Fix "UnicodeDecodeError: 'utf-8' codec can't decode byte" when non-Latin chars are used in project path // Resolve #3481

platformio/proc.py

@@ -20,7 +20,6 @@ from threading import Thread
 
 from platformio import exception
 from platformio.compat import (
-    PY2,
     WINDOWS,
     get_filesystem_encoding,
     get_locale_encoding,
@@ -31,10 +30,7 @@ from platformio.compat import (
 class AsyncPipeBase(object):
     def __init__(self):
         self._fd_read, self._fd_write = os.pipe()
-        if PY2:
-            self._pipe_reader = os.fdopen(self._fd_read)
-        else:
-            self._pipe_reader = os.fdopen(self._fd_read, encoding="utf-8")
+        self._pipe_reader = os.fdopen(self._fd_read)
         self._buffer = ""
         self._thread = Thread(target=self.run)
         self._thread.start()