3 ms·

What do you find is missing?

flavio81 9y ago
I do like Python, a lot, but you asked for it... the list is long! - true, effortless metaprogramming - speed close to C by use of type declarations and fixed arrays; this means up to 100x faster than CPython. No, PyPy, Jython and Cython don't get quite there. - no Global Interpreter Lock! - the condition-restarts error handling system, which is deluxe error handling and recovery from errors. - a very flexible type system, plus very strong typing. - an extremely powerful object oriented system (CLOS) -- light years ahead of most OOP systems including Python. This means, having multimethods/multiple dispatch, method combinations, around/after/before methods, multiple inheritance, and a MOP. - true lambdas, not Python's one-line joke lambdas. - true interactive development, able to compile functions on the fly and thus change them while the code is running. Able to redefine classes while the code is running. - able to call Java libs and C libs at the same time, with ABCL - will run on many platforms and in the JVM without modifications to the code - separate namespaces for functions, vars, keywords and everything - tail call optimizations - something like Quicklisp (pip isn't as good) - built-in rational numbers, complex numbers, using the same operators for regular numbers - the LOOP macro, which I find better than Python's list comprehensions.
- montrose 9y ago
  Thank you, this is very interesting. In what way are Python's lambdas restricted? Do they literally have to fit on one line? Do you have to use a separate version of + to add complex numbers in Python? Do you prefer loop because it's more concise or because you can say things you can't say in Python? Can you give me a couple examples of things that work better with loop? (As you can tell from my questions, I don't know much about Python, but as a Lisp hacker I'm curious about other Lisp hackers' view of it.)
  - cmcaine 9y ago
    Python lambdas cannot contain statements, only expressions. Typical python contains a lot of statements, so that's a bit annoying. You can define inner functions and so on, and most of the times that I want to use lambdas it's just because I've been stuck in a language without *-comprehensions for too long. + works fine on complex numbers. I'm not super familiar with the loop macro, but it lets you do both things similar to a python comprehension and to a python for loop. I don't think it does anything you can't do in python.

I do like Python, a lot, but you asked for it... the list is long! - true, effortless metaprogramming - speed close to C by use of type declarations and fixed arrays; this means up to 100x faster than CPython. No, PyPy, Jython and Cython don't get quite there. - no Global Interpreter Lock! - the condition-restarts error handling system, which is deluxe error handling and recovery from errors. - a very flexible type system, plus very strong typing. - an extremely powerful object oriented system (CLOS) -- light years ahead of most OOP systems including Python. This means, having multimethods/multiple dispatch, method combinations, around/after/before methods, multiple inheritance, and a MOP. - true lambdas, not Python's one-line joke lambdas. - true interactive development, able to compile functions on the fly and thus change them while the code is running. Able to redefine classes while the code is running. - able to call Java libs and C libs at the same time, with ABCL - will run on many platforms and in the JVM without modifications to the code - separate namespaces for functions, vars, keywords and everything - tail call optimizations - something like Quicklisp (pip isn't as good) - built-in rational numbers, complex numbers, using the same operators for regular numbers - the LOOP macro, which I find better than Python's list comprehensions.

montrose 9y ago
Thank you, this is very interesting. In what way are Python's lambdas restricted? Do they literally have to fit on one line? Do you have to use a separate version of + to add complex numbers in Python? Do you prefer loop because it's more concise or because you can say things you can't say in Python? Can you give me a couple examples of things that work better with loop? (As you can tell from my questions, I don't know much about Python, but as a Lisp hacker I'm curious about other Lisp hackers' view of it.)
- cmcaine 9y ago
  Python lambdas cannot contain statements, only expressions. Typical python contains a lot of statements, so that's a bit annoying. You can define inner functions and so on, and most of the times that I want to use lambdas it's just because I've been stuck in a language without *-comprehensions for too long. + works fine on complex numbers. I'm not super familiar with the loop macro, but it lets you do both things similar to a python comprehension and to a python for loop. I don't think it does anything you can't do in python.