Weird output with os.system('clear')

- VS Code Version: 1.33.1
- OS Version: macOS 10.14.4
- Code Runner Version: 0.9.9

**Describe the bug**
Description of what the bug is.
it produces very weird output if os.system('clear') is used in a very simple hello world program
**To Reproduce**
Steps to reproduce the behavior:

1. import os
2. os.system('clear')
3. print("Hello Buddy")
4. Run with code-runner (using python3)

**Actual behavior**
Description of what happened actually.
When I run it with code-runner I get this output.
"[3JHello Buddy"

**Expected behavior**
Description of what you expected to happen.
I just expected to see a simple message below
"Hello Buddy"

**Screenshots**
If applicable, add screenshots to help explain your problem.