import fails with cryptic error message

[flypunk]

Installation log and import trace with error message follow:

On Ubuntu 13:04:

sudo apt-get install libffi-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
libffi-dev
0 upgraded, 1 newly installed, 0 to remove and 28 not upgraded.
Need to get 0 B/116 kB of archives.
After this operation, 304 kB of additional disk space will be used.
Selecting previously unselected package libffi-dev:amd64.
(Reading database ... 267565 files and directories currently installed.)
Unpacking libffi-dev:amd64 (from .../libffi-dev_3.0.13-2ubuntu1_amd64.deb) ...
Processing triggers for man-db ...
Processing triggers for install-info ...
Processing triggers for doc-base ...
Processing 1 added doc-base file...
Setting up libffi-dev:amd64 (3.0.13-2ubuntu1) ...
pavel@pavel-desktop:~$ sudo pip install bcrypt
Downloading/unpacking bcrypt
Downloading bcrypt-1.0.2.tar.gz (40kB): 40kB downloaded
Running setup.py egg_info for package bcrypt

Installed /tmp/pip-build-root/bcrypt/cffi-0.7.2-py2.7-linux-x86_64.egg
Searching for pycparser
Reading http://pypi.python.org/simple/pycparser/
Best match: pycparser 2.10
Downloading https://pypi.python.org/packages/source/p/pycparser/pycparser-2.10.tar.gz#md5=d87aed98c8a9f386aa56d365fe4d515f
Processing pycparser-2.10.tar.gz
Writing /tmp/easy_install-32cbWr/pycparser-2.10/setup.cfg
Running pycparser-2.10/setup.py -q bdist_egg --dist-dir /tmp/easy_install-32cbWr/pycparser-2.10/egg-dist-tmp-py5BBN
zip_safe flag not set; analyzing archive contents...

Installed /tmp/pip-build-root/bcrypt/pycparser-2.10-py2.7.egg

Downloading/unpacking cffi (from bcrypt)
Downloading cffi-0.7.2.tar.gz (175kB): 175kB downloaded
Running setup.py egg_info for package cffi

Downloading/unpacking pycparser (from cffi->bcrypt)
Downloading pycparser-2.10.tar.gz (206kB): 206kB downloaded
Running setup.py egg_info for package pycparser

Installing collected packages: bcrypt, cffi, pycparser
Running setup.py install for bcrypt
building '_cffi_677459_d17cc0' extension
x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -Ibcrypt/crypt_blowfish-1.2 -I/usr/include/python2.7 -c bcrypt/pycache/_cffi_677459_d17cc0.c -o build/temp.linux-x86_64-2.7/bcrypt/pycache/_cffi_677459_d17cc0.o
x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -Ibcrypt/crypt_blowfish-1.2 -I/usr/include/python2.7 -c bcrypt/crypt_blowfish-1.2/crypt_blowfish.c -o build/temp.linux-x86_64-2.7/bcrypt/crypt_blowfish-1.2/crypt_blowfish.o
x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -Ibcrypt/crypt_blowfish-1.2 -I/usr/include/python2.7 -c bcrypt/crypt_blowfish-1.2/crypt_gensalt.c -o build/temp.linux-x86_64-2.7/bcrypt/crypt_blowfish-1.2/crypt_gensalt.o
x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -Ibcrypt/crypt_blowfish-1.2 -I/usr/include/python2.7 -c bcrypt/crypt_blowfish-1.2/wrapper.c -o build/temp.linux-x86_64-2.7/bcrypt/crypt_blowfish-1.2/wrapper.o
x86_64-linux-gnu-gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -Wl,-z,relro -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -D_FORTIFY_SOURCE=2 -g -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security build/temp.linux-x86_64-2.7/bcrypt/pycache/_cffi_677459_d17cc0.o build/temp.linux-x86_64-2.7/bcrypt/crypt_blowfish-1.2/crypt_blowfish.o build/temp.linux-x86_64-2.7/bcrypt/crypt_blowfish-1.2/crypt_gensalt.o build/temp.linux-x86_64-2.7/bcrypt/crypt_blowfish-1.2/wrapper.o -o build/lib.linux-x86_64-2.7/_cffi_677459_d17cc0.so

Running setup.py install for cffi
building '_cffi_backend' extension
x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/python2.7 -c c/_cffi_backend.c -o build/temp.linux-x86_64-2.7/c/_cffi_backend.o
x86_64-linux-gnu-gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -Wl,-z,relro -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -D_FORTIFY_SOURCE=2 -g -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security build/temp.linux-x86_64-2.7/c/_cffi_backend.o -lffi -o build/lib.linux-x86_64-2.7/_cffi_backend.so

Running setup.py install for pycparser

Successfully installed bcrypt cffi pycparser
Cleaning up...

pavel@pavel-desktop:~$ python
Python 2.7.4 (default, Apr 19 2013, 18:28:01)
[GCC 4.7.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.

import bcrypt
Traceback (most recent call last):
File "", line 1, in
File "/usr/local/lib/python2.7/dist-packages/bcrypt/init.py", line 71, in
).hexdigest()[:6],
File "/usr/local/lib/python2.7/dist-packages/cffi/api.py", line 312, in verify
lib = self.verifier.load_library()
File "/usr/local/lib/python2.7/dist-packages/cffi/verifier.py", line 68, in load_library
self.compile_module()
File "/usr/local/lib/python2.7/dist-packages/cffi/verifier.py", line 55, in compile_module
self._write_source()
File "/usr/local/lib/python2.7/dist-packages/cffi/verifier.py", line 117, in _write_source
file = open(self.sourcefilename, 'w')
IOError: [Errno 2] No such file or directory: '/usr/local/lib/python2.7/dist-packages/bcrypt/pycache/_cffi_677459_d17cc0.c'

pavel@pavel-desktop:~$ ls -al /usr/local/lib/python2.7/dist-packages/bcrypt
total 28
drwxr-sr-x 3 root staff 4096 Aug 4 18:40 .
drwxrwsr-x 55 root staff 4096 Aug 4 18:40 ..
-rw-r--r-- 1 root staff 1242 Aug 4 18:40 about.py
-rw-r--r-- 1 root staff 880 Aug 4 18:40 about.pyc
drwxr-sr-x 2 root staff 4096 Aug 4 18:40 crypt_blowfish-1.2
-rw-r--r-- 1 root staff 3098 Aug 4 18:40 init.py
-rw-r--r-- 1 root staff 2515 Aug 4 18:40 init.pyc

[jacobcrigby]

I get the same import error on 13.10.

[mattupstate]

Getting the same error here as well when installing as root and running python app as non-root user.

I'm going to guess that this package simply needs to import the module post-install somehow to get the source to be written to disk during the installation process.

[alex]

This should be fixed on master now. We'll do a new release shortly.

[eklitzke]

Is there a tagged release that has the fix? I just ran into this with 1.1.0 which is three months old now.

[reaperhulk]

1.1.0 was released after @alex's comment so the proposed fix is already released. Sounds like there may be an additional issue though. Is the error message the same?