在构造函数,赋值和方法调用方面,PyCharm IDE非常擅长分析我的源代码并确定每个变量应该是什么类型.我喜欢它,因为它给了我很好的代码完成和参数信息,如果我尝试访问不存在的属性,它会给我警告.
但是当谈到参数时,它什么都不知道.代码完成下拉列表无法显示任何内容,因为它们不知道参数的类型.代码分析无法查找警告.
class Person:
def __init__(self, name, age):
self.name = name
self.age = age
peasant = Person("Dennis", 37)
# PyCharm knows that the "peasant" variable is of type Person
peasant.dig_filth() # shows warning -- Person doesn't have a dig_filth method
class King:
def repress(self, peasant):
# PyCharm has no idea what type the "peasant" parameter should be
peasant.knock_over() # no warning even though knock_over doesn't exist
King().repress(peasant)
# Even if I call the method once with a Person instance, …