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Dr. Larson,

I am working the example below in the Anaconda env using the class Jupyter notebook, and I have encountered the following error which says int_val is not defined. I have checked the code several times and can only conclude that this variable does not exist in the "DataMining" list (?).

I would certainly appreciate your thoughts,

Luke Pierce

Slide Type

1 #=======================================================
2 # for loop example with lists
3 print("\nfor loop output:")
4 ​
5 list_example = [int_val, long_val, float_val, bool_val]
6 list_example.insert(0, "DataMining")
7​
8 # notice that the loop ends with a colon and
9 # is designated by the tab alignment
10​
11 for val in list_example:
12 print(str(val) + ' ' + str(type(val)))
13 print("This statement is in the loop")
14
15 print("This statement is outside the loop")

for loop output:

NameError Traceback (most recent call last)
in ()
3 print("\nfor loop output:")
4
----> 5 list_example = [int_val, long_val, float_val, bool_val]
6 list_example.insert(0, "DataMining")
7

NameError: name 'int_val' is not defined