What should look like to be my requirements.txt file?
As base64, random and time are default libraries, your requirements.txt should look like:
python-amazon-paapi
requests
You can have a requirements.txt with or without version specifiers. For example:
[package name] == 0.6.1 # Version Matching. Must be version 0.6.1
[package name] >= 4.1.1 # Minimum version 4.1.1
[package name] != 3.5 # Version Exclusion. Anything except version 3.5
[package name] # no specified version
[package name] # no specified version