使用无服务器框架将 Python 包部署到 AWS lambda 时出错

问题描述 投票：0回答：3

我已经按照无服务器网站上的 this 教程尝试部署我的第一个具有包依赖性的 AWS lambda 函数。

我得到的错误是

STDERR: ERROR: Invalid requirement: '��' (from line 1 of /var/task/requirements.txt)
我一直无法找到使用谷歌的解决方案。尝试多次阅读本教程后，相同的错误不断重复出现，有时是
ERROR: Invalid requirement: '\x00'
或
ERROR: Invalid requirement: '\x00\x01'
或类似的错误。在我看来，serverless-python-requirements 插件错误地格式化了它自己的需求文件，但我只是不知道。

My requirements.txtwhen I have no dependencies 为空，然后转换为无服务器生成的.serverless 要求.txt:

��

当我的requirements.txt是

numpy==1.19.2

这转换为 .serverless/requirements.txt 如下：

��n u m p y = = 1 。 1 9 。 2

我已经完成了教程的每一步，并且在运行

serverless deploy
之前没有遇到任何问题。这是我得到的堆栈跟踪：

Serverless: Invoke deploy
Serverless: Invoke package
Serverless: Invoke aws:common:validate
Serverless: Invoke aws:common:cleanupTempDir
Serverless: Generated requirements from C:\Users\...\Documents\Serverless\my\requirements.txt in C:\Users\...\Documents\Serverless\my\.serverless\requirements.txt...
Serverless: Installing requirements from C:\Users\...\AppData\Local\UnitedIncome\serverless-python-requirements\Cache\943a69dded6372ca37aaaacaf21570a18766193003231d5130a067451373395d_slspyc\requirements.txt ...
Serverless: Docker Image: lambci/lambda:build-python3.8
Serverless: Trying bindPath C:/Users/.../AppData/Local/UnitedIncome/serverless-python-requirements/Cache/943a69dded6372ca37aaaacaf21570a18766193003231d5130a067451373395d_slspyc (run,--rm,-v,C:/Users/.../AppData/Local/UnitedIncome/serverless-python-requirements/Cache/943a69dded6372ca37aaaacaf21570a18766193003231d5130a067451373395d_slspyc:/test,alpine,ls,/test/requirements.txt)
Serverless: /test/requirements.txt
Serverless: Using download cache directory C:\Users\...\AppData\Local\UnitedIncome\serverless-python-requirements\Cache\downloadCacheslspyc
Serverless: Trying bindPath C:/Users/.../AppData/Local/UnitedIncome/serverless-python-requirements/Cache/downloadCacheslspyc (run,--rm,-v,C:/Users/.../AppData/Local/UnitedIncome/serverless-python-requirements/Cache/downloadCacheslspyc:/test,alpine,ls,/test/requirements.txt)
Serverless: /test/requirements.txt
Serverless: Running docker run --rm -v C\:/Users/.../AppData/Local/UnitedIncome/serverless-python-requirements/Cache/4870b1f009d955f0e7d5138512661e3ec4364d6a9c1e3c6cadc9d51a7e3b8dd2_slspyc\:/var/task\:z -v C\:/Users/.../AppData/Local/UnitedIncome/serverless-python-requirements/Cache/downloadCacheslspyc\:/var/useDownloadCache\:z -u 0 lambci/lambda\:build-python3.8 python -m pip install -t /var/task/ -r /var/task/requirements.txt --cache-dir /var/useDownloadCache...

  Error --------------------------------------------------

  Error: STDOUT:

  STDERR: ERROR: Invalid requirement: '��' (from line 1 of /var/task/requirements.txt)

      at C:\Users\...\Documents\Serverless\my\node_modules\serverless-python-requirements\lib\pip.js:325:13
      at Array.forEach (<anonymous>)
      at installRequirements (C:\Users\...\Documents\Serverless\my\node_modules\serverless-python-requirements\lib\pip.js:312:28)
      at installRequirementsIfNeeded (C:\Users\...\Documents\Serverless\my\node_modules\serverless-python-requirements\lib\pip.js:556:3)
      at ServerlessPythonRequirements.installAllRequirements (C:\Users\...\Documents\Serverless\my\node_modules\serverless-python-requirements\lib\pip.js:635:29)
  From previous event:
      at PluginManager.invoke (C:\Users\...\AppData\Roaming\npm\node_modules\serverless\lib\classes\PluginManager.js:498:22)
      at PluginManager.spawn (C:\Users\...\AppData\Roaming\npm\node_modules\serverless\lib\classes\PluginManager.js:518:17)
      at C:\Users\...\AppData\Roaming\npm\node_modules\serverless\lib\plugins\deploy\deploy.js:122:50
  From previous event:
      at Object.before:deploy:deploy [as hook] (C:\Users\...\AppData\Roaming\npm\node_modules\serverless\lib\plugins\deploy\deploy.js:102:22)
      at C:\Users\...\AppData\Roaming\npm\node_modules\serverless\lib\classes\PluginManager.js:498:55
  From previous event:
      at PluginManager.invoke (C:\Users\...\AppData\Roaming\npm\node_modules\serverless\lib\classes\PluginManager.js:498:22)
      at C:\Users\...\AppData\Roaming\npm\node_modules\serverless\lib\classes\PluginManager.js:533:24
  From previous event:
      at PluginManager.run (C:\Users\...\AppData\Roaming\npm\node_modules\serverless\lib\classes\PluginManager.js:533:8)
      at C:\Users\...\AppData\Roaming\npm\node_modules\serverless\lib\Serverless.js:168:33
  From previous event:
      at Serverless.run (C:\Users\...\AppData\Roaming\npm\node_modules\serverless\lib\Serverless.js:155:74)
      at C:\Users\...\AppData\Roaming\npm\node_modules\serverless\scripts\serverless.js:50:26
      at processImmediate (internal/timers.js:456:21)
  From previous event:
      at Object.<anonymous> (C:\Users\...\AppData\Roaming\npm\node_modules\serverless\scripts\serverless.js:50:4)
      at Module._compile (internal/modules/cjs/loader.js:1137:30)
      at Object.Module._extensions..js (internal/modules/cjs/loader.js:1157:10)
      at Module.load (internal/modules/cjs/loader.js:985:32)
      at Function.Module._load (internal/modules/cjs/loader.js:878:14)
      at Module.require (internal/modules/cjs/loader.js:1025:19)
      at require (internal/modules/cjs/helpers.js:72:18)
      at Object.<anonymous> (C:\Users\...\AppData\Roaming\npm\node_modules\serverless\bin\serverless.js:47:1)
      at Module._compile (internal/modules/cjs/loader.js:1137:30)
      at Object.Module._extensions..js (internal/modules/cjs/loader.js:1157:10)
      at Module.load (internal/modules/cjs/loader.js:985:32)
      at Function.Module._load (internal/modules/cjs/loader.js:878:14)
      at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)
      at internal/main/run_main_module.js:17:47

  Get Support --------------------------------------------
     Docs:          docs.serverless.com
     Bugs:          github.com/serverless/serverless/issues
     Issues:        forum.serverless.com

  Your Environment Information ---------------------------
     Operating System:          win32
     Node Version:              12.18.4
     Framework Version:         2.1.1
     Plugin Version:            4.0.4
     SDK Version:               2.3.2
     Components Version:        3.1.3
python amazon-web-services serverless-framework
3个回答
1
投票

修复：

  • 将 
    requirements.txt
    转换为 UTF8 将解决此问题。 （在 linux 上测试）
  • 尝试将 
    requirements.txt
    转换为 ASCII。

这是requirements.txt文件编码的问题

详细解说

截至日期 2022 年 3 月 10 日，这是一个未解决的问题

无服务器插件将文件重写到 

.serverless
目录中，并在读取文件时采用 UTF8 编码。

无服务器尝试读取具有另一种编码的文件，然后将其转储到 

.serverless
文件夹中时出现问题。

Serverless-python-requirements 问题

0
投票

在最后添加 dockerizePip 命令就不会显示这个错误

custom:
  wsgi:
    app: handler.app
    pythonBin: python # Some systems with Python3 may require this
    packRequirements: false
  pythonRequirements:
    dockerizePip: non-linux

或者删除 requirements.txt 然后进入 serverless deploy 然后粘贴 requirements.txt 再次运行 serverless deploy

0
投票

我在 Windows 上部署无服务器应用程序时遇到了类似的问题，我能够通过将编码从 UTF-8 更改为 ANSI 来解决它

以下是这些步骤：

  • 在记事本中打开 requirements.txt 文件。
  • 点击记事本左上角的“文件”。
  • 在出现的下拉菜单中单击“另存为”。
  • 在“另存为”对话框中，单击“编码”下拉菜单。
  • 从可用编码格式列表中选择“ANSI”。
  • 单击“保存”按钮以 ANSI 格式保存文件。

以 ANSI 格式保存文件后，我能够成功部署应用程序。

我希望这个解决方案可以帮助任何可能在 Windows 上遇到类似问题的人。我想为那些可能会觉得有用的人包括这些步骤。

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