3 examples of 'creating a dictionary in python using for loop' in Python

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1634def visitDict(self, node):
1635 self.update_lineno(node)
1636 has_dstar = None in node.keys
1637 if not has_dstar:
1638 for k, v in zip(node.keys, node.values):
1639 self.visit(k)
1640 self.visit(v)
1641 self.emit('BUILD_MAP', len(node.keys))
1642 else:
1643 chunks = 0
1644 in_chunk = 0
1645
1646 def out_chunk():
1647 nonlocal chunks, in_chunk
1648 if in_chunk:
1649 self.emit('BUILD_MAP', in_chunk)
1650 chunks += 1
1651 in_chunk = 0
1652
1653 for k, v in zip(node.keys, node.values):
1654 if k is None:
1655 out_chunk()
1656 self.visit(v)
1657 chunks += 1
1658 else:
1659 self.visit(k)
1660 self.visit(v)
1661 in_chunk += 1
1662
1663 out_chunk()
1664 self.emit('BUILD_MAP_UNPACK', chunks)
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45def create_comprehension(for_node: ast.For) -> ast.comprehension:
46 return ast.comprehension(target=for_node.target, iter=for_node.iter, ifs=[])
365def 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)

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