10 examples of 'python for loop with multiple variables' in Python

365
def FOR(self, node):
366
    """
367
    Process bindings for loop variables.
368
    """
369
    vars = []
370
    def collectLoopVars(n):
371
        if hasattr(n, 'name'):
372
            vars.append(n.name)
373
        else:
374
            for c in n.getChildNodes():
375
                collectLoopVars(c)
376
377
    collectLoopVars(node.assign)
378
    for varn in vars:
379
        if (isinstance(self.scope.get(varn), Importation)
380
                # unused ones will get an unused import warning
381
                and self.scope[varn].used):
382
            self.report(messages.ImportShadowedByLoopVar,
383
                        node.lineno, varn, self.scope[varn].source.lineno)
384
385
    self.handleChildren(node)

994
def setLoopVar(self, loop_var):
995
    self.loop_var = loop_var

69
def test_for():
70
    src = dedent("""\
71
    for a in [1,2]:
72
        a
73
74
    for a1 in 1,"":
75
        a1
76
    """)
77
    check_p(src, 1)

66
def _while_loop(cond, body, loop_vars,  # pylint: disable=redefined-outer-name
67
                shape_invariants=None, parallel_iterations=10,  # pylint: disable=unused-argument
68
                back_prop=True, swap_memory=False,  # pylint: disable=unused-argument
69
                maximum_iterations=None, name=None):  # pylint: disable=unused-argument
70
  i = 0
71
  while (cond(*loop_vars) and
72
         (maximum_iterations is None or i < maximum_iterations)):
73
    loop_vars = body(*loop_vars)
74
    i += 1
75
  return loop_vars

258
def emit_sequential_loop(self, codegen_state, iname, iname_dtype,
259
        lbound, ubound, inner):
260
    ecm = codegen_state.expression_to_code_mapper
261
262
    from pymbolic.mapper.stringifier import PREC_NONE, PREC_SUM
263
    from genpy import For
264
265
    return For(
266
            (iname,),
267
            "range(%s, %s + 1)"
268
            % (
269
                ecm(lbound, PREC_NONE, "i"),
270
                ecm(ubound, PREC_SUM, "i"),
271
                ),
272
            inner)

453
def visitFor(self, node, scope):
454
    self.visit(node.target, scope, 1)
455
    self.visit(node.iter, scope)
456
    self.visit(node.body, scope)
457
    if node.orelse:
458
        self.visit(node.orelse, scope)

88
def visit_For(self, node):
89
    self.make_tab()
90
    self.write('for ')
91
    self.visit(node.target)
92
    self.write(' in ')
93
    self._in_args = True
94
    self.visit(node.iter)
95
    self._in_args = False
96
    self.write(':\n')
97
    self._indent += 1
98
    for n in node.body:
99
        self.visit(n)
100
    self._indent -= 1

152
def visit_For(self, node):
153
    self._assign([node.target])

677
def visitGenExprFor(self, node):
678
    start = self.newBlock()
679
    anchor = self.newBlock()
680
    end = self.newBlock()
681
    self.setups.push((LOOP, start))
682
    self.emit('SETUP_LOOP', end)
683
    if node.is_outmost:
684
        self.loadName('.0')
685
    else:
686
        self.visit(node.iter)
687
        self.emit('GET_ITER')
688
    self.nextBlock(start)
689
    self.set_lineno(node, force=True)
690
    self.emit('FOR_ITER', anchor)
691
    self.nextBlock()
692
    self.visit(node.assign)
693
    return (start, anchor, end)

45
def create_comprehension(for_node: ast.For) -> ast.comprehension:
46
    return ast.comprehension(target=for_node.target, iter=for_node.iter, ifs=[])