Q:

Python - Create list with numbers between 2 values?

How would I create a list with values between two values I put in? 
For example, the following list is generated for values from 11 to 16:
list = [11, 12, 13, 14, 15, 16]

A:

Use range. In Python 2.x it returns a list so all you need is:
>>> range(11, 17)
[11, 12, 13, 14, 15, 16]

In Python 3.x range is a iterator. So, you need to convert it to a list:
>>> list(range(11, 17))
[11, 12, 13, 14, 15, 16]

Note: The second number is exclusive. So, here it needs to be 16+1 = 17
EDIT:
To respond to the question about incrementing by 0.5, the easiest option would probably be to use numpy's arange() and .tolist():
>>> import numpy as np
>>> np.arange(11, 17, 0.5).tolist()

[11.0, 11.5, 12.0, 12.5, 13.0, 13.5,
 14.0, 14.5, 15.0, 15.5, 16.0, 16.5]

A:

You seem to be looking for range():
>>> x1=11
>>> x2=16
>>> range(x1, x2+1)
[11, 12, 13, 14, 15, 16]
>>> list1 = range(x1, x2+1)
>>> list1
[11, 12, 13, 14, 15, 16]

For incrementing by 0.5 instead of 1, say:
>>> list2 = [x*0.5 for x in range(2*x1, 2*x2+1)]
>>> list2
[11.0, 11.5, 12.0, 12.5, 13.0, 13.5, 14.0, 14.5, 15.0, 15.5, 16.0]

A:

Try:
range(x1,x2+1)  

That is a list in Python 2.x and behaves mostly like a list in Python 3.x.  If you are running Python 3 and need a list that you can modify, then use: 
list(range(x1,x2+1))

