Zappa deploy fails with AttributeError: 'Template' object has no attribute 'add_description'

Question

几天前，zappa deploy 失败并出现以下错误（zappa 版本 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'

Answer 1

自版本 3.0.0 起，包 troposphere 删除了已弃用的 Template 方法（请参阅 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.

可以通过在需求文件中添加 troposphere<3 来解决上述问题。

Answer 2

nbeuchat 的答案可能并不适用于所有人，另一种可能有用的解决方案是更改 venv/lib/python3.6{或 7,8 等}/site-packages/zappa/core 中的行。 py 从 add_description() 到 set_description().

Troposphere 已将 add_description 更新为 set_description 以及其他先前弃用的模板方法，这就是您看到此问题的原因。

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