Python Error: Able to run the program from command line but not from IDE

Question

I am trying to use Charm Cryptography library. I have installed the library and I can see the eggs inside the Python/Lib/site-packages. When I run the below program using command line it does but when I try using Eclipse with PyDev plugin it gives me this error. I am using Python 2.7, Windows 7. Please let me know if any other information is required.

Traceback (most recent call last):
  File "C:\Users\raunak\Documents\workspace1\ABETest\src\test\ABETest.py", line 6, in <module>
    from charm.toolbox.pairinggroup import PairingGroup,GT
  File "C:\Python27\Lib\site-packages\Charm_Crypto-0.42-py2.7-win32.egg\charm\toolbox\pairinggroup.py", line 2, in <module>
    from charm.core.math.pairing import pairing,ZR,G1,G2,GT,init,pair,hashPair,H,random,serialize,deserialize,ismember,order
ImportError: DLL load failed: The specified module could not be found.


from charm.toolbox.pairinggroup import PairingGroup,GT
from charm.schemes.abenc.abenc_waters09 import CPabe09
group = PairingGroup('SS512')
cpabe = CPabe09(group)
msg = group.random(GT)
(master_secret_key, master_public_key) = cpabe.setup()
policy = '((ONE or THREE) and (TWO or FOUR))'
attr_list = ['THREE', 'ONE', 'TWO']
secret_key = cpabe.keygen(master_public_key, master_secret_key, attr_list)
cipher_text = cpabe.encrypt(master_public_key, msg, policy)
decrypted_msg = cpabe.decrypt(master_public_key, secret_key, cipher_text)
print decrypted_msg == msg

Update:

Python Path from IDE:
['C:\\Users\\raunak\\Documents\\workspace1\\ABETest\\src\\test', 
'C:\\Users\\raunak\\Documents\\workspace1\\ABETest\\src', 
'C:\\Python27\\Lib\\site-packages\\distribute-0.6.35-py2.7.egg', 
'C:\\Python27\\Lib\\site-packages\\Charm_Crypto-0.42-py2.7-win32.egg', 
'C:\\Python27\\DLLs', 
'C:\\Python27\\lib', 
'C:\\Python27\\lib\\plat-win', 
'C:\\Python27\\lib\\lib-tk', 'C:\\Python27', 
'C:\\Python27\\lib\\site-packages', 
'C:\\eclipse\\plugins\\org.python.pydev_2.7.3.2013031601\\pysrc\\pydev_sitecustomize', 
'C:\\Windows\\system32\\python27.zip', 
'C:\\Python27\\lib\\plat-win']

Python From Command Line:
['C:\\', 
'C:\\Python27\\lib\\site-packages\\distribute-0.6.35-py2.7.egg', 
'C:\\%JYTHONPATH%', 
'C:\\Windows\\system32\\python27.zip', 
'C:\\Python27\\DLLs', 
'C:\\Python27\\lib', 
'C:\\Python27\\lib\\plat-win', 
'C:\\Python27\\lib\\lib-tk', 
'C:\\Python27', 
'C:\\Python27\\lib\\site-packages', 
'C:\\Python27\\lib\\site-packages\\Charm_Crypto-0.42-py2.7-win32.egg']

Even I have the same problem, did the problem resolved for you? — Sailesh Kotha, Feb 12 '15 at 14:54

score 0 · Answer 1 · answered Mar 29 '13 at 21:10

0

It's probably a Python path problem. Compare running:

import sys
print sys.path

in your command line vs. through PyDev.

Once you find the missing item, you can then add to the python path like any other list, for example:

import os
sys.path.append(os.path.join("C:\\", "folder", "file"))

answered Mar 29 '13 at 21:10

Justin Harris

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I could only hope if the thing was so simple. I have the Python path configured. I am able to run this both from Command Line and Eclipse – Raunak Agarwal Mar 29 '13 at 21:13
Were the two paths the same? It could be that you have extra stuff in one path causing the interpreter to look in the wrong place for something. – Justin Harris Mar 29 '13 at 21:17
I have added the output of the Python Path from the command Line and IDE. – Raunak Agarwal Mar 29 '13 at 21:32
Did you try setting the python path in eclipse to the path from the command line? – Justin Harris Mar 29 '13 at 22:33
I don't think so the error is related to the Python Path. It clearly says that there are certain DLL's missing. I will try the Dependency Walker to track that out. – Raunak Agarwal Mar 29 '13 at 23:02

Python Error: Able to run the program from command line but not from IDE

1 Answers1