Python http example is working locally but giving "Internal Server Error" on cloud deploy

[farooqhasny]

Describe the bug A clear and concise description of what the bug is.

Frequency of the bug Please check one:

• [x ] Consistent repro
• [ ] Intermittent repro
• [ ] No repro

Set-up information spin 2.4.2 (340378e 2024-04-03) tried on windows and WSL2 Ubuntu To Reproduce Steps to reproduce the behavior:

1. use https://github.com/fermyon/spin-python-sdk/tree/main/templates/http-py template to create project .
2. build and deploy on cloud once uploaded open url in browser (chrome)

Expected behavior expect to see "Hello from Python!" but getting Internal Server Error

[mikkelhegn]

Thanks for reporting this @farooqhasny.

Could you try using this template instead? https://github.com/fermyon/spin-python-sdk/tree/v2.0/templates/http-py

spin template upgrade --repo https://github.com/fermyon/spin-python-sdk --branch v2.0 would be the command to use.

We believe there's an incompatibility with version 3.0.0 and 3.1.0 of the Python SDK and cloud, which we need to handle.

[farooqhasny]

Thanks for your response @mikkelhegn I have tried upgrading template without any success .I am attaching the project for your reference .

http-py.zip

[mikkelhegn]

The spin template upgrade command only applies to the template you use for creationg a new application, so it will not make any changes to the ones you've already created.

The main thing is the SDK and componentize-py version you're using. I'm not sure if changing the version in the requirmens.txt file to the below will work, but you can try.

spin-sdk == 2.0.0
componentize-py == 0.11.2

[farooqhasny]

hi @mikkelhegn when i try using spin-sdk == 2.0.0 componentize-py == 0.11.2 Python 3.10.12 and template from https://github.com/fermyon/spin-python-sdk --branch v2.0 build fails

ASF1KMF:~/hello-world$ spin build
Building component hello-world with `componentize-py -w spin-http componentize app -o app.wasm`
Traceback (most recent call last):
  File "/usr/local/bin/componentize-py", line 8, in <module>
    sys.exit(script())
AssertionError: Traceback (most recent call last):
  File "/0/app.py", line 1, in <module>
    from spin_sdk.http import IncomingHandler, Request, Response
  File "/1/spin_sdk/http/__init__.py", line 5, in <module>
    from spin_sdk.http import poll_loop
  File "/1/spin_sdk/http/poll_loop.py", line 17, in <module>
    from spin_sdk.wit.imports.streams import StreamError_Closed, InputStream
ImportError: cannot import name 'StreamError_Closed' from 'spin_sdk.wit.imports.streams' (/1/spin_sdk/wit/imports/streams.py). Did you mean: 'StreamErrorClosed'?

Caused by:
    ImportError: cannot import name 'StreamError_Closed' from 'spin_sdk.wit.imports.streams' (/1/spin_sdk/wit/imports/streams.py)
Error: Build command for component hello-world failed with status Exited(1)

[mikkelhegn]

Do you have a repo or gist you can share?

This is my repro: https://gist.github.com/mikkelhegn/346bbff92ae9bdb2b09fd6c2948b40c5

I'm using Python 3.12.2

[farooqhasny]

i have tried compiling your gist and got this error ESKTOP-ASF1KMF:~/pygist$ spin build Building component python withcomponentize-py -w spin-http componentize app -o app.wasm` Traceback (most recent call last): File "/home/farooq/.local/bin/componentize-py", line 8, in sys.exit(script()) AssertionError: Traceback (most recent call last): File "/0/app.py", line 1, in from spin_sdk.http import IncomingHandler, Request, Response File "/1/spin_sdk/http/init.py", line 5, in from spin_sdk.http import poll_loop File "/1/spin_sdk/http/poll_loop.py", line 17, in from spin_sdk.wit.imports.streams import StreamError_Closed, InputStream ImportError: cannot import name 'StreamError_Closed' from 'spin_sdk.wit.imports.streams' (/1/spin_sdk/wit/imports/streams.py). Did you mean: 'StreamErrorClosed'?

Caused by: ImportError: cannot import name 'StreamError_Closed' from 'spin_sdk.wit.imports.streams' (/1/spin_sdk/wit/imports/streams.py) Error: Build command for component python failed with status Exited(1) `

[mikkelhegn]

Ok - I think we have to call @dicej to help with some debugging here... Joel?

[dicej]

@farooqhasny Based on the error message you posted, it looks like you're still using spin-sdk 3.0.0 rather than spin-sdk 2.0.0 as specified in Mikkel's gist. Did you run pip install -r requirements.txt?

FWIW, I just tried the code in Mikkel's gist, and it worked for me.

[farooqhasny]

Thanks @dicej my apps which were create and deployed 4 days ago, which weren't working before , have start working now. seems like some recent update of spin cloud runtime has fix the issue . Thanks for all your support .