The syntax of isalnum()
is:
string.isalnum()
isalnum() Parameters
The isalnum()
doesn't take any parameters.
Return Value from isalnum()
The isalnum()
returns:
- True if all characters in the string are alphanumeric
- False if at least one character is not alphanumeric
Example 1: Working of isalnum()
name = "M234onica"
print(name.isalnum())
# contains whitespace
name = "M3onica Gell22er "
print(name.isalnum())
name = "Mo3nicaGell22er"
print(name.isalnum())
name = "133"
print(name.isalnum())
Output
True False True True
Example 1: Working of isalnum()
name = "M0n1caG3ll3r"
if name.isalnum() == True:
print("All characters of string (name) are alphanumeric.")
else:
print("All characters are not alphanumeric.")
Output
All characters of string (name) are alphanumeric.
Checkout these related String methods as well: