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William Harpley
20,792 Pointsmessy_list Step 2 error
Not sure why I keep getting this error on step 2 of the Python messy_list challenge.
AttributeError: 'NoneType' object has no attribute 'copy'
messy_list = ["a", 2, 3, 1, False, [1, 2, 3]]
messy_list = messy_list.insert(0,messy_list.pop(3))
loop_list = messy_list.copy()
for item in loop_list:
if type(item) is not int:
messy_list.remove(item)
1 Answer
Grigorij Schleifer
10,365 PointsHi William, your code works just fine in the workspace. I removed the assignment part at the second line and could pass the challenge. To be honest I have no clue why it didn't pass in the first place. But the interpreter is sometimes very picky. Maybe it doesn't like the new colors and is upset
messy_list = ["a", 2, 3, 1, False, [1, 2, 3]]
messy_list.insert(0,messy_list.pop(3)) # assignment removed
loop_list = messy_list.copy()
for item in loop_list:
if type(item) is not int:
messy_list.remove(item)
I hope that helps
William Harpley
20,792 PointsWilliam Harpley
20,792 PointsI came back to this a few days later, and the interpreter like your code better. Tricky little interpreter... appreciate the help :)
Grigorij Schleifer
10,365 PointsGrigorij Schleifer
10,365 PointsHa ha, oh yes ... the interpreter is a drama queen