--no-input in PipInstaller

Author: coobas

src/poetry/installation/pip_installer.py

@@ -46,7 +46,7 @@ def install(self, package: Package, update: bool = False) -> None:
 
             return
 
-        args = ["install", "--no-deps"]
+        args = ["install", "--no-deps", "--no-input"]
 
         if not package.is_direct_origin() and package.source_url:
             assert package.source_reference is not None