`sam local invoke`错误'NameError：名称'NpipeHTTPAdapter'未定义'

Question

我正在编写一个 lambda 函数，只是为了从 AWS RDS 表中获取一些数据。我能够成功运行 sam package 和 sam deploy 以将该功能部署到 AWS。

当我运行 sam build 时，它成功构建，然后我运行 sam local invoke 以在本地测试 lambda，但我得到以下错误输出

$ sam local invoke
Traceback (most recent call last):
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\docker\api\client.py", line 154, in __init__
    self._custom_adapter = NpipeHTTPAdapter(
NameError: name 'NpipeHTTPAdapter' is not defined

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\runpy.py", line 192, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "C:\Users\jthomas\AppData\Local\Programs\Python\Python38-32\Scripts\sam.exe\__main__.py", line 7, in <module>
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\click\core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\click\core.py", line 717, in main
    rv = self.invoke(ctx)
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\click\core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\click\core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\click\core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\click\core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\click\decorators.py", line 64, in new_func
    return ctx.invoke(f, obj, *args, **kwargs)
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\click\core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\samcli\lib\telemetry\metrics.py", line 93, in wrapped
    raise exception  # pylint: disable=raising-bad-type
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\samcli\lib\telemetry\metrics.py", line 62, in wrapped
    return_value = func(*args, **kwargs)
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\samcli\commands\local\invoke\cli.py", line 70, in cli
    do_cli(
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\samcli\commands\local\invoke\cli.py", line 131, in do_cli
    with InvokeContext(
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\samcli\commands\local\cli_common\invoke_context.py", line 134, in __enter__
    self._container_manager = self._get_container_manager(self._docker_network, self._skip_pull_image)
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\samcli\commands\local\cli_common\invoke_context.py", line 373, in _get_container_manager
    return ContainerManager(docker_network_id=docker_network, skip_pull_image=skip_pull_image)
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\samcli\local\docker\manager.py", line 34, in __init__
    self.docker_client = docker_client or docker.from_env()
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\docker\client.py", line 84, in from_env
    return cls(
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\docker\client.py", line 40, in __init__
    self.api = APIClient(*args, **kwargs)
  File "c:\users\jthomas\appdata\local\programs\python\python38-32\lib\site-packages\docker\api\client.py", line 158, in __init__
    raise DockerException(
docker.errors.DockerException: Install pypiwin32 package to enable npipe:// support

我的版本：

$ python --version
Python 3.8.0

$ aws --version
aws-cli/1.16.286 Python/3.6.0 Windows/10 botocore/1.13.22

$ sam --version
SAM CLI, version 0.33.1

Pip 列表显示我安装了 pypiwin32 (v223)

$ pip list
Package             Version
------------------- ---------
arrow               0.15.4
attrs               19.3.0
aws-lambda-builders 0.6.0
aws-sam-cli         0.33.1
aws-sam-translator  1.15.1
binaryornot         0.4.4
boto3               1.10.22
botocore            1.13.22
certifi             2019.9.11
chardet             3.0.4
chevron             0.13.1
Click               7.0
cookiecutter        1.6.0
dateparser          0.7.2
docker              4.1.0
docutils            0.15.2
Flask               1.0.4
future              0.18.2
idna                2.8
itsdangerous        1.1.0
Jinja2              2.10.3
jinja2-time         0.2.0
jmespath            0.9.4
jsonschema          3.2.0
MarkupSafe          1.1.1
pip                 19.3.1
poyo                0.5.0
pypiwin32           223
pyrsistent          0.15.5
python-dateutil     2.8.0
pytz                2019.3
pywin32             225
PyYAML              5.1.2
regex               2019.11.1
requests            2.22.0
s3transfer          0.2.1
serverlessrepo      0.1.9
setuptools          41.6.0
six                 1.13.0
tomlkit             0.5.8
tzlocal             2.0.0
urllib3             1.25.7
websocket-client    0.56.0
Werkzeug            0.16.0
wheel               0.33.6
whichcraft          0.6.1

Docker Desktop 也在我的机器上安装并运行。我一直在https://github.com/docker/compose/issues/4842 上尝试通过 MSI 安装 aws-sam-cli，但没有成功。我已经重新安装了 Python、AWS CLI、AWS SAM CLI 和 Docker。我不确定下一步该去哪里。

有什么办法可以让我的 AWS Lambda 函数在本地运行吗？

Answer 1

我最终需要卸载我通过 pip 安装的 sam-cli 版本，并改用 Windows MSI 安装程序。显然，使用 MSI 是 Windows 所需的安装方法。然后使用“sam.cmd”调用 sam cli。