Disable pip version check (#152)

To reduce the spam written by pip.

Author: tristan0x

cpp/lib.py

@@ -273,6 +273,7 @@ def __init__(self, path: str):
         """
         assert isinstance(path, Path)
         self._path = path
+        os.environ["PIP_DISABLE_PIP_VERSION_CHECK"] = "1"
         self.ensure_requirement("setuptools", restart=True)
 
     @property