相关疑难解决方法(0)

怎么if __name__ == "__main__":办？

# Threading example
import time, thread

def myfunction(string, sleeptime, lock, *args):
    while True:
        lock.acquire()
        time.sleep(sleeptime)
        lock.release()
        time.sleep(sleeptime)

if __name__ == "__main__":
    lock = thread.allocate_lock()
    thread.start_new_thread(myfunction, ("Thread #: 1", 2, lock))
    thread.start_new_thread(myfunction, ("Thread #: 2", 2, lock))

我的目标是创建一个将度数转换为弧度的程序.公式是(度*3.14)/ 180.但是python不断给我这个错误:

Traceback (most recent call last):
  File "2.py", line 6, in <module>
    main()
  File "2.py", line 4, in main
    degrees = (degrees * 3.14) / 180
TypeError: can't multiply sequence by non-int of type 'float'

从这段代码:

def main():
    degrees = raw_input("Enter your degrees: ")
    float(degrees)
    degrees = (degrees * 3.14) / 180

main()

编辑:谢谢大家的帮助!