CODEWITHSUNDEEP
pythonpython-3.xpython-2.7
probably-asskicker
probably-asskicker

Reputation: 171

TypeError: object of type 'function' has no len() - How do i fix this error?

I am trying to chose a random number from the hostnumbers.txt file. I am getting this error:

TypeError: object of type 'function' has no len()

while running this code:

def prev_hosting_comp_random():
        with open('hostnumbers.txt') as hosts:
                read_hosts = csv.reader(hosts, delimiter = '\n')
                read_hosts = [int(x[0]) for x in list(read_hosts) if x]
                return random.choice(prev_hosting_comp_random)
print(type(prev_hosting_comp_random()))

and the hostnumbers.txt file looks like this:

2312
2324
234234
1245
234

Can you please help me fix this?

EDIT: ERROR TRACEBACK

Traceback (most recent call last):
  File "codeOffshoreupdated.py", line 94, in <module>
    'previous_hosting_id': prev_hosting_comp_random(),
  File "codeOffshoreupdated.py", line 20, in prev_hosting_comp_random
    return random.choice(prev_hosting_comp_random)
  File "/usr/lib64/python3.7/random.py", line 259, in choice
    i = self._randbelow(len(seq))
TypeError: object of type 'function' has no len()

Upvotes: 0

Views: 2061

Answers (2)

FloLie
FloLie

Reputation: 1841

return random.choice(prev_hosting_comp_random) seems wrong, as it is indeed a function as the error message said. You probably want to replace it by return random.choice(read_hosts)

Upvotes: 1

Abbas
Abbas

Reputation: 643

I think you meant

def prev_hosting_comp_random():
        with open('file.txt') as hosts:
                read_hosts = csv.reader(hosts, delimiter = '\n')
                read_hosts = [int(x[0]) for x in list(read_hosts) if x]
                return random.choice(read_hosts)

because random.choice(prev_hosting_comp_random) wont work because prev_hosting_comp_random is a function

Upvotes: 1

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