install kconfiglib using apt repo

CMakeLists.txt

@@ -87,7 +87,7 @@ find_program(KCONFIGLIB olddefconfig)
 if(NOT KCONFIGLIB)
   message(
     FATAL_ERROR "Kconfig environment depends on kconfiglib, Please install:
-  $ pip install kconfiglib")
+  $ sudo apt install python3-kconfiglib")
 endif()
 
 # BOARD CONFIG can be set to directory path, or <board-name>[/:]<config-name>

Documentation/quickstart/install.rst

@@ -124,7 +124,7 @@ some Kconfig syntax errors.  Install kconfiglib via following command:
 
 .. code-block:: shell
 
-  pip install kconfiglib
+  sudo apt install python3-kconfiglib
 
 If you are a working on Windows, which also need the support of windows-curses:
 

tools/merge_config.py

@@ -28,7 +28,7 @@ try:
     from kconfiglib import Kconfig
 except ModuleNotFoundError:
     print("Please execute the following command to install dependencies:")
-    print("pip install kconfiglib")
+    print("sudo apt install python3-kconfiglib")
     exit()
 
 script_path = os.path.split(os.path.realpath(__file__))[0]