[pycrypto] _fastmath None !!

[Lorenz Quack]

Hi again,

no idea what's going wrong. normally pycrypto should fall back to _slowmath (a pure python implementation) when gmp is 
not installed meaning _fastmath is not available (_fastmath is a C implementation using gmp).

Maybe you could prvide some more information, like python version, pycrypto version, is gmp installed?
Also it would be a good idea to provide a small/minimalistic example demonstrating the problem.
That way it is easyier to figure out if it's a bug in pycrypto or in your code.

cheers,
//Lorenz



On 05/17/2010 04:48 PM, jd wrote:
> Hi Guys
>      I am serializing the pycrypto keys using pickle.. as suggested in one of recent posts. It is working fine, but giving following problem on cenos 5.1. (stack at the bottom of email)
>
> 'NoneType' object has no attribute 'rsa_construct'
>
>
>      I looked at the code.. it seems while constructing _fastmath is used. Any workarounds / fixes ? I do not think changing to saving tuple would help as it would also need to use __setstate__..
>
> Help is greatly appreciated.
> Thanks
> /Jd
>
> File "/tg2env/bin/paster", line 7, in ?
>      sys.exit(
>    File "/tg2env/lib/python2.4/site-packages/PasteScript-1.7.3-py2.4.egg/paste/script/command.py", line 84, in run
>      invoke(command, command_name, options, args[1:])
>    File "/tg2env/lib/python2.4/site-packages/PasteScript-1.7.3-py2.4.egg/paste/script/command.py", line 123, in invoke
>      exit_code = runner.run(args)
>    File "/tg2env/lib/python2.4/site-packages/PasteScript-1.7.3-py2.4.egg/paste/script/command.py", line 218, in run
>      result = self.command()
>    File "/tg2env/lib/python2.4/site-packages/PasteScript-1.7.3-py2.4.egg/paste/script/serve.py", line 276, in command
>      relative_to=base, global_conf=vars)
>    File "/tg2env/lib/python2.4/site-packages/PasteScript-1.7.3-py2.4.egg/paste/script/serve.py", line 311, in loadapp
>      return loadapp(
>    File "/tg2env/lib/python2.4/site-packages/PasteDeploy-1.3.3-py2.4.egg/paste/deploy/loadwsgi.py", line 204, in loadapp
>      return loadobj(APP, uri, name=name, **kw)
>    File "/tg2env/lib/python2.4/site-packages/PasteDeploy-1.3.3-py2.4.egg/paste/deploy/loadwsgi.py", line 225, in loadobj
>      return context.create()
>    File "/tg2env/lib/python2.4/site-packages/PasteDeploy-1.3.3-py2.4.egg/paste/deploy/loadwsgi.py", line 625, in create
>      return self.object_type.invoke(self)
>    File "/tg2env/lib/python2.4/site-packages/PasteDeploy-1.3.3-py2.4.egg/paste/deploy/loadwsgi.py", line 110, in invoke
>      return fix_call(context.object, context.global_conf, **context.local_conf)
>    File "/tg2env/lib/python2.4/site-packages/PasteDeploy-1.3.3-py2.4.egg/paste/deploy/util/fixtypeerror.py", line 57, in fix_call
>      val = callable(*args, **kw)
>    File "/m2svn/trunk/src/app/web/app/app/config/middleware.py", line 46, in make_app
>      if verify_license():
>    File "/m2svn/trunk/src/app/web/app/app/core/utils/utils.py", line 2221, in verify_license
>      l_info = read_license_using_embeded(license_file)
>    File "/m2svn/trunk/src/app/web/app/app/core/utils/utils.py", line 2202, in read_license_using_embeded
>      pub_key =get_embeded_key()
>    File "/m2svn/trunk/src/app/web/app/app/core/utils/utils.py", line 2197, in get_embeded_key
>      key = pickle.loads(str)
>    File "/usr/lib64/python2.4/pickle.py", line 1394, in loads
>      return Unpickler(file).load()
>    File "/usr/lib64/python2.4/pickle.py", line 872, in load
>      dispatch[key](self)
>    File "/usr/lib64/python2.4/pickle.py", line 1237, in load_build
>      setstate(state)
>    File "build/bdist.linux-x86_64/egg/Crypto/PublicKey/RSA.py", line 171, in __setstate__
> AttributeError: 'NoneType' object has no attribute 'rsa_construct'
>