int_string = input("What is the initial string? ")
int_string = int_string.lower()
How do I make the input case insensitive
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Mudassir Hasan
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user2044600
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2Python? If so, add tag - also, explain "what doesn't work". – Mar 14 '13 at 02:38
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yes python, not case insensitive – user2044600 Mar 14 '13 at 02:39
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1What is "not case insensitive"? Case sensitivity applies *only* when comparing - and there is not comparisons in the code provided. – Mar 14 '13 at 02:41
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I'm trying to make whatever the user inputs case insensitive – user2044600 Mar 14 '13 at 02:42
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1@pst: What do you mean? `str.lower` works fine, and `str.lowercase` doesn't exist. That documentation is for the `string` module, not the `str` type. – David Robinson Mar 14 '13 at 03:06
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insensitive means "not aware of others' feeling"... – Dark Leviathan Apr 13 '14 at 04:22
2 Answers
4
class CaseInsensitiveStr(str):
def __eq__(self, other):
return str.__eq__(self.lower(), other.lower())
def __ne__(self, other):
return str.__ne__(self.lower(), other.lower())
def __lt__(self, other):
return str.__lt__(self.lower(), other.lower())
def __gt__(self, other):
return str.__gt__(self.lower(), other.lower())
def __le__(self, other):
return str.__le__(self.lower(), other.lower())
def __ge__(self, other):
return str.__ge__(self.lower(), other.lower())
int_string = CaseInsensitiveStr(input("What is the initial string? "))
If you don't like all the repetitive code, you can utilise total_ordering to fill in some of the methods like this.
from functools import total_ordering
@total_ordering
class CaseInsensitiveMixin(object):
def __eq__(self, other):
return str.__eq__(self.lower(), other.lower())
def __lt__(self, other):
return str.__lt__(self.lower(), other.lower())
class CaseInsensitiveStr(CaseInsensitiveMixin, str):
pass
Testcases:
s = CaseInsensitiveStr("Foo")
assert s == "foo"
assert s == "FOO"
assert s > "bar"
assert s > "BAR"
assert s < "ZAB"
assert s < "ZAB"
John La Rooy
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Problem is due to input() function as stated here
This function does not catch user errors. If the input is not syntactically valid, a
SyntaxErrorwill be raised. Other exceptions may be raised if there is an error during evaluation.Consider using the
raw_input()function for general input from users.
So simply use raw_input() and the everything works fine
