pip install went ok, but when i try to call the module i get:
[root@alarm ~]# python2
Python 2.7.8 (default, Sep 24 2014, 05:50:37)
[GCC 4.8.2 20131219 (prerelease)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
from smbus import SMBus
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c: In function '_cffi_const_I2C_SMBUS_BLOCK_DATA':
/usr/lib/python2.7/site-packages/smbus/pycache/_cffi__x484c8eddxe317607c.c:517:30: error: 'I2C_SMBUS_BLOCK_DATA' undeclared (first use in this function)
o = _cffi_from_c_int_const(I2C_SMBUS_BLOCK_DATA);
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffi__x484c8eddxe317607c.c:54:8: note: in definition of macro '_cffi_from_c_int_const'
(((x) > 0) ? \
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:517:30: note: each undeclared identifier is reported only once for each function it appears in
o = _cffi_from_c_int_const(I2C_SMBUS_BLOCK_DATA);
^
/usr/lib/python2.7/site-packages/smbus/pycache__/_cffix484c8eddxe317607c.c:54:8: note: in definition of macro '_cffi_from_c_int_const'
(((x) > 0) ? \
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c: In function '_cffi_const_I2C_SMBUS_BLOCK_MAX':
/usr/lib/python2.7/site-packages/smbus/pycache/_cffi__x484c8eddxe317607c.c:531:30: error: 'I2C_SMBUS_BLOCK_MAX' undeclared (first use in this function)
o = _cffi_from_c_int_const(I2C_SMBUS_BLOCK_MAX);
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffi__x484c8eddxe317607c.c:54:8: note: in definition of macro '_cffi_from_c_int_const'
(((x) > 0) ? \
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffi__x484c8eddxe317607c.c: In function '_cffi_const_I2C_SMBUS_BLOCK_PROC_CALL':
/usr/lib/python2.7/site-packages/smbus/pycache/_cffi__x484c8eddxe317607c.c:545:30: error: 'I2C_SMBUS_BLOCK_PROC_CALL' undeclared (first use in this function)
o = _cffi_from_c_int_const(I2C_SMBUS_BLOCK_PROC_CALL);
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffi__x484c8eddxe317607c.c:54:8: note: in definition of macro '_cffi_from_c_int_const'
(((x) > 0) ? \
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffi__x484c8eddxe317607c.c: In function '_cffi_const_I2C_SMBUS_BYTE':
/usr/lib/python2.7/site-packages/smbus/pycache/_cffi__x484c8eddxe317607c.c:559:30: error: 'I2C_SMBUS_BYTE' undeclared (first use in this function)
o = _cffi_from_c_int_const(I2C_SMBUS_BYTE);
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffi__x484c8eddxe317607c.c:54:8: note: in definition of macro '_cffi_from_c_int_const'
(((x) > 0) ? \
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c: In function '_cffi_const_I2C_SMBUS_BYTE_DATA':
/usr/lib/python2.7/site-packages/smbus/pycache__/_cffix484c8eddxe317607c.c:573:30: error: 'I2C_SMBUS_BYTE_DATA' undeclared (first use in this function)
o = _cffi_from_c_int_const(I2C_SMBUS_BYTE_DATA);
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:54:8: note: in definition of macro '_cffi_from_c_int_const'
(((x) > 0) ? \
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c: In function '_cffi_const_I2C_SMBUS_I2C_BLOCK_BROKEN':
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:587:30: error: 'I2C_SMBUS_I2C_BLOCK_BROKEN' undeclared (first use in this function)
o = _cffi_from_c_int_const(I2C_SMBUS_I2C_BLOCK_BROKEN);
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:54:8: note: in definition of macro '_cffi_from_c_int_const'
(((x) > 0) ? \
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c: In function '_cffi_const_I2C_SMBUS_I2C_BLOCK_DATA':
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:601:30: error: 'I2C_SMBUS_I2C_BLOCK_DATA' undeclared (first use in this function)
o = _cffi_from_c_int_const(I2C_SMBUS_I2C_BLOCK_DATA);
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:54:8: note: in definition of macro '_cffi_from_c_int_const'
(((x) > 0) ? \
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c: In function '_cffi_const_I2C_SMBUS_PROC_CALL':
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:615:30: error: 'I2C_SMBUS_PROC_CALL' undeclared (first use in this function)
o = _cffi_from_c_int_const(I2C_SMBUS_PROC_CALL);
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:54:8: note: in definition of macro '_cffi_from_c_int_const'
(((x) > 0) ? \
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c: In function '_cffi_const_I2C_SMBUS_QUICK':
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:629:30: error: 'I2C_SMBUS_QUICK' undeclared (first use in this function)
o = _cffi_from_c_int_const(I2C_SMBUS_QUICK);
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:54:8: note: in definition of macro '_cffi_from_c_int_const'
(((x) > 0) ? \
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c: In function '_cffi_const_I2C_SMBUS_READ':
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:643:30: error: 'I2C_SMBUS_READ' undeclared (first use in this function)
o = _cffi_from_c_int_const(I2C_SMBUS_READ);
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:54:8: note: in definition of macro '_cffi_from_c_int_const'
(((x) > 0) ? \
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c: In function '_cffi_const_I2C_SMBUS_WORD_DATA':
/usr/lib/python2.7/site-packages/smbus/pycache/_cffi__x484c8eddxe317607c.c:657:30: error: 'I2C_SMBUS_WORD_DATA' undeclared (first use in this function)
o = _cffi_from_c_int_const(I2C_SMBUS_WORD_DATA);
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffi__x484c8eddxe317607c.c:54:8: note: in definition of macro '_cffi_from_c_int_const'
(((x) > 0) ? \
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffi__x484c8eddxe317607c.c: In function '_cffi_const_I2C_SMBUS_WRITE':
/usr/lib/python2.7/site-packages/smbus/pycache/_cffi__x484c8eddxe317607c.c:671:30: error: 'I2C_SMBUS_WRITE' undeclared (first use in this function)
o = _cffi_from_c_int_const(I2C_SMBUS_WRITE);
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffi__x484c8eddxe317607c.c:54:8: note: in definition of macro '_cffi_from_c_int_const'
(((x) > 0) ? \
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c: In function '_cffi_check_union_i2c_smbus_data':
/usr/lib/python2.7/site-packages/smbus/pycache__/_cffix484c8eddxe317607c.c:684:12: error: dereferencing pointer to incomplete type
(void)((p->byte) << 1);
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:685:12: error: dereferencing pointer to incomplete type
(void)((p->word) << 1);
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:686:33: error: dereferencing pointer to incomplete type
{ unsigned char(*tmp)[34] = &p->block; (void)tmp; }
^
/usr/lib/python2.7/site-packages/smbus/pycache__/_cffix484c8eddxe317607c.c: In function '_cffi_layout_union_i2c_smbus_data':
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:691:58: error: field 'y' has incomplete type
struct _cffi_aligncheck { char x; union i2c_smbus_data y; };
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:693:12: error: invalid application of 'sizeof' to incomplete type 'union i2c_smbus_data'
sizeof(union i2c_smbus_data),
^
In file included from /usr/lib/python2.7/site-packages/smbus/pycache__/_cffix484c8eddxe317607c.c:3:0:
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:695:20: error: invalid use of undefined type 'union i2c_smbus_data'
offsetof(union i2c_smbus_data, byte),
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:696:39: error: dereferencing pointer to incomplete type
sizeof(((union i2c_smbus_data *)0)->byte),
^
In file included from /usr/lib/python2.7/site-packages/smbus/pycache__/_cffix484c8eddxe317607c.c:3:0:
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:697:20: error: invalid use of undefined type 'union i2c_smbus_data'
offsetof(union i2c_smbus_data, word),
^
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:698:39: error: dereferencing pointer to incomplete type
sizeof(((union i2c_smbus_data *)0)->word),
^
In file included from /usr/lib/python2.7/site-packages/smbus/pycache__/_cffix484c8eddxe317607c.c:3:0:
/usr/lib/python2.7/site-packages/smbus/pycache/_cffix484c8eddxe317607c.c:699:20: error: invalid use of undefined type 'union i2c_smbus_data'
offsetof(union i2c_smbus_data, block),
^
/usr/lib/python2.7/site-packages/smbus/pycache__/_cffix484c8eddxe317607c.c:700:39: error: dereferencing pointer to incomplete type
sizeof(((union i2c_smbus_data *)0)->block),
^
Traceback (most recent call last):
File "", line 1, in
File "/usr/lib/python2.7/site-packages/smbus/init.py", line 1, in
from .smbus import ffi
File "/usr/lib/python2.7/site-packages/smbus/smbus.py", line 96, in
""", ext_package='smbus', include_dirs=[include_dir])
File "/usr/lib/python2.7/site-packages/cffi/api.py", line 340, in verify
lib = self.verifier.load_library()
File "/usr/lib/python2.7/site-packages/cffi/verifier.py", line 74, in load_library
self._compile_module()
File "/usr/lib/python2.7/site-packages/cffi/verifier.py", line 139, in _compile_module
outputfilename = ffiplatform.compile(tmpdir, self.get_extension())
File "/usr/lib/python2.7/site-packages/cffi/ffiplatform.py", line 25, in compile
outputfilename = _build(tmpdir, ext)
File "/usr/lib/python2.7/site-packages/cffi/ffiplatform.py", line 51, in _build
raise VerificationError('%s: %s' % (e.class__.name, e))
cffi.ffiplatform.VerificationError: CompileError: command 'gcc' failed with exit status 1
pip install went ok, but when i try to call the module i get:
[root@alarm ~]# python2 Python 2.7.8 (default, Sep 24 2014, 05:50:37) [GCC 4.8.2 20131219 (prerelease)] on linux2 Type "help", "copyright", "credits" or "license" for more information.