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trezor-firmware/tests/test_python_support.py

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#!/usr/bin/env python3
"""
Verifying that all the tools can be run even by older python versions.
Uses `pyright --pythonversion 3.X <path>` output to check for substrings that
indicate the type-hints in the code are not compatible with this version.
"""
import os
import subprocess
import sys
from pathlib import Path
HERE = Path(__file__).resolve().parent
ROOT_DIR = HERE.parent
EXIT_CODE = 0
os.chdir(ROOT_DIR)
versions_to_check = [
"3.7",
"3.8",
"3.9",
]
dirs_to_check = [
"tools",
"common",
"core/tools",
]
signs_of_issues = [
"is unknown import symbol", # we need to import some stuff from typing_extensions instead of typing
"will generate runtime exception", # happens when using `dict` or `list` as a type alias
]
def check_directory(path: str, python_version: str) -> None:
global EXIT_CODE
cmd = (
"pyright",
"--pythonversion",
python_version,
path,
)
result = subprocess.run(cmd, stdout=subprocess.PIPE, text=True)
for line in result.stdout.splitlines():
if any(sign in line for sign in signs_of_issues):
print(line)
EXIT_CODE = 1
for version in versions_to_check:
print(f"Checking python version {version}")
for dir_to_check in dirs_to_check:
check_directory(dir_to_check, version)
sys.exit(EXIT_CODE)