look for a module without import it

[Michele Petrazzo]

Hi list,
I have to know if a module are present on the system, but I don't want
to import it. Only know if it is present.
I think that a loop on the site-packages directory can do the work, but
is there another solution?

Thanks,
Michele

[Fredrik Lundh]

Re: look for a module without import it

Michele Petrazzo wrote:

I have to know if a module are present on the system, but I don't want
to import it. Only know if it is present.
>
I think that a loop on the site-packages directory can do the work, but
is there another solution?

more module.py

print "I'M MODULE!"

python

>>import imp
>>imp.find_modu le("os")

(<open file 'C:\python25\li b\os.py', mode 'U' at 0x00A7E2F0>, 'C:\\python25\\ lib\\os.py', ('.py',
'U', 1))

>>imp.find_modu le("sys")

(None, 'sys', ('', '', 6))

>>imp.find_modu le("foobar")

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named foobar

>>imp.find_modu le("module")

(<open file 'module.py', mode 'U' at 0x00A7E2F0>, 'module.py', ('.py', 'U', 1))

>>import module

I'M MODULE!

</F>

[Michele Petrazzo]

Re: look for a module without import it

Fredrik Lundh wrote:

>more module.py

print "I'M MODULE!"
>

>python

>>>import imp imp.find_module ("os")

It was!

Michele