Update extreme_ers_ssh.py

.github/workflows/python-app.yml

@@ -0,0 +1,39 @@
+# This workflow will install Python dependencies, run tests and lint with a single version of Python
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python
+
+name: Python application
+
+on:
+  push:
+    branches: [ "develop" ]
+  pull_request:
+    branches: [ "develop" ]
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python 3.10
+      uses: actions/setup-python@v3
+      with:
+        python-version: "3.10"
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install flake8 pytest
+        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+    - name: Test with pytest
+      run: |
+        pytest

netmiko/extreme/extreme_ers_ssh.py

@@ -2,6 +2,7 @@
 import re
 from netmiko.cisco_base_connection import CiscoSSHConnection
 from netmiko.exceptions import NetmikoAuthenticationException
+import time
 
 # Extreme ERS presents Enter Ctrl-Y to begin.
 CTRL_Y = "\x19"
@@ -27,6 +28,10 @@ def special_login_handler(self, delay_factor: float = 1.0) -> None:
 
         Older devices the Ctrl-Y is before SSH-login (not 100% sure of this).
 
+        Few devices after SSH-login the Ctrl-Y turns to blank screen-no pattern \
+
+        prompt appears after Enter/Return ( tested ).
+
         Newer devices this is after SSH-login.
         """
 
@@ -46,6 +51,9 @@ def special_login_handler(self, delay_factor: float = 1.0) -> None:
 
             if cntl_y in new_data:
                 self.write_channel(CTRL_Y)
+                time.sleep(1 * delay_factor)
+                # no pattern, blank for few devices till Return keypress
+                self.write_channel(self.RETURN)
             elif "Press ENTER" in new_data:
                 self.write_channel(self.RETURN)
             elif uname in new_data: