Paramiko: [Mac OS X] Abort trap: 6 - Cannot import paramiko on OS X Catalina

[olehermanse]

$ python3 -c "import paramiko"
Abort trap: 6

Process:               Python [3906]
Path:                  /usr/local/Cellar/python/3.7.4_1/Frameworks/Python.framework/Versions/3.7/Resources/Python.app/Contents/MacOS/Python
Identifier:            Python
Version:               3.7.4 (3.7.4)
Code Type:             X86-64 (Native)
Parent Process:        bash [1472]
Responsible:           Terminal [1469]
User ID:               501

Date/Time:             2019-10-31 09:05:15.732 +0100
OS Version:            Mac OS X 10.15.1 (19B88)
Report Version:        12
Bridge OS Version:     4.1 (17P1081)
Anonymous UUID:        9EB95E57-123A-CE0A-1794-66F5AB908029


Time Awake Since Boot: 1200 seconds

System Integrity Protection: enabled

Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_CRASH (SIGABRT)
Exception Codes:       0x0000000000000000, 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY

Application Specific Information:
/usr/lib/libcrypto.dylib
abort() called
Invalid dylib load. Clients should not load the unversioned libcrypto dylib as it does not have a stable ABI.

The last 4 lines seem most relevant. It seems like there is a manual workaround here:

https://stackoverflow.com/questions/58272830/python-crashing-on-macos-10-15-beta-19a582a-with-usr-lib-libcrypto-dylib

But the libcrypto load should be updated with a version number to fix this, it seems.

[olehermanse]

It seems like this was fixed in cryptography 2.8:

$ python3 -c "import paramiko"
Abort trap: 6
$ pip3 install cryptography
Requirement already satisfied: cryptography in /usr/local/lib/python3.7/site-packages (2.7)
Requirement already satisfied: cffi!=1.11.3,>=1.8 in /usr/local/lib/python3.7/site-packages (from cryptography) (1.12.3)
Requirement already satisfied: asn1crypto>=0.21.0 in /usr/local/lib/python3.7/site-packages (from cryptography) (0.24.0)
Requirement already satisfied: six>=1.4.1 in /usr/local/lib/python3.7/site-packages (from cryptography) (1.12.0)
Requirement already satisfied: pycparser in /usr/local/lib/python3.7/site-packages (from cffi!=1.11.3,>=1.8->cryptography) (2.19)
$ pip3 install --upgrade cryptography
Collecting cryptography
  Downloading https://files.pythonhosted.org/packages/6b/4a/ce93178469d4460d6b3a5e648fc1a2f426030f3d30a12d7ed4df73d044de/cryptography-2.8-cp34-abi3-macosx_10_6_intel.whl (1.6MB)
     |████████████████████████████████| 1.6MB 5.8MB/s 
Requirement already satisfied, skipping upgrade: cffi!=1.11.3,>=1.8 in /usr/local/lib/python3.7/site-packages (from cryptography) (1.12.3)
Requirement already satisfied, skipping upgrade: six>=1.4.1 in /usr/local/lib/python3.7/site-packages (from cryptography) (1.12.0)
Requirement already satisfied, skipping upgrade: pycparser in /usr/local/lib/python3.7/site-packages (from cffi!=1.11.3,>=1.8->cryptography) (2.19)
Installing collected packages: cryptography
  Found existing installation: cryptography 2.7
    Uninstalling cryptography-2.7:
      Successfully uninstalled cryptography-2.7
Successfully installed cryptography-2.8
$ python3 -c "import paramiko"
$

(Issue can be closed - maybe cryptography 2.8 should be required)

To fix the issue, run:

pip3 install --upgrade cryptography

[bhaveshselarka]

pip3 install --upgrade cryptography

Resolved my issue. Thanks for the help.

[fliphess]

For me pip3 didn't work either, as this resulted in the same error.
I used the trick mentioned in this article:

ln -s /usr/local/Cellar/[email protected]/1.1.1d/lib/libcrypto.dylib /usr/local/lib/libcrypto.dylib
ln -s /usr/local/Cellar/[email protected]/1.1.1d/lib/libssl.dylib /usr/local/lib/libssl.dylib