How to convert one data type to another data type.
Converting one datatype to another datatype is known as “Data type convertion” or “Type casting”
Note: Follow “Pro tip” and “Must try” given in the documentation.
In this example we come accross some Data types convertion like.
- Integer
- Float
- Boolean
- String
Converting tips
Syntax: variable_name = key(variable_name)
Ex:
- b = int(a)
- b = float(a)
- b = bool(a)
- b = str(a)
keywords like int(), float(), bool(), str() are used to convert the value in the variable to required type.
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Converting “INTEGER” to other types.
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- Converting “integer” to “float”
a = 10
b = float(a)
print(b) #output: 10.0
print(type(b)) #output: <class ‘float’>
2. Converting “integer” to “string”
a = 10
b = str(a)
print(b) #output: 10
print(type(b)) #output: <class ‘str’>
3. Converting “integer” to “boolean”
a =10
b = bool(a)
print(b) #output: True
print(type(b)) #output: <class ‘bool’>
*****Pro tip: The number other than ‘0’ always return true, number can be either negative or positive.
*****Must try: a = 0, a = -1
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Converting “FLOAT” to other types.
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- Converting “float” to int
a = 10.56
b = int(a)
print(b) #output:10
print(type(b)) #output: <class ‘int’>
2. Converting “float” to str
a = 10.56
b = str(a)
print(b) #output: 10.56
print(type(b)) #output: <class ‘str’>
3. Converting “float” to boolean
a = 10.56
b = bool(a)
print(b) #output:True
print(type(b)) #output:<class ‘bool’>
***** Pro tip: Number other than ‘0’ are always true
****Must try: a = 0.0
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Converting “BOOLEAN” to other types.
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- Converting boolean to integer
a = True
b = int(a)
print(b) #output: 1
print(type(b)) #output: <class ‘int’>
2. Converting boolean to string
a = False
b = str(a)
print(b) #output:False
print(type(b)) #output:<class ‘str’>
3. Converting boolean to float
a = True
b = float(a)
print(b) #output:1.0
print(type(b)) #output:<class ‘float’>
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Convert “STRING” to other types
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- Converting string to integer
a = ‘10a’
b = int(a)
print(b) # output: ValueError: invalid literal for int() with base 10: ‘10a’
*****Pro tip: While converting string to int, the value should always be in digits.
*****Must try: a = ‘10’, this should give you output without error.
2. Convert string to float
a = “hello”
b = float(a)
print(b) # output:ValueError: could not convert string to float: ‘hello’
*****Pro tip: While converting string to float, the value should always be in digits.
*****Must try: a= ‘10.56’, this should give you output without error.
3. Converting string to boolean
a = ‘0’
name = bool(a)
print(name) #output: True
print(type(name)) #output:<class ‘bool’>
*****Pro tip: Any value in single quotes gives True.
*****Must try: a = ‘’, This should give you False.
*********************** Thank you ***********************
