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Probe more radiosonde Python environments

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This commit is contained in:
James Smith
2026-03-19 11:02:42 +00:00
parent 18b442eb21
commit fa46483dd9
1 changed files with 54 additions and 9 deletions
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45
routes/radiosonde.py
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@@ -11,6 +11,7 @@ import contextlib
import json
import os
import queue
import shlex
import shutil
import socket
import subprocess
@@ -83,19 +84,63 @@ def find_auto_rx() -> str | None:
return None
def _resolve_shebang_interpreter(script_path: str) -> str | None:
"""Resolve a Python interpreter from a script shebang if possible."""
try:
with open(script_path, 'r', encoding='utf-8', errors='ignore') as handle:
first_line = handle.readline().strip()
except OSError:
return None
if not first_line.startswith('#!'):
return None
parts = shlex.split(first_line[2:].strip())
if not parts:
return None
if os.path.basename(parts[0]) == 'env' and len(parts) > 1:
return shutil.which(parts[1])
return parts[0]
def _resolve_pip_python(pip_bin: str | None) -> str | None:
"""Resolve the Python interpreter used by a pip executable."""
if not pip_bin:
return None
return _resolve_shebang_interpreter(pip_bin)
def _iter_auto_rx_python_candidates(auto_rx_path: str):
"""Yield plausible Python interpreters for radiosonde_auto_rx."""
auto_rx_abs = os.path.abspath(auto_rx_path)
auto_rx_dir = os.path.dirname(auto_rx_abs)
install_root = os.path.dirname(auto_rx_dir)
install_parent = os.path.dirname(install_root)
candidates = [
_resolve_shebang_interpreter(auto_rx_abs),
sys.executable,
os.path.join(install_root, 'venv', 'bin', 'python'),
os.path.join(install_root, 'venv', 'bin', 'python3'),
os.path.join(install_root, '.venv', 'bin', 'python'),
os.path.join(install_root, '.venv', 'bin', 'python3'),
os.path.join(auto_rx_dir, 'venv', 'bin', 'python'),
os.path.join(auto_rx_dir, 'venv', 'bin', 'python3'),
os.path.join(auto_rx_dir, '.venv', 'bin', 'python'),
os.path.join(auto_rx_dir, '.venv', 'bin', 'python3'),
os.path.join(install_parent, 'venv', 'bin', 'python'),
os.path.join(install_parent, 'venv', 'bin', 'python3'),
os.path.join(install_parent, '.venv', 'bin', 'python'),
os.path.join(install_parent, '.venv', 'bin', 'python3'),
_resolve_pip_python(shutil.which('pip3')),
_resolve_pip_python(shutil.which('pip')),
shutil.which('python3'),
shutil.which('python'),
'/usr/local/bin/python3',
'/usr/local/bin/python',
'/usr/bin/python3',
]
seen: set[str] = set()