Error in grading my code

Course Q&A Deep Learning Specialization Neural Networks and Deep Learning
1

although my code is right i keep getting these errors and get 0 for my assignment
what are these basic_sigmoid_test, sigmoid_test,…?!

[ValidateApp | INFO] Validating ‘/home/jovyan/work/submitted/courseraLearner/W2A1/Python_Basics_with_Numpy.ipynb’
[ValidateApp | INFO] Executing notebook with kernel: python3
Tests failed on 8 cell(s)! These tests could be hidden. Please check your submission.

The following cell failed:

print("basic_sigmoid(1) = " + str(basic_sigmoid(1)))

basic_sigmoid_test(basic_sigmoid)

The error was:

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-4-41d37f82dbf3> in <module>
      1 print("basic_sigmoid(1) = " + str(basic_sigmoid(1)))
      2 
----> 3 basic_sigmoid_test(basic_sigmoid)

NameError: name 'basic_sigmoid_test' is not defined

==========================================================================================
The following cell failed:

t_x = np.array([1, 2, 3])
print("sigmoid(t_x) = " + str(sigmoid(t_x)))

sigmoid_test(sigmoid)

The error was:

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-9-51251e2b44ae> in <module>
      2 print("sigmoid(t_x) = " + str(sigmoid(t_x)))
      3 
----> 4 sigmoid_test(sigmoid)

NameError: name 'sigmoid_test' is not defined

==========================================================================================
The following cell failed:

t_x = np.array([1, 2, 3])
print ("sigmoid_derivative(t_x) = " + str(sigmoid_derivative(t_x)))

sigmoid_derivative_test(sigmoid_derivative)

The error was:

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-11-fa7ab0e756fc> in <module>
      2 print ("sigmoid_derivative(t_x) = " + str(sigmoid_derivative(t_x)))
      3 
----> 4 sigmoid_derivative_test(sigmoid_derivative)

NameError: name 'sigmoid_derivative_test' is not defined

==========================================================================================
The following cell failed:

# This is a 3 by 3 by 2 array, typically images will be (num_px_x, num_px_y,3) wher...
t_image = np.array([[[ 0.67826139,  0.29380381],
                     [ 0.90714982,  0.52835647],
                     [ 0.4215251 ,  0.45017551]],

                   [[ 0.92814219,  0.96677647],
                    [ 0.85304703,  0.52351845],
                    [ 0.19981397,  0.27417313]],

                   [[ 0.60659855,  0.00533165],
                    [ 0.10820313,  0.49978937],
                    [ 0.34144279,  0.94630077]]])

print ("image2vector(image) = " + str(image2vector(t_image)))

image2vector_test(image2vector)

The error was:

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-13-333007a11e42> in <module>
     14 print ("image2vector(image) = " + str(image2vector(t_image)))
     15 
---> 16 image2vector_test(image2vector)

NameError: name 'image2vector_test' is not defined

==========================================================================================
The following cell failed:

x = np.array([[0, 3, 4],
              [1, 6, 4]])
print("normalizeRows(x) = " + str(normalize_rows(x)))

normalizeRows_test(normalize_rows)

The error was:

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-15-7c7c8401963e> in <module>
      3 print("normalizeRows(x) = " + str(normalize_rows(x)))
      4 
----> 5 normalizeRows_test(normalize_rows)

NameError: name 'normalizeRows_test' is not defined

==========================================================================================
The following cell failed:

t_x = np.array([[9, 2, 5, 0, 0],
                [7, 5, 0, 0 ,0]])
print("softmax(x) = " + str(softmax(t_x)))

softmax_test(softmax)

The error was:

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-17-589a35b2026d> in <module>
      3 print("softmax(x) = " + str(softmax(t_x)))
      4 
----> 5 softmax_test(softmax)

NameError: name 'softmax_test' is not defined

==========================================================================================
The following cell failed:

yhat = np.array([.9, 0.2, 0.1, .4, .9])
y = np.array([1, 0, 0, 1, 1])
print("L1 = " + str(L1(yhat, y)))

L1_test(L1)

The error was:

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-21-3f77e39d7fb5> in <module>
      3 print("L1 = " + str(L1(yhat, y)))
      4 
----> 5 L1_test(L1)

NameError: name 'L1_test' is not defined

==========================================================================================
The following cell failed:

yhat = np.array([.9, 0.2, 0.1, .4, .9])
y = np.array([1, 0, 0, 1, 1])

print("L2 = " + str(L2(yhat, y)))

L2_test(L2)

The error was:

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-23-8bbdf5303d2e> in <module>
      4 print("L2 = " + str(L2(yhat, y)))
      5 
----> 6 L2_test(L2)

NameError: name 'L2_test' is not defined
2

When you open the notebook, you need to run all the cells from the top. In the first cell, you will find ‘import …’ statements that are defined to load all the necessary dependencies required to run this assignment.

3

i just have :
import math
import numpy as np
and it is not because of the way of running the cells. because i choose run all the cells

4

Please verify that there will be another line 'from public_tests import * ’ in the basic_sigmoid function cell, from where these test functions are loaded.

5

Every time you open the notebook, you should run all of the cells.

Tip: You should not add any additional import statements to any of the code cells. Sometimes students do this to try and work around problems caused by not running all of the cells first.