print(10) # 10
print(4 + 3 + 2 + 1) # 10
print(type(10)) # <class 'int'>10
10
<class 'int'>Data Types
1 Integer (int)
Whole numbers, positive or negative.
print(-3) # -3
print(-5 + 2) # -3
print(type(-3)) # <class 'int'>-3
-3
<class 'int'>2 Float (float)
Decimal numbers, positive or negative.
print(3.14159) # 3.14159
print(type(3.14159)) # <class 'float'>3.14159
<class 'float'>print(-3.14159 * 2) # -6.28318
print(type(-3.14159 * 2)) # <class 'float'>-6.28318
<class 'float'>print(1e-01) # 0.1
print(type(1e-01)) # <class 'float'>0.1
<class 'float'>3 Boolean (bool)
Represents True or False values, often used in conditionals.
print(True) # True
print(type(True)) # <class 'bool'>True
<class 'bool'>print(False) # False
print(type(False)) # <class 'bool'>False
<class 'bool'>4 String (str)
Sequences of Unicode characters.
print("Hello") # Hello
print(type("Hello")) # <class 'str'>Hello
<class 'str'>print('Hello') # Hello
print(type('Hello')) # <class 'str'>Hello
<class 'str'>5 None (None)
Represents the absence of a value.
print(None) # None
print(type(None)) # <class 'NoneType'>None
<class 'NoneType'>Common Errors
Some frequent errors encountered when dealing with Data Types in Python.
print(Tyler)--------------------------------------------------------------------------- NameError Traceback (most recent call last) Cell In[11], line 1 ----> 1 print(Tyler) NameError: name 'Tyler' is not defined
print(int(Tyler))--------------------------------------------------------------------------- NameError Traceback (most recent call last) Cell In[12], line 1 ----> 1 print(int(Tyler)) NameError: name 'Tyler' is not defined
print(5 + '10')--------------------------------------------------------------------------- TypeError Traceback (most recent call last) Cell In[13], line 1 ----> 1 print(5 + '10') TypeError: unsupported operand type(s) for +: 'int' and 'str'