Python - How To Convert a Character to an Integer and Vice Versa in Python

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This tutorial discusses methods to convert a character to an integer and an integer to a character in Python.

Use chr() to Convert an Integer to a Character in Python

We can use the built-in function chr() to convert an integer to its character representation in Python. The below example illustrates this.

val = 97 chr_val = chr(val) print(chr_val) 

Output:

a 

It will result in an error if you provide an invalid integer value to this. For example:

val = 1231232323 chr_val = chr(val) print(chr_val) 

Output:

--------------------------------------------------------------------------- ValueError                                Traceback (most recent call last) <ipython-input-42-f76a9ed55c90> in <module>       1 val = 1231232323 ----> 2 chr(val)  ValueError: chr() arg not in range(0x110000) 

Therefore, it is always good to put this code in a try...except block to catch the error, if any, and avoid any crash. The below example illustrates this:

val = 1231232323 try:     chr_val = chr(val)     print(chr_val) except Exception as e:     print('Error:', e) 

Output:

Error: chr() arg not in range(0x110000) 

Use ord() to Convert a Character to an Integer in Python

We can use the built-in function ord() to convert a character to an integer in Python. The below example illustrates this.

val = 'a' try:     int_val = ord(val)     print(int_val) except Exception as e:     print('Error:', e) 

Output:

97 

The above method also catches any invalid input and prints out the error instead of crashing the code. For example:

val = 'aa' try:     int_val = ord(val)     print(int_val) except Exception as e:     print('Error:', e) 

Output:

Error: ord() expected a character, but string of length 2 found 

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