python for loop for multiple condition in python

Question

Below is the code:

for x in range(0, 7) + 100:
    print x

Expected output:

Please help me get this output.

Below is the error of the code:

TypeError: can only concatenate list (not "int") to list

micsthepick · Accepted Answer · 2017-06-24 05:42:13Z

3

Since you are using Python 2, range is creating a list. To add a number to the end of a list, first put it in a list, then you can use the addition operator:

for x in range(0, 7) + [100]:

(To do this in python 3, you will need to convert the range into a list, as it range(...) creates a different datatype):

for x in list(range(0, 7)) + [100]:

edited Jun 24, 2017 at 5:42

answered Jun 24, 2017 at 5:31

micsthepick

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2 Comments

micsthepick Over a year ago

@idjaw No, I knew it would work, but I just tested it and it worked as expected.

idjaw Over a year ago

I just saw the python2.7 tag. Right! In Python 2.7 range actually creates a list. That's why that works. In Python 3 that is not the case since it carries over the functionality of what xrange does in Python 2. Doing that in Python 3 will result in: TypeError: unsupported operand type(s) for +: 'range' and 'list'. Even though the tag states Python2.7, it might help to provide some of that detail in the answer considering it could be easily missed by future readers.

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