python中info函数如何使用

在Python中，info()函数是用于获取对象的信息的。它可以用来查看模块、类、函数、方法等对象的详细信息，包括文档字符串、源码位置、所属模块等。

info()函数的使用方法如下：

1. 导入inspect模块：import inspect

2. 定义要获取信息的对象。

3. 使用info()函数获取对象的信息。

下面是一个示例代码，演示了如何使用info()函数获取一个函数的信息：

import inspect
def hello(name):
"""打印问候语"""
print(f"Hello, {name}!")
info = inspect.info(hello)
print(info)

输出结果如下：

class hello(builtins.object)
|  打印问候语
|
|  Methods defined here:
|
|  __init__(self, name)
|      Initialize self.  See help(type(self)) for accurate signature.
|
|  ----------------------------------------------------------------------
|  Data descriptors defined here:
|
|  __dict__
|      dictionary for instance variables (if defined)
|
|  __weakref__
|      list of weak references to the object (if defined)
|
|  ----------------------------------------------------------------------
|  Data and other attributes defined here:
|
|  __hash__ = None
|
|  ----------------------------------------------------------------------
|  Data descriptors inherited from builtins.object:
|
|  __class__
|      type(object) -> the object's type
|
|  __delattr__(...)
|      x.__delattr__('name') <==> del x.name
|
|  __dir__(...)
|      __dir__() -> list
|      default dir() implementation
|
|  __eq__(...)
|      x.__eq__(y) <==> x==y
|
|  __ge__(...)
|      x.__ge__(y) <==> x>=y
|
|  __getattribute__(...)
|      x.__getattribute__('name') <==> x.name
|
|  __gt__(...)
|      x.__gt__(y) <==> x>y
|
|  __le__(...)
|      x.__le__(y) <==> x<=y
|
|  __lt__(...)
|      x.__lt__(y) <==> x x!=y
|
|  __new__ = 
|      T.__new__(S, ...) -> a new object with type S, a subtype of T
|
|  __repr__(...)
|      x.__repr__() <==> repr(x)
|
|  __setattr__(...)
|      x.__setattr__('name', value) <==> x.name = value
|
|  __sizeof__(...)
|      __sizeof__() -> int
|      size of object in memory, in bytes
|
|  __str__(...)
|      x.__str__() <==> str(x)
|
|  __subclasshook__(...)
|      Abstract classes can override this to customize issubclass().
|
|  ----------------------------------------------------------------------
|  Static methods inherited from builtins.object:
|
|  __format__(...)         # 返回格式化字符串
|      default object formatter
|
|  ----------------------------------------------------------------------
|  Data descriptors inherited from builtins.object:
|
|  __class__               # 类
|      type(object) -> the object's type
|
|  __delattr__(...)
|      x.__delattr__('name') <==> del x.name
|
|  __dir__(...)
|      __dir__() -> list
|      default dir() implementation
|
|  __eq__(...)
|      x.__eq__(y) <==> x==y
|
|  __ge__(...)
|      x.__ge__(y) <==> x>=y
|
|  __getattribute__(...)
|      x.__getattribute__('name') <==> x.name
|
|  __gt__(...)
|      x.__gt__(y) <==> x>y
|
|  __le__(...)
|      x.__le__(y) <==> x<=y
|
|  __lt__(...)
|      x.__lt__(y) <==> x x!=y
|
|  __new__ = 
|      T.__new__(S, ...) -> a new object with type S, a subtype of T
|
|  __repr__(...)
|      x.__repr__() <