Fix import statements

[davidamirkhanov]

input: %s{10}

Traceback (most recent call last):
File "C:/Users/Daria/PycharmProjects/TestCaseGenerator/program.py", line 19, in
data = gen.generate(**arg)
File "C:\Users\Daria\PycharmProjects\TestCaseGenerator\src\generators.py", line 229, in generate
response = self.generate_string(**kwargs)
File "C:\Users\Daria\PycharmProjects\TestCaseGenerator\src\generators.py", line 273, in generate_string
output = ''.join([random.choice(valid_chars) for _ in range(self.parse_int(kwargs['length']))])
File "C:\Users\Daria\PycharmProjects\TestCaseGenerator\src\generators.py", line 273, in
output = ''.join([random.choice(valid_chars) for _ in range(self.parse_int(kwargs['length']))])
AttributeError: 'builtin_function_or_method' object has no attribute 'choice'

Generators.py imports only randint and random from random module, but also uses 'choice'

[masterashu]

Good work

[davidamirkhanov]

Oh, It got to the same pool request, as the fix for issue #7.... I don't know if I can separate them now...