10 examples of 'list comprehension in python' in Python

Every line of 'list comprehension in python' code snippets is scanned for vulnerabilities by our powerful machine learning engine that combs millions of open source libraries, ensuring your Python code is secure.

All examples are scanned by Snyk Code

By copying the Snyk Code Snippets you agree to
this disclaimer
1042@utils.check_messages("using-constant-test", "missing-parentheses-for-call-in-test")
1043def visit_comprehension(self, node):
1044 if node.ifs:
1045 for if_test in node.ifs:
1046 self._check_using_constant_test(node, if_test)
Important

Use secure code every time

Secure your code as it's written. Use Snyk Code to scan source code in minutes – no build needed – and fix issues immediately. Enable Snyk Code

126@abstractmethod
127def visit_list_comprehension(self, o: 'mypy.nodes.ListComprehension') -> T:
128 pass
45def create_comprehension(for_node: ast.For) -> ast.comprehension:
46 return ast.comprehension(target=for_node.target, iter=for_node.iter, ifs=[])
231def is_comprehension(x):
232 """Returns true if this is a comprehension type."""
233 return isinstance(x, (ObjectComprehension, SetComprehension, ArrayComprehension))
446def visit_comprehension(self, node, parent):
447 """visit a Comprehension node by returning a fresh instance of it"""
448 newnode = nodes.Comprehension(parent)
449 newnode.postinit(
450 self.visit(node.target, newnode),
451 self.visit(node.iter, newnode),
452 [self.visit(child, newnode) for child in node.ifs],
453 getattr(node, "is_async", None),
454 )
455 return newnode
500def visit_list_comprehension(self, o: 'mypy.nodes.ListComprehension') -> str:
501 return self.dump([o.generator], o)
1216@specialize.arg(2)
1217def comprehension_helper(self, comp_node,
1218 handle_source_expr_meth="handle_expr",
1219 for_type=syms.comp_for, if_type=syms.comp_if,
1220 iter_type=syms.comp_iter,
1221 comp_fix_unamed_tuple_location=False):
1222 handle_source_expression = getattr(self, handle_source_expr_meth)
1223 fors_count = self.count_comp_fors(comp_node, for_type, if_type)
1224 comps = []
1225 for i in range(fors_count):
1226 for_node = comp_node.get_child(1)
1227 for_targets = self.handle_exprlist(for_node, ast.Store)
1228 expr = handle_source_expression(comp_node.get_child(3))
1229 assert isinstance(expr, ast.expr)
1230 if for_node.num_children() == 1:
1231 comp = ast.comprehension(for_targets[0], expr, None)
1232 else:
1233 col = comp_node.get_column()
1234 line = comp_node.get_lineno()
1235 # Modified in python2.7, see http://bugs.python.org/issue6704
1236 if comp_fix_unamed_tuple_location:
1237 expr_node = for_targets[0]
1238 assert isinstance(expr_node, ast.expr)
1239 col = expr_node.col_offset
1240 line = expr_node.lineno
1241 target = ast.Tuple(for_targets, ast.Store, line, col)
1242 comp = ast.comprehension(target, expr, None)
1243 if comp_node.num_children() == 5:
1244 comp_node = comp_iter = comp_node.get_child(4)
1245 assert comp_iter.type == iter_type
1246 ifs_count = self.count_comp_ifs(comp_iter, for_type)
1247 if ifs_count:
1248 ifs = []
1249 for j in range(ifs_count):
1250 comp_node = comp_if = comp_iter.get_child(0)
1251 ifs.append(self.handle_expr(comp_if.get_child(1)))
1252 if comp_if.num_children() == 3:
1253 comp_node = comp_iter = comp_if.get_child(2)
1254 comp.ifs = ifs
1255 if comp_node.type == iter_type:
1256 comp_node = comp_node.get_child(0)
1257 assert isinstance(comp, ast.comprehension)
1258 comps.append(comp)
1259 return comps
1276def visit_ComprehensionNode(self, node):
1277 if node.expr_scope:
1278 self.env_stack.append(self.env)
1279 self.env = node.expr_scope
1280 # Skip append node here
1281 self._visit(node.loop)
1282 if node.expr_scope:
1283 self.env = self.env_stack.pop()
1284 return node
584def _visit_first_comprehension_generator(self, node):
585 # type: (ComprehensionNode) -> None
586 if node.generators:
587 # first generator's iterator is visited in the current scope
588 first_generator = node.generators[0]
589 self.visit(first_generator.iter)
691def handle_gen_for (self, node):
692 return self._handle_comp_for(node)

Related snippets