Since a few days ago, zappa deploy fails with the following error (zappa version 0.50.0):
Traceback (most recent call last):
File "/root/repo/venv/lib/python3.6/site-packages/zappa/cli.py", line 2785, in handle
sys.exit(cli.handle())
File "/root/repo/venv/lib/python3.6/site-packages/zappa/cli.py", line 510, in handle
self.dispatch_command(self.command, stage)
File "/root/repo/venv/lib/python3.6/site-packages/zappa/cli.py", line 557, in dispatch_command
self.update(self.vargs['zip'], self.vargs['no_upload'])
File "/root/repo/venv/lib/python3.6/site-packages/zappa/cli.py", line 993, in update
endpoint_configuration=self.endpoint_configuration
File "/root/repo/venv/lib/python3.6/site-packages/zappa/core.py", line 2106, in create_stack_template
self.cf_template.add_description('Automatically generated with Zappa')
AttributeError: 'Template' object has no attribute 'add_description'
Since version 3.0.0, the package troposphere removed the deprecated Template methods (see the changelog).
Breaking changes: * Python 3.6+ (Python 2.x and earlier Python 3.x support is now deprecated due to Python EOL) * Remove previously deprecated Template methods.
The above issue can be fixed by adding troposphere<3 in the requirements file.
The answer by nbeuchat might not work for everyone, an alternative solution that might help would be to change the line in venv/lib/python3.6{or 7,8, etc.}/site-packages/zappa/core.py from add_description() to set_description().
Troposphere updated add_description to set_description along with other previously deprecated template methods which is why you see the problem.