Abort trap: 6

• Pip version: 19.0.3
• Python version: Python 3.7.4
• Operating system: macOS Catalina

When I tried to use pip3 to view the installed modules, but returned Abort trap: 6,Here are some screenshots and logs.I want to know what caused this., thank you

python.log

[Esolberg2]

I had the same issue and was able to resolve following the steps from this thread:

https://forums.developer.apple.com/thread/119429

For me, this issue was related to the libssl.1.0.0.dylib and libcrypto.1.0.0.dylib. The python.log file provided by the OP references libcrypto dylib as well.

from python.log file: Invalid dylib load. Clients should not load the unversioned libcrypto dylib as it does not have a stable ABI.

for anyone who finds this, you can view your own python log files at ~/Library/Logs/DiagnosticReports.

someone else might be able to explain this further, but in short, the error seems to be related to Catalina not allowing un-versioned dylibs to be called. The solution is to link the un-versioned dylib files to ones with a version. Below are steps taken from the prevailing answer in the above link, and I can confirm that they worked for me. It doesn’t seem like existing virtual environments will be fixed with the below, but after the fix you can create new virtual environments and they should behave as expected.

Steps to Fix in your terminal:

1. brew update && brew upgrade && brew install openssl ##note: some people report that the dylib files needed in #3 are in the 1.0.2t folder, rather than the lib folder. adjust your path in #2 as needed.
2. cd /usr/local/Cellar/openssl/1.0.2t/lib
3. sudo cp libssl.1.0.0.dylib libcrypto.1.0.0.dylib /usr/local/lib/
4. cd /usr/local/lib
5. sudo ln -s libssl.1.0.0.dylib libssl.dylib
6. sudo ln -s libcrypto.1.0.0.dylib libcrypto.dylib

[joelfrederico]

This is related to pyopenssl using old dependencies. You can fix it by removing the cryptography package, then upgrading cryptography to version 2.8.