List IndexError after processing all data with Python 3 - list

Question

Here is the code:
name = input("Enter Molecule ID: ")
name_in = name+'.lac.dat'
print(name_in)
atm_chg = []
with open(name_in) as f:
# skip two lines
f.readline()
f.readline()
for line in f.readlines():
atm_chg.append(float( line.split()[-1] ))
This is to process input for a larger Python program.
The input is:
LOEWDIN ATOMIC CHARGES
----------------------
0 C : -0.780631
1 H : 0.114577
2 Br: 0.309802
3 Cl: 0.357316
4 F : -0.001065
Finally the runtime messages are:
runfile('/home/comp/Apps/Python/Testing/ReadFile_2.py', wdir='/home/comp/Apps/Python/Testing')
Enter Molecule ID: A
A.lac.dat
Traceback (most recent call last):
File "<ipython-input-1-8c665940b39f>", line 1, in <module>
runfile('/home/comp/Apps/Python/Testing/ReadFile_2.py', wdir='/home/comp/Apps/Python/Testing')
File "/home/comp/Apps/anaconda3/lib/python3.6/site-packages/spyder/utils/site/sitecustomize.py", line 866, in runfile
execfile(filename, namespace)
File "/home/comp/Apps/anaconda3/lib/python3.6/site-packages/spyder/utils/site/sitecustomize.py", line 102, in execfile
exec(compile(f.read(), filename, 'exec'), namespace)
File "/home/comp/Apps/Python/Testing/ReadFile_2.py", line 27, in <module>
atm_chg.append(float( line.split()[-1] ))
IndexError: list index out of range
In spite of the errors there is an entry in the Variable Explorer (Spyder IDE):
[-0.780631, 0.114577, 0.309802, 0.357316, -0.001065]
which is exactly what I require.

Answer 1

The program is probably crashing because it's trying to process an empty line beyond the last line of data. You can fix this by making sure the line is non-empty before processing it:
for line in f.readlines():
if line.strip(): # is the line non-empty, ignoring white space
atm_chg.append(float( line.split()[-1] ))