Merge pull request #13055 from meeseeksmachine/auto-backport-of-pr-13052-on-7.x

Backport PR #13052 on branch 7.x (Fix path handling in `pip` line magic)

Author: MrMino

IPython/core/magics/packaging.py

@@ -65,7 +65,9 @@ def pip(self, line):
         Usage:
           %pip install [pkgs]
         """
-        self.shell.system(' '.join([sys.executable, '-m', 'pip', line]))
+        python = shlex.quote(sys.executable)
+        self.shell.system(" ".join([python, "-m", "pip", line]))
+
         print("Note: you may need to restart the kernel to use updated packages.")
 
     @line_magic