Rename PIO Core Repository

platformio/__main__.py

@@ -93,7 +93,7 @@ def main():
         except AttributeError:
             raise exception.PlatformioException(
                 "Invalid installation of Python `requests` package`. See "
-                "< https://github.com/platformio/platformio/issues/252 >")
+                "< https://github.com/platformio/platformio-core/issues/252 >")
 
         # handle PLATFORMIO_FORCE_COLOR
         if str(getenv("PLATFORMIO_FORCE_COLOR", "")).lower() == "true":
@@ -124,7 +124,7 @@ An unexpected error occurred. Further steps:
   http://docs.platformio.org/en/stable/faq.html
 
 * Report this problem to the developers
-  https://github.com/platformio/platformio/issues
+  https://github.com/platformio/platformio-core/issues
 
 ============================================================
 """

platformio/commands/upgrade.py

@@ -35,7 +35,7 @@ def cli():
         to_develop = not all([c.isdigit() for c in latest if c != "."])
         cmds = ([
             "pip", "install", "--upgrade",
-            "https://github.com/platformio/platformio/archive/develop.zip"
+            "https://github.com/platformio/platformio-core/archive/develop.zip"
             if to_develop else "platformio"
         ], ["platformio", "--version"])