Import psycopg2 Library not loaded: libssl.1.0.0.dylib

Question

When I try to run the command:

import psycopg2

I get the error:

ImportError: dlopen(/Users/gwulfs/anaconda/lib/python2.7/si         


        

Answer 1

Do the following to resolve Library not loaded:libssl.1.0.0.dylib error if you have openssl in /usr/local/Cellar directory

1. sudo cp /usr/local/Cellar/openssl/<<version>>/lib/libssl.1.0.0.dylib /usr/lib
   

2. After doing step 1, if you still get Library not loaded:libcrypto.1.0.0.dylib error. Do the following
       sudo cp /usr/local/Cellar/openssl/<<version>>/lib/libcrypto.1.0.0.dylib /usr/lib

Answer 2

I had to vary Scott Brennstuhl's answer a little: 1. Remove broken symlinks:

$ sudo rm /usr/lib/libssl.1.0.0.dylib
$ sudo rm /usr/lib/libcrypto.1.0.0.dylib
$ sudo rm /usr/lib/libpq.5.dylib

2. Relink with postgres' included drivers:

$ sudo ln -s   /Applications/Postgres.app/Contents/Versions/9.4/lib/libssl.1.0.0.dylib /usr/lib    
$ sudo ln -s /Applications/Postgres.app/Contents/Versions/9.4/lib/libcrypto.1.0.0.dylib /usr/lib
$ sudo ln -s /Applications/Postgres.app/Contents/Versions/9.4/lib/libpq.5.dylib  /usr/lib

Answer 3

I tried pip install psycopg2 which was giving similar issues. Then I tried conda install psycopg2, which worked! Also make sure the pip you are using belongs to anaconda (which pip)

Answer 4

EDIT: potentially dangerous, read comments first!

See a much safer answer below: https://stackoverflow.com/a/30726895/308315

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I ran into this exact issue about an hour after you posted it and just figured it out. I am using Mac OS X Yosemite, Python 2.7, and the Postgresql app.

There seems to be a non-working symlink set by default (or I introduced it while troubleshooting), to fix it first remove the incorrect links:

$ sudo rm /usr/lib/libssl.1.0.0.dylib
$ sudo rm /usr/lib/libcrypto.1.0.0.dylib

Then re-link them with (replace YOURUSERNAME with your Mac user name. I found it helpful to use tab to complete each step, to confirm the directory):

$ sudo ln -s /Users/YOURUSERNAME/anaconda/lib/libssl.1.0.0.dylib /usr/lib
$ sudo ln -s /Users/YOURUSERNAME/anaconda/lib/libcrypto.1.0.0.dylib /usr/lib

I believe the other solutions didn't work for you because your version is in anaconda.

Answer 5

I was having this issue on Mac, trying ln -s was giving me ln: /usr/lib/libssl.1.0.0.dylib: Operation not permitted I didn't want to mess with my system. Instead What worked for me is to simply install psycopg2-binary : pip install psycopg2-binary

This installed psycopg2-binary-2.8.3 version

Answer 6

So first for me openssl re-install never worked. It was quite irritating that all of the above answers failed for me. To be sure that it's a openssl issue, first, install psycopg2-binary using pip

  pip install psycopg2-binary

After installing psycopg2-binary, if you're getting error like ld: library not found for -lssl then do the following

  export LDFLAGS="-L/usr/local/opt/openssl/lib"
  export CPPFLAGS="-I/usr/local/opt/openssl/include"

if these didn't work then you can try to upgrade psycopg2 and re-check that issue still there or not.

  pip install psycopg2 --upgrade

if all the above didn't worked then only try reinstalling openssl as mentioned in all above answers.