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Python uses the following syntax to express list comprehensions over finite lists: S = [ 2 * x for x in range ( 100 ) if x ** 2 > 3 ] A generator expression may be used in Python versions >= 2.4 which gives lazy evaluation over its input, and can be used with generators to iterate over 'infinite' input such as the count generator function which ...
Here, the list [0..] represents , x^2>3 represents the predicate, and 2*x represents the output expression.. List comprehensions give results in a defined order (unlike the members of sets); and list comprehensions may generate the members of a list in order, rather than produce the entirety of the list thus allowing, for example, the previous Haskell definition of the members of an infinite list.
This comparison of programming languages compares how object-oriented programming languages such as C++, Java, Smalltalk, Object Pascal, Perl, Python, and others manipulate data structures. Object construction and destruction
Introduced in Python 2.4, generator expressions are the lazy evaluation equivalent of list comprehensions. Using the prime number generator provided in the above section, we might define a lazy, but not quite infinite collection.
A high-end wedding photographer and his Indian American family were subjected to the wrath of a fellow traveler who hurled sickening insults at them after their United Airlines flight.
Wild: A team that took a 2 1/2-hour flight on Friday morning became energized in the third period. Stars: Dallas went 0 for 3 on the power play, falling to a league-low 9.8% (6 for 61) at home. ...
valid declaration statements are of the form Dim declarator_list, where, for the purpose of semantic analysis, to convert the declarator_list to a list of only single declarators: The As clauses of each multiple declarator is distributed over its modified_identifier_list
The wait between Seasons 1 and 2 of Ben Stiller’s high-concept workplace drama felt longer than that stretch between 3 p.m. and 5 p.m. at the office on any given Wednesday, but finally, it’s ...