tax(1500)

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
/tmp/ipykernel_9620/757572318.py in <module>
----> 1 tax(1500)

NameError: name 'tax' is not defined

def tax(subtotal):
    return subtotal*0.08875

tax(1500)

133.125

1500*0.08875

133.125

1500+tax(1500)

1633.125

200+1500+tax(1500)

1833.125

def set_a():
    a=10
    print('The value of a:',a)

set_a()

The value of a: 10

a=20
print('initially,the value of a:',a)
set_a()
print('finally,the value of a:',a)

initially,the value of a: 20
The value of a: 10
finally,the value of a: 20

set_a()

The value of a: 10

def scoped(first,second):
    third=second+second-first
    return third
first=10
second=11
third=12
scoped(2,4)

6

first

10

second

11

third

12

l=[7,4,2,6]

for num in l: print(num)

print(num)

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
/tmp/ipykernel_9620/302864193.py in <module>
----> 1 print(num)

NameError: name 'num' is not defined

def mean(sequence):
    for element in sequence:
        total=total+element
    return total/len(sequence)

mean(5)

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
/tmp/ipykernel_9620/952054573.py in <module>
----> 1 mean(5)

/tmp/ipykernel_9620/515362635.py in mean(sequence)
      1 def mean(sequence):
----> 2     for element in sequence:
      3         total=total+element
      4         return total/len(sequence)

TypeError: 'int' object is not iterable

mean(5,6,7)

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
/tmp/ipykernel_9620/45238786.py in <module>
----> 1 mean(5,6,7)

TypeError: mean() takes 1 positional argument but 3 were given

def mean(sequence):
    total=0
    for element in sequence:
        total=total+element
    return total/len(sequence)

mean(5)

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
/tmp/ipykernel_9620/952054573.py in <module>
----> 1 mean(5)

/tmp/ipykernel_9620/1027729532.py in mean(sequence)
      1 def mean(sequence):
      2     total=0
----> 3     for element in sequence:
      4         total=total+element
      5     return total/len(sequence)

TypeError: 'int' object is not iterable

short=[5,5,5,5]

mean(short)

5.0

x=5

type(x)

int

type(5)

int

x='hello world'

type(x)

str

type([1,2,3])

list

'hello'+'world'

'helloworld'

'knock'+'knock'

'knockknock'

a='hello'
b='world'
a+b

'helloworld'

len('hello world')

11

len([1,2,3])

3

len(['hello','world'])

2

len(5)

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
/tmp/ipykernel_9620/4108502181.py in <module>
----> 1 len(5)

TypeError: object of type 'int' has no len()

2+'hello'

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
/tmp/ipykernel_9620/2596768515.py in <module>
----> 1 2+'hello'

TypeError: unsupported operand type(s) for +: 'int' and 'str'

len(str(5))

1

str(2)+'hello'

'2hello'

'2'+'hello'

'2hello'

len('5')

1

volume=[4.0,2.0,3.0,5.5]
result=[]
for element in volume:
    result=result+[element*2]
result

[8.0, 4.0, 6.0, 11.0]

result=[]
result

[]

result=result+[4.0]
result

[4.0]

result=result+4.0
result

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
/tmp/ipykernel_9620/3429417297.py in <module>
----> 1 result=result+4.0
      2 result

TypeError: can only concatenate list (not "float") to list

2+2==4

True

2+2==3

False

2+2==3+1

True

greeting='hello'

greeting=='hi'

False

greeting=='hello'

True

greeting='hi'

greeting=='hi'

True

def secret(word):
    if word=='please':
        return 'Yes!'

secret('hello')

secret('world')

secret('please')

'Yes!'

secret('Please')

def yesno(word):
    if word=='yes':
        return True
    if word=='no':
        return False

yesno('no')

False