Python reload() Function
Python Built-in FunctionsDescription
reload()Used to reload a previously loaded module.
In Python2.x versions,reload()it is a built-in function; inPython2.x ~ Python3.3later versions it was moved toimpthe package (Python2.x can also import the imp package to use it), and after Python3.4 it was moved to theimportlibpackage.
See also:Python3 reload() Function
Syntax
Python2.x versions have it as a built-in function; you can use it directly:
reload(module)
Python2.x ~ versions before Python3.3:
import imp imp.reload(module)
or
from imp import reload reload(module)
Python3.4 and later versions：
import importlib importlib.reload(module)
or
from importlib import reload reload(module)
Parameters
- module -- The module object.
Return Value
Returns the module object.
Examples
The following examples demonstrate the usage of reload():
Python2.x: Reload the sys module and set the default encoding to utf8
>>>import sys
>>> sys.getdefaultencoding() # Current default encoding
'ascii'
>>> reload(sys) # Use reload
<module 'sys' (built-in)>
>>> sys.setdefaultencoding('utf8') # Set encoding
>>> sys.getdefaultencoding()
'utf8'
>>>
Python2.x~Python3.3: Reload the sys module
>>> import sys, imp
>>> imp.reload(sys)
<module 'sys' (built-in)>
>>> imp.reload(sys)
<module 'sys' (built-in)>
>=Python3.4: Reload the sys module
>>> import sys, importlib
>>> importlib.reload(sys)
<module 'sys' (built-in)>
>>> importlib.reload(sys)
<module 'sys' (built-in)>