Is there a way to import a modified script module twice?

[Phipps Xue]

Dear all,

I wanna reload a script module after it's modified so that I can use
the new function immediately.

Is there any help for that? It's appreciated very much if any example
provided!
TIA

Phipps

[Peter Otten]

Phipps Xue wrote:

I wanna reload a script module after it's modified so that I can use
the new function immediately.

<original changeme.py>
def fun():
print "original"
</original changeme.py>

Now on the command line:

import changeme
from changeme import fun
fun() original changeme.fun() original

Now change changeme to
<modified changeme.py>
def fun():
print changed"
</modified changeme.py>

Back to the commandline, without restarting the interpreter:
reload(changeme) <module 'changeme' from 'changeme.py'> fun() original changeme.fun() changed

Note that reload() has no effects on the function imported with

from module import *

General rule: You'd better not use reload().
The minimum precaution is to always use the qualified name.

Peter

[Gerhard Häring]

Phipps Xue wrote:

Dear all,

I wanna reload a script module after it's modified so that I can use
the new function immediately. [...]

Use the reload() builtin function. The parameter for reload is the
module to reload. Yes, modules are objects, too in Python :)

-- Gerhard