It is important to be specific about what exception you're trying to catch when using a try/except block.
string = "abcd"
try:
string_int = int(string)
print(string_int)
except ValueError:
# Handle the exception
print('Please enter an integer')
Try/Excepts are powerful because if something can fail in a number of different ways, you can specify how you want the program to react in each fail case.
Answer from Nathan Jones on Stack OverflowGeeksforGeeks
geeksforgeeks.org › python › convert-string-to-integer-in-python
Convert String to Int in Python - GeeksforGeeks
If the input string contains non-numeric characters, int() will raise a ValueError. To handle this gracefully, we use a try-except block.
Published: June 15, 2026
Mimo
mimo.org › tutorials › python › how-to-convert-string-to-int-in-python
How to Convert String to Int in Python
Convert numeric strings to integers in Python using int(), clean input, handle commas and spaces, and catch invalid values safely.
Converting String to Int using try/except in Python - Stack Overflow
So I'm pretty stumped on how to convert a string into an int using the try/except function. Does anyone know a simple function on how to do this? I feel like I'm still a little hazy on string and i... More on stackoverflow.com
Safe casting in python - Stack Overflow
The question reveals some miscomprehension of the fundamentals of Python and you will gain more profit obtaining answers after having explained what led you thinking that you need to cast something ... When working in the context of the internet query parameters are represented as strings. More on stackoverflow.com
Add a default option to int() to use if conversion fails - Ideas - Discussions on Python.org
Many times I have found myself writing code to convert strings containing user input, regex matches etc. to other types such as integers. To handle edge cases in which int(x) raises a ValueError, this usually involves having to write code like: x = int(user_input) if user_input else 0 or matches ... More on discuss.python.org
0
October 30, 2020parsing - Python "safe" eval (string to bool/int/float/None/string) - Stack Overflow
I'm making a webapp that does some data processing, so I frequently find myself parsing strings (from an URL or a text file) into Python values. I use a function that is "kind of" a safer version of More on stackoverflow.com
Igmguru
igmguru.com › home › blog › python › convert string to int in python
How to Convert a String Into an Integer in Python
June 23, 2026 - Learn how to convert a Python string to int using the int() function. A Step-by-step guide with examples, and safe methods like try-except and isdigit().
Top answer 1 of 7
150
It is important to be specific about what exception you're trying to catch when using a try/except block.
string = "abcd"
try:
string_int = int(string)
print(string_int)
except ValueError:
# Handle the exception
print('Please enter an integer')
Try/Excepts are powerful because if something can fail in a number of different ways, you can specify how you want the program to react in each fail case.
2 of 7
26
Here it is:
s = "123"
try:
i = int(s)
except ValueError as verr:
pass # do job to handle: s does not contain anything convertible to int
except Exception as ex:
pass # do job to handle: Exception occurred while converting to int
Top answer 1 of 5
84
Think not, but you may implement your own:
def safe_cast(val, to_type, default=None):
try:
return to_type(val)
except (ValueError, TypeError):
return default
safe_cast('tst', int) # will return None
safe_cast('tst', int, 0) # will return 0
2 of 5
55
I do realize that this is an old post, but this might be helpful to some one.
x = int(word) if word.isdigit() else None
Net Informations
net-informations.com › python › pro › int.htm
How to Convert a Python String to int
This method is particularly valuable for securely assessing strings containing Python values from potentially untrusted origins, obviating the requirement for manual parsing. However, it's crucial to acknowledge that ast.literal_eval() is not designed to handle highly intricate expressions, such as those encompassing operators or indexing.
Real Python
realpython.com › convert-python-string-to-int
How to Convert a Python String to int – Real Python
March 18, 2026 - In this example, you meant for the result to be 210, which is the decimal representation of the binary string. Unfortunately, because you didn’t specify that behavior, int() assumed that the string was a decimal integer. One good safeguard for this behavior is to always define your string ...
Fonzi AI
fonzi.ai › blog › convert-string-to-integer
How to Convert a String to an Integer (in Python, JavaScript, & More)
August 12, 2025 - Stoi() ensures that invalid inputs are caught, providing a safer conversion process. String to integer conversion can come with challenges such as non-numeric input, overflow errors, and handling edge cases.
Spark By {Examples}
sparkbyexamples.com › home › python › python convert string to int (integer)
Python Convert String to Int (Integer) - Spark By {Examples}
May 21, 2024 - By using the int() function you can convert the string to int (integer) in Python. Besides int() there are other methods to convert. Converting a string
Python.org
discuss.python.org › ideas
Add a default option to int() to use if conversion fails - Ideas - Discussions on Python.org
October 30, 2020 - Many times I have found myself writing code to convert strings containing user input, regex matches etc. to other types such as integers. To handle edge cases in which int(x) raises a ValueError, this usually involves having to write code like: x = int(user_input) if user_input else 0 or matches = re.match(r'(.*):(\w*)', data) try: y = int(matches.group(0)) except ValueError: y = 1 try: z = int(matches.group(1)) except ValueError: z = 10 What do people think of adding a keyw...
DataCamp
datacamp.com › tutorial › how-to-convert-a-string-into-an-integer-in-python
How to Convert a String Into an Integer in Python | DataCamp
November 24, 2024 - In cases where the string represents a number with a decimal point, converting it to an integer would be inappropriate and result in an error. Instead, you can convert these strings to floats using the float() function in Python.
YouTube
youtube.com › watch
#8 String To Integer In Python Programming - YouTube
🔁 String to Integer in Python Programming | Python for BeginnersWelcome to the eighth episode of our Python Programming series! 🎉In this tutorial, we’ll le...
Published: April 17, 2025
freeCodeCamp
freecodecamp.org › news › python-convert-string-to-int-how-to-cast-a-string-in-python
Python Convert String to Int – How to Cast a String in Python
November 29, 2021 - To convert, or cast, a string to an integer in Python, you use the int() built-in function.
Studyunicorn
studyunicorn.com › blogs › how-to-convert-a-string-to-an-int-in-python
How to Convert a String to an Int in Python: Complete Guide
February 14, 2026 - This conversion is central to activities such as arithmetic manipulation, data checking, reading input data by users or scanning numbers in a file such as CSV. Python is dynamically typed and thus variables may change type during execution, but strings do not implicitly turn into an integer.
Top answer 1 of 3
51
my_input = int(my_input)
There is no shorter way than using the int function (as you mention)
2 of 3
8
Maybe you were hoping for something like my_number = my_input.to_int. But it is not currently possible to do it natively. And funny enough, if you want to extract the integer part from a float-like string, you have to convert to float first, and then to int. Or else you get ValueError: invalid literal for int().
The robust way:
my_input = int(float(my_input))
For example:
>>> nb = "88.8"
>>> int(nb)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: invalid literal for int() with base 10: '88.8'
>>> int(float(nb))
88
AlgoCademy
algocademy.com › blog › string-to-int-in-python-a-comprehensive-guide
String to Int in Python: A Comprehensive Guide – AlgoCademy Blog
Always validate input: Check if the string represents a valid integer before conversion. Use try-except blocks: Handle potential ValueError exceptions to gracefully manage conversion errors. Consider the context: Choose the appropriate base (e.g., decimal, binary, hexadecimal) based on your data source and requirements. Handle edge cases: Account for negative numbers, leading/trailing whitespace, and empty strings. Use type hints: Employ Python’s type hinting system to clarify expected input and output types.
Safe Community
community.safe.com › home › forums › fme form › authoring › string value to integer in python
String Value to integer in Python - FME Community
January 19, 2016 - However, the int function doesn't seem to work on a decimal string but vStartMiles2 = int(float(vStartMiles)) does ... Thanks David. I've filtered out the features with empty strings before the Python caller and it works ok.
Note.nkmk.me
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Convert a String to a Number (int, float) in Python | note.nkmk.me
April 29, 2025 - In Python, you can convert a string (str) to a number using int() for an integer or float() for a floating-point number. Convert a string to int: int() Convert a string to float: float() Convert a bin ...
Top answer 1 of 6
78
If you want a one-liner like you've attempted, go with this:
variable = int(stringToInt) if stringToInt else None
This will assign variable to int(stringToInt) only if stringToInt is not empty AND is "numeric". If, for example stringToInt is 'mystring', a ValueError will be raised. If stringToInt is empty (''), it will assign variable to None.
To avoid ValueErrors, use a try-except:
try:
variable = int(stringToInt)
except ValueError:
variable = None
2 of 6
31
I think this is the clearest way:
variable = int(stringToInt) if stringToInt.isdigit() else None