enumerate on list: py_enumerate is not defined error

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
javascript, python
Domain
compilers

Research direction

Reproduce the issue with the shown enumerate example and inspect the generated tests.enumerate.py around the py_enumerate reference. Trace how the compiler handles the enumerate primitive and compare the generated output with the runtime definitions; done means the example compiles and runs in the reported browsers without the ReferenceError.

Written by the indexing model from the issue text.

Description

IS: bug?

I reinstalled Transcrypt today, and I encountered a weird error.

source:

def test_enumerate():
    print('in test_enumerate()')
    l= [1,2,3,4,5]
    for i, v in enumerate(l):
        print(f'{i}: {v}')

output:

in test_enumerate()
tests.enumerate.py:4 Uncaught ReferenceError: py_enumerate is not defined
    at test_enumerate (tests.enumerate.py:4:1)
    at main (tests.enumerate.py:24:1)

Python version: 3.9.20
Transcrypt version: 3.9.4
Web Browser:
Chromium Version 137.0.7151.68 (Official Build) (64-bit),
Firefox 139.04

it is so weird because enumerate() is a primitive function, and almost all Python code would not be able to be executed without it. But, I installed from the standard library:

python3.9 -m pip install transcrypt

I uninstalled Transcrypt, and reinstalled it, but the result was the same.

Was there a new update of Transcrypt recently? If not, I am afraid that something was messed up in my working environment. If you have any idea about how to fix, please leave a comment.

Thanks in advance.

Dominant language
Python
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