idf.py: Don't expect "_" env. variable to be available from PowerShell
@@ -1113,7 +1113,7 @@ if __name__ == "__main__":
WINPTY_VAR = "WINPTY"
WINPTY_EXE = "winpty"
if ("MSYSTEM" in os.environ) and (
- not os.environ["_"].endswith(WINPTY_EXE) and WINPTY_VAR not in os.environ
+ not os.environ.get("_", "").endswith(WINPTY_EXE) and WINPTY_VAR not in os.environ
):
os.environ[WINPTY_VAR] = "1" # the value is of no interest to us
# idf.py calls itself with "winpty" and WINPTY global variable set
