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Problem :

When I try to run following command: python manage.py updatestats I get the error as below:

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

I am unable to figure out what is causing this. I have already tried to convert it to the string, but still I get the same error. Any ideas?

Error traceback:

Traceback (most recent call last):
File "manage.py", line 31, in <module>
File "/Users/alecxe/project/Dev/lib/python3.4/site-packages/django/core/management/__init__.py", line 450, in execute_from_command_line
File "/Users/alecxe/project/Dev/lib/python3.4/site-packages/django/core/management/__init__.py", line 444, in execute
File "/Users/alecxe/project/Dev/lib/python3.4/site-packages/django/core/management/base.py", line 448, in run_from_argv
self.execute(*args, **cmd_options)
File "/Users/alecxe/project/Dev/lib/python3.4/site-packages/django/core/management/base.py", line 400, in execute
output = self.handle(*args, **options)
File "/Users/alecxe/project/Dev/project_files/project/main/management/commands/updatestats.py", line 34, in handle


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1 Answer

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Solution :

What this error is telling you is that you should not convert the entire list into the integer. You should get the index from a list and then simply convert that into an integer:

a= ["0", "1", "2"] 
b = int(a[0]) #accessing a zeroth element

If the list elements are not the strings then you will need to convert them to the strings before using the str.join as shown below:

a = [0, 1, 2]
b = ''.join(map(str, a))
c = int(b)

Also, as shown above please make sure that you are not returning the nested list.

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