Python crashing on MacOS 10.15 Beta (19A582a) with “/usr/lib/libcrypto.dylib”

Question

I ran my Django project with new macOS Catalina and was running fine.
I installed oh_my_zsh then I tried to run the same project it is crashing with the following errors

Answer 1

r.xuan from this Apple Dev thread identified the steps of a workaround for the error Invalid dylib load. Clients should not load the unversioned libcrypto dylib as it does not have a stable ABI. by replacing the libssl.dylib and libcrypto.dylib links in /usr/local/lib with links to libs from Homebrew's install of openssl.

The steps are:

Get fresh libs

1) brew update && brew upgrade && brew install openssl

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/

Backup the old ones

4) cd /usr/local/lib

5) mv libssl.dylib libssl_bak.dylib

6) mv libcrypto.dylib libcrypto_bak.dylib

Create new links

7) sudo ln -s libssl.1.0.0.dylib libssl.dylib

8) sudo ln -s libcrypto.1.0.0.dylib libcrypto.dylib

Answer 2

It must be usage of some dependencies like cryptography

Solution:

cd your-site-packages-path/
vim ./asn1crypto/_int.py

find this line; delete it, and everything is ok

# from ._perf._big_num_ctypes import libcrypto

Here is my problem

Process:               Python [85179]
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:        ??? [85161]
Responsible:           iTerm2 [11711]
User ID:               501

Date/Time:             2019-10-07 23:00:25.143 +0800
OS Version:            Mac OS X 10.15 (19A582a)
Report Version:        12
Bridge OS Version:     3.0 (14Y906)
Anonymous UUID:        32C73ADD-1291-FA0E-DC02-48D539674325


Time Awake Since Boot: 42000 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.

Answer 3

To follow the answers mentioned above, wanted to link libssl.dylib file but found is no such location as below:

/usr/local/Cellar/openssl/1.0.2t/lib/

However as the accepted answer by @bixel found the file in below location

/usr/local/opt/openssl/lib

and it worked for me.

Answer 4

Looks like it was a Homebrew issue. I did brew reinstall python3 and it worked.

Answer 5

Try:

python3 -m pip install oscrypto

Worked for me!

Answer 6

I just came across the same problem and felt a bit uncomfortable to manually link things around.

I was able to solve the problem by simply

1. Installing openssl via homebrew:

   brew install openssl
   

2. Pointing towards the dynamic libraries from openssl via DYLD_LIBRARY_PATH:

   export DYLD_LIBRARY_PATH=/usr/local/opt/openssl/lib:$DYLD_LIBRARY_PATH
   

I've just added that line to my .zshrc.

Edit: According to this question, the usage of DYLD_FALLBACK_LIBRARY_PATH might be preferable over DYLD_LIBRARY_PATH.

Edit 2: As mentioned in a comment below, this should probably be the accepted answer. Simply reinstall the cryptography package.