C4W4 Assignment: Unit test for get_conversation is getting Assertion Error

Please see the error in the following image. I tried to modify the w4_unittest.py but in vain.

OK. I analyzed it myself out side on my pc after downloading data.json. I was putting extra space chars in get_conversation() function. That was causing the error. Removing those extra spaces cleared the test.

Good that in all 16 assignments of this specialization I could get 100% grading.