Testing Android application in Appium using Python client library

I am new to python. I am trying to access my android application using python. Till here it works fine. Now for the test case I want to get the edit text and set values to it then click submit button. The code for getting the elements using UIAutomator and clicking the button also works for me. My issue is with sending text value to the edit text field.

It gives me following log in the Appium:
Appium version:1.4.0

info: → POST /wd/hub/session/7f027816-e551-42f5-9830-e7ffc03785cd/element/1/clear {“sessionId”:“7f027816-e551-42f5-9830-e7ffc03785cd”,“id”:“1”}
info: [debug] Pushing command to appium work queue: [“element:clear”,{“elementId”:“1”}]
info: [debug] [BOOTSTRAP] [debug] Got data from client: {“cmd”:“action”,“action”:“element:clear”,“params”:{“elementId”:“1”}}
info: [debug] [BOOTSTRAP] [debug] Got command of type ACTION
info: [debug] [BOOTSTRAP] [debug] Got command action: clear
info: [debug] [BOOTSTRAP] [debug] Attempting to clear using UiObject.clearText().
info: [debug] [BOOTSTRAP] [debug] Text remains after clearing, but it appears to be hint text.
info: [debug] [BOOTSTRAP] [debug] Returning result: {“value”:true,“status”:0}
info: [debug] Responding to client with success: {“status”:0,“value”:true,“sessionId”:“7f027816-e551-42f5-9830-e7ffc03785cd”}
info: ← POST /wd/hub/session/7f027816-e551-42f5-9830-e7ffc03785cd/element/1/clear 200 6238.142 ms - 76 {“status”:0,“value”:true,“sessionId”:“7f027816-e551-42f5-9830-e7ffc03785cd”}
info: → POST /wd/hub/session/7f027816-e551-42f5-9830-e7ffc03785cd/element/1/value {“sessionId”:“7f027816-e551-42f5-9830-e7ffc03785cd”,“value”:[“p”,“r”,“a”,“v”,“i”,“n”,“k”,“h”,“1”,“9”,“9”,“0”,“@”,“g”,“m”,“a”,“i”,“l”,“.”,“c”,“o”,“m”],“id”:“1”}
info: [debug] Pushing command to appium work queue: [“element:setText”,{“elementId":“1”,“text”:"[email protected]”,“replace”:false}]
info: [debug] [BOOTSTRAP] [debug] Got data from client: {“cmd”:“action”,“action”:“element:setText”,“params”:{“elementId":“1”,“text”:"[email protected]”,“replace”:false}}

Please help me out of this.