Rm unnecessary STAGPY_ISOLATED env var

Author: amorison

docs/conf.py

@@ -20,9 +20,6 @@
 
 sys.path.insert(0, os.path.abspath(".."))
 
-# do not try to create/read config files
-os.environ["STAGPY_ISOLATED"] = "True"
-
 import stagpy
 
 html_theme = "sphinx_rtd_theme"

stagpy/__init__.py

@@ -4,9 +4,6 @@
 documentation at
 https://stagpy.readthedocs.io/en/stable/
 
-If the environment variable STAGPY_ISOLATED is set to a truthy value, StagPy
-does not attempt to read any configuration file (including mplstyle).
-
 When using the CLI interface, if the environment variable STAGPY_DEBUG is set
 to a truthy value, warnings are issued normally and StagpyError are raised.
 Otherwise, warnings are ignored and only a short form of encountered
@@ -36,7 +33,6 @@ def _env(var: str) -> bool:
 
 
 DEBUG = _env("STAGPY_DEBUG")
-ISOLATED = _env("STAGPY_ISOLATED")
 
 
 def sigint_handler(*_: Any) -> NoReturn:
@@ -65,9 +61,8 @@ def sigint_handler(*_: Any) -> NoReturn:
     __version__ = "unknown"
 
 conf = config.Config.default_()
-if not ISOLATED:
-    if config.CONFIG_LOCAL.is_file():
-        conf.update_from_file_(config.CONFIG_LOCAL)
+if config.CONFIG_LOCAL.is_file():
+    conf.update_from_file_(config.CONFIG_LOCAL)
 
 if not DEBUG:
     signal.signal(signal.SIGINT, _PREV_INT)

tox.ini

@@ -17,11 +17,9 @@ deps =
 commands =
     stagpy version
     pytest --cov={envsitepackagesdir}/stagpy --cov-report term-missing {posargs}
-setenv = STAGPY_ISOLATED=True
 
 [testenv:py312]
 setenv =
-    STAGPY_ISOLATED=True
     COVERAGE_CORE=sysmon
 
 [testenv:mypy]