TypeError: int() argument must be a string, a bytes-like object or a number, not 'list'


I having trouble passing a function as a parameter to another function. This is my code:


def display_pageviews(hostname):
    pageviews_results = get_pageviews_query(service, hostname).execute()
    if pageviews_results.get('rows', []):
        pv = pageviews_results.get('rows')
        return pv[0]
        return None

def get_pageviews_query(service, hostname):  
    return service.data().ga().get(
        filters='ga:hostname==%s' % hostname,)


class Stats(models.Model):
    user = models.OneToOneField('auth.User')
    views = models.IntegerField()
    visits = models.IntegerField()
    unique_visits = models.IntegerField()


class Command(BaseCommand):

    def handle(self, *args, **options):
        users = User.objects.all()
            for user in users:
                hostname = '%s.%s' % (user.username, settings.NETWORK_DOMAIN)
                stats = Stats.objects.update_or_create(
        except FieldError:
            print ('There was a field error.')

When I run this: python manage.py updatestats I get the error:

TypeError: int() argument must be a string, a bytes-like object or a
number, not ‘list’

I don’t know what’s causing this. I’ve tried converting it to a string, but I get the same error. Any ideas?

Full traceback:

Traceback (most recent call last):
  File "manage.py", line 20, in <module>
  File "/Users/myusername/project/Dev/lib/python3.4/site-packages/django/core/management/__init__.py", line 353, in execute_from_command_line
  File "/Users/myusername/project/Dev/lib/python3.4/site-packages/django/core/management/__init__.py", line 345, in execute
  File "/Users/myusername/project/Dev/lib/python3.4/site-packages/django/core/management/base.py", line 348, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/Users/myusername/project/Dev/lib/python3.4/site-packages/django/core/management/base.py", line 399, in execute
    output = self.handle(*args, **options)
  File "/Users/myusername/project/Dev/project_files/project/main/management/commands/updatestats.py", line 23, in handle
  File "/Users/myusername/project/Dev/lib/python3.4/site-packages/django/db/models/manager.py", line 122, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "/Users/myusername/project/Dev/lib/python3.4/site-packages/django/db/models/query.py", line 480, in update_or_create
    obj = self.get(**lookup)
  File "/Users/myusername/project/Dev/lib/python3.4/site-packages/django/db/models/query.py", line 378, in get
    clone = self.filter(*args, **kwargs)
  File "/Users/myusername/project/Dev/lib/python3.4/site-packages/django/db/models/query.py", line 790, in filter
    return self._filter_or_exclude(False, *args, **kwargs)
  File "/Users/myusername/project/Dev/lib/python3.4/site-packages/django/db/models/query.py", line 808, in _filter_or_exclude
    clone.query.add_q(Q(*args, **kwargs))
  File "/Users/myusername/project/Dev/lib/python3.4/site-packages/django/db/models/sql/query.py", line 1243, in add_q
    clause, _ = self._add_q(q_object, self.used_aliases)
  File "/Users/myusername/project/Dev/lib/python3.4/site-packages/django/db/models/sql/query.py", line 1269, in _add_q
    allow_joins=allow_joins, split_subq=split_subq,
  File "/Users/myusername/project/Dev/lib/python3.4/site-packages/django/db/models/sql/query.py", line 1203, in build_filter
    condition = self.build_lookup(lookups, col, value)
  File "/Users/myusername/project/Dev/lib/python3.4/site-packages/django/db/models/sql/query.py", line 1099, in build_lookup
    return final_lookup(lhs, rhs)
  File "/Users/myusername/project/Dev/lib/python3.4/site-packages/django/db/models/lookups.py", line 19, in __init__
    self.rhs = self.get_prep_lookup()
  File "/Users/myusername/project/Dev/lib/python3.4/site-packages/django/db/models/lookups.py", line 57, in get_prep_lookup
    return self.lhs.output_field.get_prep_lookup(self.lookup_name, self.rhs)
  File "/Users/myusername/project/Dev/lib/python3.4/site-packages/django/db/models/fields/__init__.py", line 1860, in get_prep_lookup
    return super(IntegerField, self).get_prep_lookup(lookup_type, value)
  File "/Users/myusername/project/Dev/lib/python3.4/site-packages/django/db/models/fields/__init__.py", line 744, in get_prep_lookup
    return self.get_prep_value(value)
  File "/Users/myusername/project/Dev/lib/python3.4/site-packages/django/db/models/fields/__init__.py", line 1854, in get_prep_value
    return int(value)
TypeError: int() argument must be a string, a bytes-like object or a number, not 'list'


Alright, I understand what the issue is. I used the shell to get the type of function output:

>>> type(display_pageviews('test.domain.com'))
<class 'list'>

I tried with this but it is still considered as a list:

pv = pageviews_results.get('rows')[0]
    return pv
Asked By: Urdro



What the error is telling, is that you can’t convert an entire list into an integer. You could get an index from the list and convert that into an integer:

x = ["0", "1", "2"] 
y = int(x[0]) #accessing the zeroth element

If you’re trying to convert a whole list into an integer, you are going to have to convert the list into a string first:

x = ["0", "1", "2"]
y = ''.join(x) # converting list into string
z = int(y)

If your list elements are not strings, you’ll have to convert them to strings before using str.join:

x = [0, 1, 2]
y = ''.join(map(str, x))
z = int(y)

Also, as stated above, make sure that you’re not returning a nested list.

Answered By: Christian Dean

int() argument must be a string, a bytes-like object, or a number, not ‘NoneType’

According to the error, you can’t convert strings type data into integers, So if a column contains null values as NaN then the type of NaN is float, so you can convert that into float.

check type of NaN -> type(np.NaN) ==> float

Answered By: mukesh yadav
Categories: questions Tags: , ,
Answers are sorted by their score. The answer accepted by the question owner as the best is marked with
at the top-right corner.