Lambda Error: No Module Found. Cryptography.hamtaz.bindings._constant_time

I created a lambda function which upload data to snowflake. I installed a all requirements in folder and zipped along with my main python file. While running in AWS it shows an err

Solution 1:

I recently encountered the same issue. It turned out my Lambda function runtime was Python 3.8 but the 'cffi' library had been compiled for Python 3.6. I created a new Lambda function with the Python 3.6 runtime and uploaded my deployment package to it and it began working right away.

Solution 2:

I faced same issue recently and found it is a problem with windows environment, try to create linux environment, install Python, packages, zip your code with all libraries and then throw back to AWS lambda, hopefully it will work.

Solution 3:

i needed to set up a virtualenv for my lambda package to work. i also found pip install snowflake-connector-python did not install some cryptography libraries, although if i navigated to the directory i wanted them to be put in, adding --target . did cause those libraries to get installed.

Solution 4:

For python 3.6, when I encountered the error "Unable to import module 'main': No module named '_cffi_backend'" in an AWS Lambda Function, I was able to run mv _cffi_backend.cpython-36m-x86_64-linux-gnu.so _cffi_backend.so in my linux docker image with virtualenv and the issue was resolved. Like mentioned above, some dependencies might be better placed with --target, to get them where you need them