[KiField Bug] Missing dependency sexpdata for pip install

[scandey]

Describe the bug A clear and concise description of what the bug is.

After a clean install of Kifield 0.1.18 via Pip, first attempt at extracting from Kicad 5.1.10 schematic throws ModuleNotFoundError. This issue is new since 0.1.17.

To Reproduce Steps to reproduce the behavior:

1. Attempt to extract a Kicad 5.1.10 schematic to .csv or .xlsx
2. See error

Traceback (most recent call last): File "/usr/local/bin/kifield", line 5, in from kifield.main import main File "/usr/local/lib/python3.9/site-packages/kifield/main.py", line 15, in from .kifield import * File "/usr/local/lib/python3.9/site-packages/kifield/kifield.py", line 22, in from .sch import Schematic, Schematic_V6 File "/usr/local/lib/python3.9/site-packages/kifield/sch.py", line 16, in import sexpdata ModuleNotFoundError: No module named 'sexpdata'

Expected behavior A clear and concise description of what you expected to happen.

Schematic should be quietly extracted.

Desktop (please complete the following information):

• OS: Mac OS 11.3
• Python version: Python 3.9.5
• KiField version: 0.1.18
• KiCad version: 5.1.10_10_14

Additional context

After installing sexpdata via Pip separately, the extraction process continues to another unrelated error (NameError: name 'reduce' is not defined).

[xesscorp]

Oops. Thanks for finding that. At least it's easy to fix.