‘numpy.float64’ object is not callable

[javihm77]

I can’t run a simple for because I get this error

[paulinpaloalto]

You must have used the python reserved word range as a variable name someplace. python will let you do that, but it is not a good idea for exactly the reason you see here. In other words, look through your earlier code and see if you say something like:

range = np.zero((4,1))

or

range = 42.

anywhere. In fact you can see that the value that range has is 17.17.... in the print output you show. So how did that happen?

[paulinpaloalto]

Here is some demo code to show the type of problem I’m talking about.

First a normal use of range:

v = np.array(range(8))
print(f"v = {v}")
print(v[0:4])
v = [0 1 2 3 4 5 6 7]
[0 1 2 3]

All fine and dandy. Now watch this:

print(range)
range = 42.
v = np.array(range(8))

<class 'range'>
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-4-2602a35c29cc> in <module>
      1 print(range)
      2 range = 42.
----> 3 v = np.array(range(8))

TypeError: 'float' object is not callable

That error message looks pretty familiar by now, right?

[javihm77]

Baam! that’s the error, I suggest that you fix it in the Programming Assignment: Week 2 practice lab: Linear regression, look:

[rmwkwok]

HI @javihm77,

If we are talking about MLS Course 1 Week 2 Assignment Lab for Linear Regression, the code lines that you show on the screenshot do not exist in the lab. You might get a new copy of the lab by following these instructions, in which it will ask you to rename your current lab’s filename so that the system can get you a new copy.

Raymond

[javihm77]

@paulinpaloalto thanks a lot, exactly what you say is my problem.
@rmwkwok Now I realized that I added those lines, my bad.