Assignment in python?

Question

Python

What is the reason?

b = ['5', '6', '7']
с = b.count('5')
print(c)

Mistake:

Traceback (most recent call last):
  File "<input>", line 1, in <module>
NameError: name 'c' is not defined

Answer 1

Before opening the spoiler, try to find the error yourself

Не смешивате кириллицу и латиницу в коде

Answer 2

с = b.count('5')
Your "s" is written in Cyrillic, apparently the layout was not switched.