a = 1928
print(a)

1928

b = 'blablabla'
print(b)

blablabla

c = 3.14
print(c)

3.14

d = ['blabla', 'bliblibli', 
     'blobloblo']
print(d)

['blabla', 'bliblibli', 
 'blobloblo']

a = 1928
print(a)
print(type(a))

1928
<class 'int'>

b = 'blablabla'
print(b)
print(type(b))

blablabla
<class 'str'>

c = 3.14
print(c + 1)
print(type(c))

4.14
<class 'float'>

d = ['blabla', 'bliblibli', 
     'blobloblo']
print(d+1)
print(type(d))

['blabla', 'bliblibli', 
 'blobloblo']
<class 'list'>

a = 1928
print(a+1)
print(type(a))

1929
<class 'int'>

b = 'blablabla'
print(b+1)
print(type(b))

TypeError: can only concatenate str (not "int") to str
<class 'str'>

c = 3.14
print(c+1)
print(type(c))

4.14
<class 'float'>

d = ['blabla', 'bliblibli', 
     'blobloblo']
print(d+1)
print(type(d))

TypeError: can only concatenate list (not "int") to list
<class 'list'>

a = 1928
print(a * 3)
print(type(a))

5784
<class 'int'>

b = 'blablabla'
print(b * 3)
print(type(b))

'blablablablablablablablabla'
<class 'str'>

c = 3.14
print(c * 3)

9.42
<class 'float'>

d = ['blabla', 'bliblibli', 
     'blobloblo']
print(d * 3)

['blabla', 'bliblibli', 'blobloblo', 
 'blabla', 'bliblibli', 'blobloblo', 
 'blabla', 'bliblibli', 'blobloblo']
<class 'list'>

lijst = ['fiets', 'auto', 'step']
print(lijst[0])
print(lijst[2.0])

fiets
Traceback (most recent call last):
  File "main.py", line 3, in <module>
    print(lijst[2.0])
TypeError: list indices must be integers or slices, not float

import turtle
pen = turtle.Turtle()

pen.forward('100')

Traceback (most recent call last):
  File "main.py", line 4, in <module>
    pen.forward('100')
  File "/nix/store/2vm88xw7513h9pyjyafw32cps51b0ia1-python3-3.8.12/lib/python3.8/turtle.py", line 1638, in forward
    self._go(distance)
  File "/nix/store/2vm88xw7513h9pyjyafw32cps51b0ia1-python3-3.8.12/lib/python3.8/turtle.py", line 1605, in _go
    ende = self._position + self._orient * distance
  File "/nix/store/2vm88xw7513h9pyjyafw32cps51b0ia1-python3-3.8.12/lib/python3.8/turtle.py", line 257, in __mul__
    return Vec2D(self[0]*other, self[1]*other)
TypeError: can't multiply sequence by non-int of type 'float'

lijst = ['kaas', 'worst', 'aardappel']
lijst.remove('kaas')
print(lijst)

woord = 'het gaat goed'
woord.remove('goed')
print(woord)

['worst', 'aardappel']
Traceback (most recent call last):
  File "main.py", line 6, in <module>
    woord.remove('goed')
AttributeError: 'str' object has no attribute 'remove'

import turtle
pen = turtle.Turtle()

afstand = 100
hoek = 35.9
for i in range(25):
  pen.forward(afstand)
  pen.left(hoek)