update the search function

pip-install.sh

@@ -14,7 +14,7 @@ print_help() {
 
 search_package() {
     local package=$1
-    curl https://pypi.org/project/$package/\#files -s | grep -Eo https://files\.+$package\.+whl > urls.txt
+    curl https://pypi.org/project/$package/\#files -s | grep -Eo https://files\.+\.+whl > urls.txt
 }
 
 download_package() {