falsetru

class CurriedProc < Proc
  attr_accessor :arity
  def parameters
    (1..arity).map { |i| [:opt, "_#{i}".to_sym] }
  end
end

class Proc
  def bind(pos, value)
    raise ArgumentError.new("wrong position of argument (#{pos} for #{arity})") unless (1..arity).include?(pos)

falsetru

# See https://code.google.com/p/selenium/source/browse/py/selenium/webdriver/support/wait.py

from selenium import webdriver
from selenium.webdriver.support.wait import WebDriverWait

driver = webdriver.Firefox()
driver.get('http://jsfiddle.net/falsetru/M6tdQ/show/')
WebDriverWait(driver, 10).until(lambda driver: driver.find_element_by_id('status').text == 'ready')
driver.execute_script('alert("done")')
#driver.quit()

falsetru

functions = []
 
for val in ['foo', 'bar', 'baz']:
    def f(val=val):
        return val
    functions.append(f)
 
for func in functions:
    print(func())

falsetru

import functools
import sys

@functools.lru_cache(maxsize=None) # Python 3.2+
def f(n):
    if n == 1:
        return 1
    elif n % 2 == 0:
        return 1 + f(n // 2)
    else:

falsetru

class DataMeta(type):
    def __new__(cls, name, bases, attrs):
        def check_type(k, v):
            cls._validate(attrs[k]['type'], v)

        def set_default(self, kwargs):
            for key_meta, value_meta in attrs.items():
                if key_meta.startswith('__') and key_meta.endswith('__'):
                    continue
                if not isinstance(value_meta, dict):