我有这个代码:
class SomeClass:
@classmethod
def func1(cls,arg1):
#---Do Something---
@classmethod
def func2(cls,arg1):
#---Do Something---
# A 'function map' that has function name as its keys and the above function
# objects as values
func_map={'func1':func1,'func2':func2}
@classmethod
def func3(cls,arg1):
# following is a dict(created by reading a config file) that
# contains func names as keys and boolean as values that tells
# the program whether or not to run that function
global funcList
for func in funcList:
if funcList[func]==True:
cls.func_map[func](arg1) #TROUBLING PART!!!
if _name__='main'
SomeClass.func3('Argumentus-Primus')
当我运行它时,我不断收到错误:
Exception TypeError: "'classmethod' object is not callable"
我无法弄清楚这有什么问题,希望您能提供帮助。
最佳答案
在定义类之前,您不能创建对类方法的引用。您必须将其移出类定义。然而,使用全局函数映射来决定运行什么真的很尴尬。如果您描述了您要如何处理此问题,我们可能会建议一个更好的解决方案。
class SomeClass(object):
@classmethod
def func1(cls, arg1):
print("Called func1({})".format(arg1))
@classmethod
def func2(cls, arg1):
print("Call func2({})".format(arg1))
@classmethod
def func3(cls, arg1):
for fnName,do in funcList.iteritems():
if do:
try:
cls.func_map[fnName](arg1)
except KeyError:
print("Don't know function '{}'".format(fnName))
# can't create function map until class has been created
SomeClass.func_map = {
'func1': SomeClass.func1,
'func2': SomeClass.func2
}
if __name__=='__main__':
funcList = {'func1':True, 'func2':False}
SomeClass.func3('Argumentus-Primus')
关于python - 尝试调用类方法的代码中的各种错误,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/11058686/