print statements in the loaded code break the output

[pawamoy]

Describe the bug
I just thought about the case where the user could have added print statements that are executed at import time. In that case pytkdocs JSON output would be broken/corrupted.

To Reproduce

$ echo -e '"""Module docstring."""\n\nprint("finished loading")\n' > corrupt.py
$ echo '{"objects": [{"path": "corrupt"}]}' | poetry run pytkdocs | jq
parse error: Invalid literal at line 1, column 9

Expected behavior
The output of the imported code should be discarded.

System (please complete the following information):

• pytkdocs version 0.3.0
• Python version: irrelevant
• OS: irrelevant

Additional context
Possibly related to rdilweb/docs@cc20660 and mkdocstrings/mkdocstrings#91

[pawamoy]

Fixed by 17f71af