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'int' object has no attribute 'digits'

asked 2023-06-10 04:55:08 +0200

mcmug gravatar image

Hello all,

When I run the following two lines of code,

for j in range(3,4):
   print j.digits(3)

I get the error message

AttributeError: 'int' object has no attribute 'digits'

However, the following two lines give the expected outcome [0,1]:

j=3 
j.digits(3)

What can be wrong?

Thanks in advance!

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2 Answers

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answered 2023-06-10 18:46:10 +0200

updated 2023-06-10 18:47:02 +0200

The issue is that the range function outputs numbers of the type Python int rather than Sage Integer, and digits is only defined for the latter. You could use Sage's srange function instead:

for i in range(2):
    print(type(i))

will produce

<class 'int'>
<class 'int'>

whereas

for i in srange(2):
    print(type(i))

will give

<class 'sage.rings.integer.Integer'>
<class 'sage.rings.integer.Integer'>
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1

answered 2023-06-10 07:17:28 +0200

tolga gravatar image

This should work:

for j in range(3,4):
    print(Integer(j).digits(3))
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Comments

It works. Thanks!

mcmug gravatar imagemcmug ( 2023-06-10 18:08:31 +0200 )edit

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Asked: 2023-06-10 04:55:08 +0200

Seen: 251 times

Last updated: Jun 10 '23