CODEWITHSUNDEEP
web-servicesfastapiuvicorn
Redithion
Redithion

Reputation: 1016

Can't run uvicorn --version

I'm trying FastAPI but I can't even run the Hello World example. I've installed both uvicorn and fastapi with a venv and requirements.txt, also I'm running Python 3.5 (maybe that's the issue?)

The issue should be something with uvicorn because I can't run --help or --version

uvicorn --version
Traceback (most recent call last):
  File "/home/...../.venv/bin/uvicorn", line 7, in <module>
    from uvicorn.main import main
  File "/home/...../.venv/lib/python3.5/site-packages/uvicorn/__init__.py", line 1, in <module>
    from uvicorn.config import Config
  File "/home/...../.venv/lib/python3.5/site-packages/uvicorn/config.py", line 131
    message = f"Uvicorn running on {ip_repr} (Press CTRL+C to quit)"
                                                                   ^
SyntaxError: invalid syntax

I really don't have a clue where to start looking as I cannot seem to find anything on internet.

Upvotes: 2

Views: 3807

Answers (1)

Paolo
Paolo

Reputation: 21056

Surely with Python 3.5, FastAPI won't work.

FastAPI homepage:

FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.

uvicorn (from https://github.com/encode/uvicorn):

Requirements: Python 3.6+ (For Python 3.5 support, install version 0.8.6.)

I guess you should update Python to 3.6 at least. pyenv should help.

Upvotes: 4

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