>>> from solargen import solargen_extract

>>> sg1L = solargen_extract('solargen_data.txt')
>>> sg1L_corr = [
... ['gA', 3.5, 2.5, 4.0, 7.0, 3.2, 4.0],
... ['gA', 3.0, 3.3, 4.4, 2.0, 7.0, 3.0, 4.0, 5.0],
... ['gB', 2.3, 3.5],
... ['gB', 2.7, 3.8],
... ['gB', 3.3, 3.9],
... ['gC', 3.6, 4.0, 7.0, 4.5, 3.0],
... ['gC', 2.4, 3.0, 4.1],
... ['gC', 3.3, 4.0, 3.9, 3.2],
... ['gB', 4.1, 4.1, 4],
... ['gB', 2.9, 2.0, 4.3],
... ]

>>> if sg1L == sg1L_corr:
...     True
... else:
...     print(sg1L)
...     print(sg1L_corr)
True