Python 3.11.5 (main, Sep 11 2023, 08:31:25) [Clang 14.0.6 ]

Type "copyright", "credits" or "license" for more information.

IPython 8.15.0 -- An enhanced Interactive Python.

Restarting kernel...

In [1]: runfile('/Users/py4cs/Desktop/lab4.py', wdir='/Users/py4cs/Desktop')

In [2]: ret = seq_sqrt([])

In [3]: ret

In [4]: print(None)

None

In [5]: seq_sqrt([])

In [6]: runfile('/Users/py4cs/Desktop/lab4.py', wdir='/Users/py4cs/Desktop')

In [7]: seq_sqrt([])

XX 1

In [8]: runfile('/Users/py4cs/Desktop/lab4.py', wdir='/Users/py4cs/Desktop')

XX 1

In [9]: runfile('/Users/py4cs/Desktop/lab4.py', wdir='/Users/py4cs/Desktop')

XX 1

XX 2 []

In [10]: runfile('/Users/py4cs/Desktop/lab4.py', wdir='/Users/py4cs/Desktop')

XX 1

XX 2 []

In [11]: runfile('/Users/py4cs/Desktop/lab4.py', wdir='/Users/py4cs/Desktop')

XX 1

XX 2 []

In [12]: runfile('/Users/py4cs/Desktop/lab4.py', wdir='/Users/py4cs/Desktop')

In [13]: seq_sqrt([])

XX 1

XX 2 []

Out[13]: []

In [14]: seq_sqrt([0, 1, 2])

XX 1

XX 2 []

XX 3

Out[14]: [0.0, 1.0, 1.4142135623730951]

In [15]: runfile('/Users/py4cs/Desktop/lab4.py', wdir='/Users/py4cs/Desktop')

In [16]: seq_sqrt([0, 1, 2])

XX 1

XX 2 []

XX 3, x={x}

Out[16]: [0.0, 1.0, 1.4142135623730951]

In [17]: runfile('/Users/py4cs/Desktop/lab4.py', wdir='/Users/py4cs/Desktop')

In [18]: seq_sqrt([0, 1, 2])

XX 1

XX 2 []

XX 3, x=0

XX 3, x=1

XX 3, x=2

Out[18]: [0.0, 1.0, 1.4142135623730951]

In [19]: seq_sqrt([0, 1, 2])

XX 1

XX 2 []

XX 3, x=0

XX 3, x=1

XX 3, x=2

Out[19]: [0.0, 1.0, 1.4142135623730951]

In [20]: runfile('/Users/py4cs/Desktop/lab4.py', wdir='/Users/py4cs/Desktop')

In [21]: runfile('/Users/py4cs/Desktop/lab4.py', wdir='/Users/py4cs/Desktop')

In [22]: seq_sqrt([0, 1, 2])

XX 1

XX 2 []

XX 3, x=0

Out[22]: [0.0]

In [23]: noaa_data_string = 'Southampton / Weather Centre, United Kingdom (EGHI) 50-54N 001-24W 0M\nSep 19, 2009 - 09:20 AM EDT / 2009.09.19 1320 ...0%\nPressure (altimeter): 29.97 in. Hg (1015 hPa)\nob: EGHI 191320Z 01005KT 320V050 9000 FEW040 21/13 Q1015\ncycle: 13'

In [24]: print(noaa_data_string)

Southampton / Weather Centre, United Kingdom (EGHI) 50-54N 001-24W 0M

Sep 19, 2009 - 09:20 AM EDT / 2009.09.19 1320 ...0%

Pressure (altimeter): 29.97 in. Hg (1015 hPa)

ob: EGHI 191320Z 01005KT 320V050 9000 FEW040 21/13 Q1015

cycle: 13

In [25]: data = """Southampton / Weather Centre, United Kingdom (EGHI) 50-54N 001-24W 0M

...: Sep 19, 2009 - 09:20 AM EDT / 2009.09.19 1320 UTC

...: Wind: from the N (010 degrees) at 6 MPH (5 KT) (direction variable):0

...: Visibility: 5 mile(s):0

...: Sky conditions: mostly clear

...: Temperature: 69 F (21 C)

...: Dew Point: 55 F (13 C)

...: Relative Humidity: 60%

...: Pressure (altimeter): 29.97 in. Hg (1015 hPa)

...: ob: EGHI 191320Z 01005KT 320V050 9000 FEW040 21/13 Q1015

...: cycle: 13"""

In [26]: print(data)

Southampton / Weather Centre, United Kingdom (EGHI) 50-54N 001-24W 0M

Sep 19, 2009 - 09:20 AM EDT / 2009.09.19 1320 UTC

Wind: from the N (010 degrees) at 6 MPH (5 KT) (direction variable):0

Visibility: 5 mile(s):0

Sky conditions: mostly clear

Temperature: 69 F (21 C)

Dew Point: 55 F (13 C)

Relative Humidity: 60%

Pressure (altimeter): 29.97 in. Hg (1015 hPa)

ob: EGHI 191320Z 01005KT 320V050 9000 FEW040 21/13 Q1015

cycle: 13

In [27]: runfile('/Users/py4cs/Desktop/training4.py', wdir='/Users/py4cs/Desktop')

In [28]: noaa_temperature(data)

Traceback (most recent call last):

Cell In[28], line 1

noaa_temperature(data)

File ~/Desktop/training4.py:35 in noaa_temperature

Tstr = line.split('(')[1][0:2]

IndexError: list index out of range

In [29]: line = data.split("\n")

In [30]: line = data.split("\n")[4]

In [31]: line

Out[31]: 'Sky conditions: mostly clear'

In [32]: runfile('/Users/py4cs/Desktop/side_effect1.py', wdir='/Users/py4cs/Desktop')

In [33]: runfile('/Users/py4cs/Desktop/side_effect1.py', wdir='/Users/py4cs/Desktop')

In [34]: [10, 20, 30].pop()

Out[34]: 30

In [35]: a = [10, 20, 30]

In [36]: a.pop()

Out[36]: 30

In [37]: a

Out[37]: [10, 20]

In [38]: runfile('/Users/py4cs/Desktop/side_effect1.py', wdir='/Users/py4cs/Desktop')

In [39]: xs

Out[39]: []

In [40]: runfile('/Users/py4cs/Desktop/side_effect1.py', wdir='/Users/py4cs/Desktop')

xs=[]

In [41]: %reset -f

In [42]: debugfile('/Users/py4cs/Desktop/side_effect1.py', wdir='/Users/py4cs/Desktop')

> /Users/py4cs/Desktop/side_effect1.py(1)<module>()

----> 1 def sum_(xs):

2 s = 0

3 for i in range(len(xs)):

4 s = s + xs.pop()

5 return s

IPdb [1]: !next

IPdb [1]: !step

--Call--

IPdb [1]: !next

--Return--

IPdb [1]: !next

xs=[]

--Return--

IPdb [1]: !exit

In [43]: debugfile('/Users/py4cs/Desktop/side_effect1.py', wdir='/Users/py4cs/Desktop')

> /Users/py4cs/Desktop/side_effect1.py(1)<module>()

----> 1 def sum_(xs):

2 s = 0

3 for i in range(len(xs)):

4 s = s + xs.pop()

5 return s

IPdb [1]: !next

IPdb [1]: !step

--Call--

IPdb [1]: !return

60--Return--

IPdb [1]: !next

--Call--

IPdb [1]: !return

--Return--

IPdb [1]: !return

IPdb [1]: !exit

In [44]: runfile('/Users/py4cs/Desktop/side_effect1.py', wdir='/Users/py4cs/Desktop')

xs=[]

In [45]: debugfile('/Users/py4cs/Desktop/side_effect1.py', wdir='/Users/py4cs/Desktop')

> /Users/py4cs/Desktop/side_effect1.py(1)<module>()

----> 1 def sum_(xs):

2 s = 0

3 for i in range(len(xs)):

1 4 s = s + xs.pop()

5 return s

IPdb [1]: !continue

> /Users/py4cs/Desktop/side_effect1.py(4)sum_()

2 s = 0

3 for i in range(len(xs)):

1---> 4 s = s + xs.pop()

5 return s

IPdb [2]: !next

--Return--

IPdb [2]: !next

IPdb [2]: exit

In [46]: debugfile('/Users/py4cs/Desktop/side_effect1.py', wdir='/Users/py4cs/Desktop')

> /Users/py4cs/Desktop/side_effect1.py(1)<module>()

----> 1 def sum_(xs):

2 s = 0

3 for i in range(len(xs)):

4 s = s + xs.pop()

5 return s

IPdb [1]: n

> /Users/py4cs/Desktop/side_effect1.py(8)<module>()

----> 8 xs = [10, 20, 30]

9 res = sum_(xs)

10 print(res)

IPdb [2]: n

> /Users/py4cs/Desktop/side_effect1.py(9)<module>()

8 xs = [10, 20, 30]

----> 9 res = sum_(xs)

10 print(res)

11 print(f"xs={xs}")

IPdb [3]: s

--Call--

> /Users/py4cs/Desktop/side_effect1.py(1)sum_()

----> 1 def sum_(xs):

2 s = 0

3 for i in range(len(xs)):

4 s = s + xs.pop()

5 return s

IPdb [4]: n

> /Users/py4cs/Desktop/side_effect1.py(2)sum_()

1 def sum_(xs):

----> 2 s = 0

3 for i in range(len(xs)):

4 s = s + xs.pop()

5 return s

IPdb [5]: n

> /Users/py4cs/Desktop/side_effect1.py(3)sum_()

1 def sum_(xs):

2 s = 0

----> 3 for i in range(len(xs)):

4 s = s + xs.pop()

5 return s

IPdb [6]: n

> /Users/py4cs/Desktop/side_effect1.py(4)sum_()

2 s = 0

3 for i in range(len(xs)):

----> 4 s = s + xs.pop()

5 return s

IPdb [7]: n

> /Users/py4cs/Desktop/side_effect1.py(3)sum_()

1 def sum_(xs):

2 s = 0

----> 3 for i in range(len(xs)):

4 s = s + xs.pop()

5 return s

IPdb [8]: p s

IPdb [9]: exit

In [47]: 10 / 0

Traceback (most recent call last):

Cell In[47], line 1

10 / 0

ZeroDivisionError: division by zero

In [48]: print(x)

Traceback (most recent call last):

Cell In[48], line 1

print(x)

NameError: name 'x' is not defined

In [49]: x

Traceback (most recent call last):

Cell In[49], line 1

NameError: name 'x' is not defined

In [50]: runfile('/Users/py4cs/Desktop/untitled14.py', wdir='/Users/py4cs/Desktop')

Traceback (most recent call last):

File ~/anaconda3/lib/python3.11/site-packages/spyder_kernels/py3compat.py:356 in compat_exec

exec(code, globals, locals)

File ~/Desktop/untitled14.py:4

f = open('this-file-does-not-exist', 'rt')

FileNotFoundError: [Errno 2] No such file or directory: 'this-file-does-not-exist'

In [51]: runfile('/Users/py4cs/Desktop/untitled14.py', wdir='/Users/py4cs/Desktop')

The file could not be found

In [52]: sys.exit(1)

Traceback (most recent call last):

Cell In[52], line 1

sys.exit(1)

NameError: name 'sys' is not defined

In [53]: import sys

In [54]: sys.exit(1)

An exception has occurred, use %tb to see the full traceback.

SystemExit: 1

/Users/py4cs/anaconda3/lib/python3.11/site-packages/IPython/core/interactiveshell.py:3534: UserWarning: To exit: use 'exit', 'quit', or Ctrl-D.

warn("To exit: use 'exit', 'quit', or Ctrl-D.", stacklevel=1)

In [55]: runfile('/Users/py4cs/Desktop/untitled15.py', wdir='/Users/py4cs/Desktop')

Program starts

An exception has occurred, use %tb to see the full traceback.

SystemExit: 1

In [56]: runfile('/Users/py4cs/Desktop/untitled14.py', wdir='/Users/py4cs/Desktop')

The file could not be found

An exception has occurred, use %tb to see the full traceback.

Traceback (most recent call last):

File ~/Desktop/untitled14.py:5

f = open('this-file-does-not-exist', 'rt')

FileNotFoundError: [Errno 2] No such file or directory: 'this-file-does-not-exist'

During handling of the above exception, another exception occurred:

SystemExit: 1

In [57]: runfile('/Users/py4cs/Desktop/untitled14.py', wdir='/Users/py4cs/Desktop')

The file could not be found

In [58]: runfile('/Users/py4cs/Desktop/untitled14.py', wdir='/Users/py4cs/Desktop')

The file could not be found

[Errno 2] No such file or directory: 'this-file-does-not-exist'

In [59]: runfile('/Users/py4cs/Desktop/untitled14.py', wdir='/Users/py4cs/Desktop')

The file could not be found

Traceback (most recent call last):

File ~/anaconda3/lib/python3.11/site-packages/spyder_kernels/py3compat.py:356 in compat_exec

exec(code, globals, locals)

File ~/Desktop/untitled14.py:5

f = open('this-file-does-not-exist', 'rt')

FileNotFoundError: [Errno 2] No such file or directory: 'this-file-does-not-exist'

In [60]: open('this-file-does-not-exist', 'rt')

Traceback (most recent call last):

Cell In[60], line 1

open('this-file-does-not-exist', 'rt')

File ~/anaconda3/lib/python3.11/site-packages/IPython/core/interactiveshell.py:286 in _modified_open

return io_open(file, *args, **kwargs)

FileNotFoundError: [Errno 2] No such file or directory: 'this-file-does-not-exist'

In [61]: runfile('/Users/py4cs/Desktop/untitled14.py', wdir='/Users/py4cs/Desktop')

The file could not be found

In [62]: runfile('/Users/py4cs/Desktop/untitled14.py', wdir='/Users/py4cs/Desktop')

The file could not be found - the program has to stop

In [63]: runfile('/Users/py4cs/Desktop/untitled14.py', wdir='/Users/py4cs/Desktop')

The file could not be found - the program has to stop

Traceback (most recent call last):

File ~/anaconda3/lib/python3.11/site-packages/spyder_kernels/py3compat.py:356 in compat_exec

exec(code, globals, locals)

File ~/Desktop/untitled14.py:5

f = open('this-file-does-not-exist', 'rt')

FileNotFoundError: [Errno 2] No such file or directory: 'this-file-does-not-exist'

In [64]: runfile('/Users/py4cs/Desktop/untitled16.py', wdir='/Users/py4cs/Desktop')

In [65]: my_complicated_function("hello world")

Traceback (most recent call last):

Cell In[65], line 1

my_complicated_function("hello world")

File ~/Desktop/untitled16.py:3 in my_complicated_function

raise NotImplementedError(message)

NotImplementedError: Called with x=hello world

In [66]: runfile('/Users/py4cs/Desktop/untitled16.py', wdir='/Users/py4cs/Desktop')

In [67]: my_complicated_function("hello world")

Traceback (most recent call last):

Cell In[67], line 1

my_complicated_function("hello world")

File ~/Desktop/untitled16.py:3 in my_complicated_function

raise NotImplementedError([message, 42])

NotImplementedError: ['Called with x=hello world', 42]

In [68]: runfile('/Users/py4cs/Desktop/print_line_sum_of_file.py', wdir='/Users/py4cs/Desktop')

380

In [69]: runfile('/Users/py4cs/Desktop/print_line_sum_of_file.py', wdir='/Users/py4cs/Desktop')

380

Traceback (most recent call last):

File ~/anaconda3/lib/python3.11/site-packages/spyder_kernels/py3compat.py:356 in compat_exec

exec(code, globals, locals)

File ~/Desktop/print_line_sum_of_file.py:24

print_line_sum_of_file('data.txt')

File ~/Desktop/print_line_sum_of_file.py:18 in print_line_sum_of_file

number = int(term)

ValueError: invalid literal for int() with base 10: 'cat'

In [70]: runfile('/Users/py4cs/Desktop/print_line_sum_of_file.py', wdir='/Users/py4cs/Desktop')

380

In [71]: print()

In [71]:

In [72]: print("Hello")

Hello

In [73]: print(42)

In [74]: 42.__str__()

Cell In[74], line 1

42.__str__()

SyntaxError: invalid decimal literal

In [75]: a = 42

In [76]: a.__str__()

Out[76]: '42'

In [77]: str(42)

Out[77]: '42'

In [78]: print("dog", "cat", 42)

dog cat 42

In [79]: print("Dog", end='')

Dog

In [80]: print("Dog", end=''); print("Cat")

DogCat

In [81]: print("Dog", end='\n\n'); print("Cat")

Dog

Cat

In [82]: print(1); print(2)

In [83]: print(1) print(2)

Cell In[83], line 1

print(1) print(2)

SyntaxError: invalid syntax

In [84]: print(1)

In [85]: print("Dog", end=' [bark]\n'); print("Cat")

Dog [bark]

Cat

In [86]: print("Dog", end=' [bark]\n'). print("Cat")

Dog [bark]

Traceback (most recent call last):

Cell In[86], line 1

print("Dog", end=' [bark]\n'). print("Cat")

AttributeError: 'NoneType' object has no attribute 'print'

In [87]: x

Traceback (most recent call last):

Cell In[87], line 1

NameError: name 'x' is not defined

In [88]: x = 4

In [89]: f"the value of x is {x}"

Out[89]: 'the value of x is 4'

In [90]: print(f"the value of x is {x}")

the value of x is 4

In [91]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

In [92]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 0.0

0.5 0.25

1.0 1.0

1.5 2.25

2.0 4.0

2.5 6.25

In [93]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 0.0

0.5 0.25

1.0 1.0

1.5 2.25

2.0 4.0

2.5 6.25

In [94]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 0.0

0.5 0.125

1.0 1.0

1.5 3.375

2.0 8.0

2.5 15.625

In [95]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 0.0

0.5 0.125

1.0 1.0

1.5 3.375

2.0 8.0

2.5 15.625

In [96]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 0.0

0.5 0.125

1.0 1.0

1.5 3.375

2.0 8.0

2.5 15.625

In [97]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 0.0

0.5 0.25

1.0 1.0

1.5 2.25

2.0 4.0

2.5 6.25

In [98]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 0.0

0.5 0.7071067811865476

1.0 1.0

1.5 1.224744871391589

2.0 1.4142135623730951

2.5 1.5811388300841898

In [99]: import math

In [100]: math.cos(0)

Out[100]: 1.0

In [101]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 1.0

0.5 0.8775825618903728

1.0 0.5403023058681398

1.5 0.0707372016677029

2.0 -0.4161468365471424

2.5 -0.8011436155469337

In [102]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 1.000000e+00

0.5 8.775826e-01

1.0 5.403023e-01

1.5 7.073720e-02

2.0 -4.161468e-01

2.5 -8.011436e-01

In [103]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 1.000000

0.5 0.877583

1.0 0.540302

1.5 0.070737

2.0 -0.416147

2.5 -0.801144

In [104]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 1.000000

0.5 0.877583

1.0 0.540302

1.5 0.070737

2.0 -0.416147

2.5 -0.801144

In [105]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 1.000000

0.5 0.877583

1.0 0.540302

1.5 0.070737

2.0 -0.416147

2.5 -0.801144

In [106]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 1.000000

0.5 0.877583

1.0 0.540302

1.5 0.070737

2.0 -0.416147

2.5 -0.801144

In [107]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 0.000000

0.5 0.479426

1.0 0.841471

1.5 0.997495

2.0 0.909297

2.5 0.598472

In [108]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 1.000000

0.5 1.648721

1.0 2.718282

1.5 4.481689

2.0 7.389056

2.5 12.182494

In [109]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 1.000000

0.5 1.648721

1.0 2.718282

1.5 4.481689

2.0 7.389056

2.5 12.182494

In [110]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 1.000000

0.5 1.648721

1.0 2.718282

1.5 4.481689

2.0 7.389056

2.5 12.182494

In [111]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 1.000000

0.5 1.648721

1.0 2.718282

1.5 4.481689

2.0 7.389056

2.5 12.182494

3.0 20.085537

3.5 33.115452

4.0 54.598150

4.5 90.017131

In [112]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 1.000000

0.5 1.648721

1.0 2.718282

1.5 4.481689

2.0 7.389056

2.5 12.182494

3.0 20.085537

3.5 33.115452

4.0 54.598150

4.5 90.017131

5.0 148.413159

In [113]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 0.000000

0.5 0.250000

1.0 1.000000

1.5 2.250000

2.0 4.000000

2.5 6.250000

In [114]: lambda x: x**2

Out[114]: <function __main__.<lambda>(x)>

In [115]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 0.000000

0.5 0.250000

1.0 1.000000

1.5 2.250000

2.0 4.000000

2.5 6.250000

In [116]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 0.000000

0.5 0.125000

1.0 1.000000

1.5 3.375000

2.0 8.000000

2.5 15.625000

In [117]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 10.000000

0.5 10.125000

1.0 11.000000

1.5 13.375000

2.0 18.000000

2.5 25.625000

In [118]: af = lambda x: x**2

In [119]: type(af)

Out[119]: function

In [120]: af

Out[120]: <function __main__.<lambda>(x)>

In [121]: af(2)

Out[121]: 4

In [122]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 0.000000

0.5 0.250000

1.0 1.000000

1.5 2.250000

2.0 4.000000

2.5 6.250000

In [123]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 0.000000

0.5 0.250000

1.0 1.000000

1.5 2.250000

2.0 4.000000

2.5 6.250000

In [124]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

0.0 0.000000

0.5 0.250000

1.0 1.000000

1.5 2.250000

2.0 4.000000

2.5 6.250000

In [125]: runfile('/Users/py4cs/Desktop/print_x2.py', wdir='/Users/py4cs/Desktop')

Traceback (most recent call last):

File ~/anaconda3/lib/python3.11/site-packages/spyder_kernels/py3compat.py:356 in compat_exec

exec(code, globals, locals)

File ~/Desktop/print_x2.py:43

print_f_table(square)

File ~/Desktop/print_x2.py:35 in print_f_table

y = f(b)

NameError: name 'b' is not defined

In [126]: