AWS Lambda Error: Unzipped size must be smaller than 262144000 bytes

Question

I am developing one lambda function, which use the ResumeParser library made in the python 2.7. But when I deploy this function including the library on the AWS it's throwing me following error:

Unzipped size must be smaller than 262144000 bytes

Answer 1

Perhaps you did not exclude development packages which made your file to grow that big.

I my case, (for NodeJS) I had missing the following in my serverless.yml:

package:   exclude:     - node_modules/**     - venv/** 

See if there are similar for Python or your case.

Answer 2

This is a hard limit which cannot be changed:

AWS Lambda Limit Errors

Functions that exceed any of the limits listed in the previous limits tables will fail with an exceeded limits exception. These limits are fixed and cannot be changed at this time. For example, if you receive the exception CodeStorageExceededException or an error message similar to "Code storage limit exceeded" from AWS Lambda, you need to reduce the size of your code storage.

You need to reduce the size of your package. If you have large binaries place them in s3 and download on bootstrap. Likewise for dependencies, you can pip install or easy_install them from an s3 location which will be faster than pulling from pip repos.