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Subject: [GitHub] [incubator-milagro-crypto-c] GuillaumeCisco edited a comment on
 issue #38: Python wrappers
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Date: Wed, 14 Aug 2019 16:57:48 -0000
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GuillaumeCisco edited a comment on issue #38: Python wrappers
URL: https://github.com/apache/incubator-milagro-crypto-c/issues/38#issuecomment-521329526
 
 
   What I tried:
   Using the file `test_pair_FP256BN.c` which use `CURVE_Order_FP256BN`.
   Creating the .so (from python wrapper generated directory) using:
   `gcc -g -I../../include -I../../../../include -fPIC -Wall -Wextra ../../test/test_pair_FP256BN.c -shared -o ./test_pair_FP256BN.so`
   With a file named test_pair_FP256BN.py:
   ```
   import cffi
   
   ffi = cffi.FFI()
   ffi.cdef("""
      int main();
   """)
   
   
   lib = ffi.dlopen("./rom.so")
   lib.main()
   ```
   
   Then:
   ```
   $> python
   Python 2.7.15+ (default, Nov 27 2018, 23:36:35) 
   [GCC 7.3.0] on linux2
   Type "help", "copyright", "credits" or "license" for more information.
   >>> import test_pair_FP256BN
   Traceback (most recent call last):
     File "<stdin>", line 1, in <module>
   ImportError: ./test_pair_FP256BN.so: undefined symbol: CURVE_Order_FP256BN
   ```
   There is something I'm not doing correctly...

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