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Python import error libpq.so.5:
Reported by Psycopg website | February 21st, 2011 @ 11:24 AM
Submitted by: Giuseppe Tofoni
Good Morning
I have the following problem with psycopg2-2.3.2:
python 2.6.4 (r264:75706, Dec 5 2009, 21:18:28)
[GCC 4.3.3] on linux2 Type "help", "copyright", "credits" or
"license" for more information.
import psycopg2 Traceback (most recent call last):
File "", line 1, in File "/usr/lib/python2.6/site-packages/psycopg2/init.py", line 69, infrom _psycopg import BINARY, NUMBER, STRING, DATETIME, ROWIDImportError: libpq.so.5: cannot open shared object file: No such file or directory
My dir postgresql (vers. 9.0.3)
/usr/local/pgsql
My setup.cfg
pg_config=/usr/local/pgsql/bin/pg_config
there were no errors in installation.
I linked /usr/local/pgsql/libpq.so.5 in /usr/lib and everything is fine.
Is that correct?
Thanks for you help and advice.
Comments and changes to this ticket
-
Daniele Varrazzo February 21st, 2011 @ 11:41 AM
The buildbot tests the lib the same way (postgres compiled in /usr/local/somewhere) so I expect it to work.
Please try with a "make clean", "make" in the psycopg dir. Take a look if the compiler log shows the expected path (e.g. -I/usr/local/pgsql/include/ instead of /usr/include). Also take a look if ldd psycopg2/_psycopg.so links to the correct lib.
What is the output of "pg_config --libdir --includedir" using your pg_config?
-
Daniele Varrazzo February 21st, 2011 @ 12:03 PM
- State changed from “new” to “invalid”
You should probably add your non-standard library to the
LD_LIBRARY_PATHto allow the linker to find it:$ ldd /home/piro/src/psycopg2/build/lib.2.6/psycopg2/_psycopg.so | grep libpq libpq.so.5 => not found $ LD_LIBRARY_PATH=/usr/local/pgsql/lib ldd /home/piro/src/psycopg2/build/lib.2.6/psycopg2/_psycopg.so | grep libpq libpq.so.5 => /usr/local/pgsql/lib/libpq.so.5 (0x00007f1fac1b1000)
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<b>WARNING:</b> the informations in this tracker are archived. Please submit new tickets or comments to <a href="https://github.com/psycopg/psycopg2/issues">the new tracker</a>.
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Psycopg is the most used PostgreSQL adapter for the Python programming language. At the core it fully implements the Python DB API 2.0 specifications. Several extensions allow access to many of the features offered by PostgreSQL.
Daniele Varrazzo
Psycopg website