Python標準庫--inspect

 

inspect模塊是針對模塊,類,方法,功能等對象提供些有用的方法。例如能夠幫助咱們檢查類的內容,檢查方法的代碼,提取和格式化方法的參數等。python

import inspect
import os

class Test(object):
    """Test Class """

    def test(self):
        self.fuc = lambda x: x

class Testone(Test):
    pass

print(inspect.ismodule(os))         # True
print(inspect.isclass(Test))        # True
print(inspect.getdoc(Test))         # Test Class

print(inspect.getsourcefile(Test))   # 文件路徑
print(inspect.getsourcelines(Test))  # 代碼塊,每行一個元素,組成數組
print(inspect.getsource(Test))       # 獲取代碼塊本來內容,帶縮進

 打印全局中的變量

#打印全局變量中的模塊對象
myglobals = {}
myglobals.update(globals())
modules = [value
           for key, value in myglobals.items()
           if inspect.ismodule(value)]
print(modules)

輸出結果:
[<module 'builtins' (built-in)>, <module 'inspect' from 'D:\\python\\python\\lib\\inspect.py'>, <module 'os' from 'D:\\python\\python\\lib\\os.py'>]

 查看類和類對象有哪些方法能夠調用 

# 查看類的可調用方法
for name, value in inspect.getmembers(Test, callable):
    print("    Callable:", name)

for name, value in inspect.getmembers(Test(), callable):
    print(" Instance Callable:", name)

獲取棧的所有調用信息

def debug():
    import inspect
    print(inspect.stack()[0][3])
    print(inspect.stack()[1][3])
    caller_name = inspect.stack()[1][3]
    # print("[DEBUG]: enter {}()".format(caller_name) )

def say_hello():
    debug()
    # print("hello!")

def say_goodbye():
    debug()
    # print("goodbye!")

if __name__ == '__main__':
    say_hello()
    say_goodbye()

運行結果:
debug
say_hello
debug
say_goodbye

  

 

  1. inspect.ismodule(object): 是否爲模塊express

  2. inspect.isclass(object):是否爲類數組

  3. inspect.ismethod(object):是否爲方法(bound method written in python)函數

  4. inspect.isfunction(object):是否爲函數(python function, including lambda expression)ui

  5. inspect.isgeneratorfunction(object):是否爲python生成器函數spa

  6. inspect.isgenerator(object):是否爲生成器debug

  7. inspect.istraceback(object): 是否爲tracebackcode

  8. inspect.isframe(object):是否爲frameorm

  9. inspect.iscode(object):是否爲code對象

  10. inspect.isbuiltin(object):是否爲built-in函數或built-in方法

  11. inspect.isroutine(object):是否爲用戶自定義或者built-in函數或方法

  12. inspect.isabstract(object):是否爲抽象基類

  13. inspect.ismethoddescriptor(object):是否爲方法標識符

  14. inspect.isdatadescriptor(object):是否爲數字標識符,數字標識符有__get__ 和__set__屬性; 一般也有__name__和__doc__屬性

  15. inspect.isgetsetdescriptor(object):是否爲getset descriptor

  16. inspect.ismemberdescriptor(object):是否爲member descriptor

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