無法讓 AWS SAM CLI 與 Python 3.5.x 一起使用

Question

我確信這個問題是由於我自己對 Python 和 pip 的無知，但是，我已經在網上搜索並嘗試了很多方法來讓它工作，到目前為止，無濟於事。

我有一個基於 Bitbucket 管道默認圖像（版本 2）的 docker 圖像： atlassian/default-image:2 ，它使用 Python 2.7.x。 And SAM doesn't work with that, I looked at AWS' documentation and this said that the SAM CLI no longer supports Python 2.7.x, so I removed all Python installations from the docker container (debugging the Bitbucket pipeline locally) and attempted to確保只安裝了 Python3 和 pip3（我什至設置了從/usr/bin/python到/usr/bin/python3和從/usr/bin/pip到/usr/bin/pip3 - 雖然，這看起來像不得不做這么愚蠢的事情）。

我還嘗試使用 Python 3.6 執行上述操作，因為錯誤消息（如下所示）似乎顯示了 Python 'f-String' 語法，根據 Python 的文檔，該語法是在 3.6 中引入的。

我所做的一切似乎都不起作用，而且我越看這個，我就越被扎在 Python 版本和 linux 包的看似永無止境的 web 中！

錯誤（和 python 版本）可以在這里看到：

root@eb3dc6ff9997:/localDebugRepo/infrastructure# pip3 install -U aws-sam-cli==1.22.0
Requirement already up-to-date: aws-sam-cli==1.22.0 in /usr/local/lib/python3.5/dist-packages
Requirement already up-to-date: jmespath~=0.10.0 in /usr/local/lib/python3.5/dist-packages (from aws-sam-cli==1.22.0)
Requirement already up-to-date: boto3~=1.14 in /usr/local/lib/python3.5/dist-packages (from aws-sam-cli==1.22.0)
Requirement already up-to-date: cookiecutter~=1.7.2 in /usr/local/lib/python3.5/dist-packages (from aws-sam-cli==1.22.0)
Requirement already up-to-date: aws-sam-translator==1.35.0 in /usr/local/lib/python3.5/dist-packages (from aws-sam-cli==1.22.0)
Requirement already up-to-date: aws-lambda-builders==1.3.0 in /usr/local/lib/python3.5/dist-packages (from aws-sam-cli==1.22.0)
Requirement already up-to-date: tomlkit==0.7.0 in /usr/local/lib/python3.5/dist-packages (from aws-sam-cli==1.22.0)
Requirement already up-to-date: dateparser~=0.7 in /usr/local/lib/python3.5/dist-packages (from aws-sam-cli==1.22.0)
Requirement already up-to-date: requests==2.23.0 in /usr/local/lib/python3.5/dist-packages (from aws-sam-cli==1.22.0)
Requirement already up-to-date: watchdog==0.10.3 in /usr/local/lib/python3.5/dist-packages (from aws-sam-cli==1.22.0)
Requirement already up-to-date: PyYAML~=5.3 in /usr/local/lib/python3.5/dist-packages (from aws-sam-cli==1.22.0)
Requirement already up-to-date: serverlessrepo==0.1.10 in /usr/local/lib/python3.5/dist-packages (from aws-sam-cli==1.22.0)
Requirement already up-to-date: Flask~=1.1.2 in /usr/local/lib/python3.5/dist-packages (from aws-sam-cli==1.22.0)
Requirement already up-to-date: chevron~=0.12 in /usr/local/lib/python3.5/dist-packages (from aws-sam-cli==1.22.0)
Requirement already up-to-date: click~=7.1 in /usr/local/lib/python3.5/dist-packages (from aws-sam-cli==1.22.0)
Requirement already up-to-date: docker~=4.2.0 in /usr/local/lib/python3.5/dist-packages (from aws-sam-cli==1.22.0)
Requirement already up-to-date: s3transfer<0.4.0,>=0.3.0 in /usr/local/lib/python3.5/dist-packages (from boto3~=1.14->aws-sam-cli==1.22.0)
Requirement already up-to-date: botocore<1.21.0,>=1.20.50 in /usr/local/lib/python3.5/dist-packages (from boto3~=1.14->aws-sam-cli==1.22.0)
Requirement already up-to-date: binaryornot>=0.4.4 in /usr/local/lib/python3.5/dist-packages (from cookiecutter~=1.7.2->aws-sam-cli==1.22.0)
Requirement already up-to-date: six>=1.10 in /usr/local/lib/python3.5/dist-packages (from cookiecutter~=1.7.2->aws-sam-cli==1.22.0)
Requirement already up-to-date: poyo>=0.5.0 in /usr/local/lib/python3.5/dist-packages (from cookiecutter~=1.7.2->aws-sam-cli==1.22.0)
Requirement already up-to-date: jinja2-time>=0.2.0 in /usr/local/lib/python3.5/dist-packages (from cookiecutter~=1.7.2->aws-sam-cli==1.22.0)
Requirement already up-to-date: MarkupSafe<2.0.0 in /usr/local/lib/python3.5/dist-packages (from cookiecutter~=1.7.2->aws-sam-cli==1.22.0)
Requirement already up-to-date: Jinja2<3.0.0 in /usr/local/lib/python3.5/dist-packages (from cookiecutter~=1.7.2->aws-sam-cli==1.22.0)
Requirement already up-to-date: python-slugify>=4.0.0 in /usr/local/lib/python3.5/dist-packages (from cookiecutter~=1.7.2->aws-sam-cli==1.22.0)
Requirement already up-to-date: jsonschema~=3.2 in /usr/local/lib/python3.5/dist-packages (from aws-sam-translator==1.35.0->aws-sam-cli==1.22.0)
Requirement already up-to-date: setuptools in /usr/local/lib/python3.5/dist-packages (from aws-lambda-builders==1.3.0->aws-sam-cli==1.22.0)
Requirement already up-to-date: wheel in /usr/local/lib/python3.5/dist-packages (from aws-lambda-builders==1.3.0->aws-sam-cli==1.22.0)
Requirement already up-to-date: regex!=2019.02.19 in /usr/local/lib/python3.5/dist-packages (from dateparser~=0.7->aws-sam-cli==1.22.0)
Requirement already up-to-date: pytz in /usr/local/lib/python3.5/dist-packages (from dateparser~=0.7->aws-sam-cli==1.22.0)
Requirement already up-to-date: tzlocal in /usr/local/lib/python3.5/dist-packages (from dateparser~=0.7->aws-sam-cli==1.22.0)
Requirement already up-to-date: python-dateutil in /usr/local/lib/python3.5/dist-packages (from dateparser~=0.7->aws-sam-cli==1.22.0)
Requirement already up-to-date: chardet<4,>=3.0.2 in /usr/local/lib/python3.5/dist-packages (from requests==2.23.0->aws-sam-cli==1.22.0)
Requirement already up-to-date: idna<3,>=2.5 in /usr/local/lib/python3.5/dist-packages (from requests==2.23.0->aws-sam-cli==1.22.0)
Requirement already up-to-date: urllib3!=1.25.0,!=1.25.1,<1.26,>=1.21.1 in /usr/local/lib/python3.5/dist-packages (from requests==2.23.0->aws-sam-cli==1.22.0)
Requirement already up-to-date: certifi>=2017.4.17 in /usr/local/lib/python3.5/dist-packages (from requests==2.23.0->aws-sam-cli==1.22.0)
Requirement already up-to-date: pathtools>=0.1.1 in /usr/local/lib/python3.5/dist-packages (from watchdog==0.10.3->aws-sam-cli==1.22.0)
Requirement already up-to-date: itsdangerous>=0.24 in /usr/local/lib/python3.5/dist-packages (from Flask~=1.1.2->aws-sam-cli==1.22.0)
Requirement already up-to-date: Werkzeug>=0.15 in /usr/local/lib/python3.5/dist-packages (from Flask~=1.1.2->aws-sam-cli==1.22.0)
Requirement already up-to-date: websocket-client>=0.32.0 in /usr/local/lib/python3.5/dist-packages (from docker~=4.2.0->aws-sam-cli==1.22.0)
Requirement already up-to-date: arrow in /usr/local/lib/python3.5/dist-packages (from jinja2-time>=0.2.0->cookiecutter~=1.7.2->aws-sam-cli==1.22.0)
Requirement already up-to-date: text-unidecode>=1.3 in /usr/local/lib/python3.5/dist-packages (from python-slugify>=4.0.0->cookiecutter~=1.7.2->aws-sam-cli==1.22.0)
Requirement already up-to-date: importlib-metadata; python_version < "3.8" in /usr/local/lib/python3.5/dist-packages (from jsonschema~=3.2->aws-sam-translator==1.35.0->aws-sam-cli==1.22.0)
Requirement already up-to-date: pyrsistent>=0.14.0 in /usr/local/lib/python3.5/dist-packages (from jsonschema~=3.2->aws-sam-translator==1.35.0->aws-sam-cli==1.22.0)
Requirement already up-to-date: attrs>=17.4.0 in /usr/local/lib/python3.5/dist-packages (from jsonschema~=3.2->aws-sam-translator==1.35.0->aws-sam-cli==1.22.0)
Requirement already up-to-date: typing-extensions; python_version < "3.8" in /usr/local/lib/python3.5/dist-packages (from arrow->jinja2-time>=0.2.0->cookiecutter~=1.7.2->aws-sam-cli==1.22.0)
Requirement already up-to-date: zipp>=0.5 in /usr/local/lib/python3.5/dist-packages (from importlib-metadata; python_version < "3.8"->jsonschema~=3.2->aws-sam-translator==1.35.0->aws-sam-cli==1.22.0)
You are using pip version 8.1.1, however version 21.0.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
root@eb3dc6ff9997:/localDebugRepo/infrastructure# python --version
bash: /usr/bin/python: No such file or directory
root@eb3dc6ff9997:/localDebugRepo/infrastructure# pip --version
bash: /usr/bin/pip: No such file or directory
root@eb3dc6ff9997:/localDebugRepo/infrastructure# python3 --version
Python 3.5.2
root@eb3dc6ff9997:/localDebugRepo/infrastructure# pip3 --version
pip 8.1.1 from /usr/lib/python3/dist-packages (python 3.5)
root@eb3dc6ff9997:/localDebugRepo/infrastructure# sam --version
Traceback (most recent call last):
  File "/usr/local/bin/sam", line 7, in <module>
    from samcli.cli.main import cli
  File "/usr/local/lib/python3.5/dist-packages/samcli/cli/main.py", line 86
    cmdline_args_log += f"--{key} "
                                  ^
SyntaxError: invalid syntax
root@eb3dc6ff9997:/localDebugRepo/infrastructure# 

我真的很想有一些理智的方法來確切地知道我需要哪個 Python 版本，以及一種理智的方法來安裝和配置它。

請幫我：）

Answer 1

在大多數情況下，我建議僅使用已安裝 python 3 的 docker 映像，而不是修改現有映像中的 python 安裝或安裝新映像。 這個 bitbucket 頁面討論了使用不同的基本圖像。

還有一個關於具體使用 python 基礎鏡像的頁面。

除此之外，根據您希望如何使用 SAM，您可以使用內置的 Bitbucket “管道”來部署到 SAM。 這是有關管道的一些信息。 . 我認為這將繞過在您的構建中安裝 SAM 的需要。

我自己沒有使用過特定的 pipe，但我認為它的工作方式是在管道中構建部署工件文件，將其緩存以便在以后的步驟中可用，然后將該文件設置為 SAM pipe 的輸入以進行部署它。 SAM pipe 在單獨的容器中運行，因此它已經安裝在該容器中。 您只需傳入文件。

最后，我從來沒有使用過 SAM，所以對此持保留態度，但在官方 AWS Linux 安裝文檔或ZBF215181B414052D54437B37B3 頁面上，我沒有看到使用pip安裝 CLI 的參考。 我確實發現了這個問題，從中我收集了以下信息：

• pip安裝是可能的，但不推薦
• aws sam cli 不支持 Python 3.5
• 如果您使用說明中的安裝程序，聽起來它會為您處理 python 版本控制。
• 他們希望針對 Python 的單個版本，所以如果您使用 pip，也許最新或第二個最新的 Python 版本可以工作。 只是猜測...