CoDEmanX is right, the easiest way is to import it directly.
If you don’t want to do that, you can use the “split” function but it’s more tedious:
say your file contains this text:
value1,value2
value3,value4
myfile = open('myfile.txt', 'r')
values = []
text = myfile.read()
lines = text.split('
')
for l in lines:
words = l.split(',')
for w in words:
values.append(w)
print(values)
This code will return:
['value1', 'value2', 'value3', 'value4']
This problem is just python basics and unrelated to blender though, so you should read how to read files and extract data from them in other places than here…
During a multiple value assignment, the ValueError: need more than 2 values to unpack occurs when either you have fewer objects to assign than variables, or you have more variables than objects. This error caused by the mismatch between the number of values returned and the number of variables in the assignment statement. This error happened mostly in the case of using python split function. Verify the assignment variables. If the number of assignment variables is greater than the total number of variables, delete the excess variable from the assignment operator. The number of objects returned, as well as the number of variables available are the same. This will resolve the value error.