When applying PEP8, which is variable names are legal code example

Example 1: camelcase naming convention python

# CamelCase is the way you are meant to name classes:
class ExampleClass(self):
  pass
# Start each word with a capital
# Don't seperate words with underscores

Example 2: pep8

# pep8 Style Guide for Lists (easier to see indentation imo)
my_list = [
    1, 2, 3,
    4, 5, 6,
]
result = some_function_that_takes_arguments(
    'a', 'b', 'c',
    'd', 'e', 'f',
)

Example 3: class name convention python

# PEP 8 Class names
# Class names should normally use the CapWords convention.

class MyClass:
  def __init__(self):
    # Variable and method names are snake_case
    self.load_time = 25
  def print_value(self, value):
    print(value)