Fix config saving when PY2 is used

2020-01-25 15:47:45 +02:00
parent ba441ca77c
commit e5aa71e4e1
1 changed files with 1 additions and 1 deletions
--- a/platformio/project/config.py
+++ b/platformio/project/config.py
@ -451,7 +451,7 @@ class ProjectConfig(ProjectConfigBase, ProjectConfigDirsMixin):
            del self._instances[path]
        with open(path or self.path, "w") as fp:
            fp.write(CONFIG_HEADER.strip())
-            buf = io.StringIO()
+            buf = io.BytesIO() if PY2 else io.StringIO()
            self._parser.write(buf)
            fp.write("\n\n%s\n" % buf.getvalue().strip())
        return True