python-ldap-dev

Install problem [python-ldap-2.0.0pre04]

[Donal H. <don...@ma...>]

Hey...

Just upgraded to python-ldap-2.0.0pre04 today and tried the example in
the README and got the following error.

Have I setup something arseways?

Regards

Donal
DCU

setup.cfg
----------------------------------------------------------------------------------------
# Section for compiling the C extension module
# for wrapping OpenLDAP 2 libs

[_ldap]
class = OpenLDAP2
library_dirs = /usr/local/lib
include_dirs = /usr/local/include
libs = lber ldap resolv

# Installation options

[install]

compile = 1
optimize = 1
----------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------
donal@linux28:~/mailman_proj > python
Python 2.2 (#3, Dec 27 2001, 01:35:33)
[GCC 2.95.2 19991024 (release)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import ldap
>>> l = ldap.initialize("earth.dcu.ie:389")
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "/usr/local/lib/python2.2/site-packages/ldap/functions.py", line
73, in initialize
    return LDAPObject(uri,trace_level,trace_file)
  File "/usr/local/lib/python2.2/site-packages/ldap/ldapobject.py", line
46, in __init__
    self._l = self._ldap_call(_ldap.initialize,uri)
  File "/usr/local/lib/python2.2/site-packages/ldap/ldapobject.py", line
59, in _ldap_call
    result = ldap._ldap_call(func,*args,**kwargs)
  File "/usr/local/lib/python2.2/site-packages/ldap/__init__.py", line
31, in _ldap_call
    result = apply(func,args,kwargs)
ldap.LDAPError: (2, 'No such file or directory')
>>>
----------------------------------------------------------------------------------------

Re: Install problem [python-ldap-2.0.0pre04]

[Michael <mi...@st...>]

Donal Hunt wrote:
> 
> >>> l = ldap.initialize("earth.dcu.ie:389")

In opposite to ldap.open() the function ldap.initialize() expects a
LDAP URL as stated in ldap.initialize.__doc__ and the updated docs
(see http://python-ldap.sourceforge.net/doc/python-ldap/node4.html).

Therefore your funtion call has to be:
>>> l = ldap.initialize("ldap://earth.dcu.ie:389")

> ldap.LDAPError: (2, 'No such file or directory')
> >>>

This error message is misleading I admit. It comes from the OpenLDAP
2 libs. Hmm, ldap.initialize() could check for LDAP URL format to
provide a better error message by raising a specific ValueError
exception.

Ciao, Michael.

Re: Install problem [python-ldap-2.0.0pre04]

[Michael <mi...@st...>]

Donal Hunt wrote:
> 
> Is ldap.open still usable?

Yes. Mainly ldap.open() generates a LDAP URL and calls
ldap.initialize(). This is implemented in Python code (see
Lib/ldap/functions.py).

> or is the new standard to use LDAP URLs??

It is the new standard. OpenLDAP 2's ldap.h marks ldap_open() as
deprecated. Well, this does not mean a lot but ldap.initialize()
also enables your application to use ldaps:// (LDAP over SSL to
separate port) and ldapi:// (LDAP over Unix domain socket).

Ciao, Michael.

Re: Install problem [python-ldap-2.0.0pre04]

[Jacek K. <ja...@bn...>]

On Sun, Feb 10, 2002 at 07:04:46PM +0100, Michael Str=F6der wrote:
> > or is the new standard to use LDAP URLs??
>=20
> It is the new standard. OpenLDAP 2's ldap.h marks ldap_open() as
> deprecated.=20
AFAIK it is pepreciated in favor of ldap_init() (which initializes=20
connection object, but doesn't connect till the first operation).

ldap_initialize() is a quite different thing, IMHO much more usefull.

Greets,
Jacek

Re: Install problem [python-ldap-2.0.0pre04]

[Michael <mi...@st...>]

Jacek Konieczny wrote:
> 
> On Sun, Feb 10, 2002 at 07:04:46PM +0100, Michael Ströder wrote:
> > > or is the new standard to use LDAP URLs??
> >
> > It is the new standard. OpenLDAP 2's ldap.h marks ldap_open() as
> > deprecated.
> AFAIK it is pepreciated in favor of ldap_init() (which initializes
> connection object, but doesn't connect till the first operation).
> 
> ldap_initialize() is a quite different thing, IMHO much more usefull.

Hmm, what to do? I stripped the wrapping functions for ldap_open()
and ldap_init() from LDAPObject.c. Is anyone in favour of having
these wrapped directly?

I would rather vote for making ldap.initialize() more smart or
implement a smart separate function. E.g. trying to set the right
protocol version would be nice (try LDAPv3 first and correctly fall
back to LDAPv2).

Ciao, Michael.