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ReplacehelloinHello World, HELLO PYTHONwithMy.Since the replace() function replacement is case-sensitive, how can Python implement string replacement without case sensitivity?
hello
Hello World, HELLO PYTHON
My
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Reference article: Issues related to Python string operations
String case-insensitive replacementstr.replace(old, new[, max])The replacement is case-sensitive. Case-insensitive replacement requires the regular expressionre.sub() with there.IGNORECASEoption.
str.replace(old, new[, max])
re.sub(
re.IGNORECASE
>>> import re >>> reg = re.compile(re.escape('hello'), re.IGNORECASE) >>> reg.sub('My', 'Hello World, HELLO PYTHON') 'My World, My PYTHON'
import re s = 'Hello World, HELLO PYTHON' print re.sub(r'(?i)hello', 'My', s)
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Reference article: Issues related to Python string operations
String case-insensitive replacement
str.replace(old, new[, max])The replacement is case-sensitive. Case-insensitive replacement requires the regular expressionre.sub() with there.IGNORECASEoption.