodes with ctx=Store() causes a segmentation fault in Python!
    if isinstance(p[2], ast.Tuple) and not p[2].paren:
        p[0] = ast.Delete(p[2].elts, rule=inspect.currentframe().f_code.co_name, **p[1][1])
    else:
        p[0] = ast.Delete([p[2]], rule=inspect.currentframe().f_code.co_name, **p[1][1])

# pass_stmt: 'pass'
Example #5
Source File: test_ast.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def test_delete(self):
        self.stmt(ast.Delete([]), "empty targets on Delete")
        self.stmt(ast.Delete([None]), "None disallowed")
        self.stmt(ast.Delete([ast.Name("x", ast.Load())]),
                  "must have Del context")
Example #6
Source File: definitions.py    From vkbottle with MIT License 5 votes vote down vote up 
def delete_statement(d: ast.Delete):
    return "".join(f"delete {find(target)};" for target in d.targets)
Example #7
Source File: translation.py    From mochi with MIT License 5 votes vote down vote up 
def translate_assign(self, exp, visible=True):
        if len(exp) != 3:
            raise MochiSyntaxError(exp, self.filename)

        left = exp[1]
        left_type = type(left)
        if left_type is Symbol:
            targets = [self.create_assign_target(left)]
            ref_symbol = left
            if not visible:
                self.hidden_vars.append(ref_symbol.name)
        elif issequence_except_str(left):
            targets = [self.create_assign_targets(left)]
            ref_symbol = NONE_SYM
        else:
            raise MochiSyntaxError(exp, self.filename)

        pre = []
        right_value_builder, right_value = self.translate(exp[2], False)
        if type(right_value) is ast.Expr:
            right_value = right_value.value
        assign = ast.Assign(targets=targets,
                            value=right_value,
                            lineno=right_value.lineno,
                            col_offset=0)
        pre.extend(right_value_builder)
        pre.append(assign)
        _, ref = self.translate_ref(ref_symbol)
        return pre, ref

    #@syntax('del')
    #def translate_del(self, exp):
    #    return (ast.Delete(targets=[ast.Name(id=exp[1].name,
    #                                         lineno=exp[1].lineno,
    #                                         col_offset=exp[1].col_offset,
    #                                         ctx=ast.Del())],
    #                       lineno=exp[0].lineno,
    #                       col_offset=exp[0].col_offset),), self.translate_ref(NONE_SYM)[1]
Example #8
Source File: keywords.py    From wemake-python-styleguide with MIT License 5 votes vote down vote up 
def _check_keyword(self, node: ast.AST) -> None:
        if isinstance(node, self._forbidden_keywords):
            if isinstance(node, ast.Delete):
                message = 'del'
            else:
                message = node.__class__.__qualname__.lower()

            self.add_violation(WrongKeywordViolation(node, text=message))