Python 2.7: the 'replace' method of the 'string' object deprecated
Question:
My "workmates" just told me that the replace method of the string object was deprecated and will be removed in 3.xx.
Is it true? And if so, how can I replace it (with examples)?
Answers:
The documentation of 3.2 says nothing about that the replace method of the str type should be removed. I also don’t see any reason why someone should do that.
But the replace function in the string module was removed.
An example:
"bla".replace("a", "b")
calls the replace method of the str type.
string.replace("bla", "a", "b")
calls the replace function of the string module.
Maybe this is what your workmates mixed up. Using the string module function is a very, very old way to do this stuff in Python. They are deprecated, beginning with Python 2.0(!). I am not so good in the history of Python, but I guess probably right when they have introduced object-oriented concepts into the language.
As far as I understand those deprecation warnings in http://docs.python.org/library/string.html#deprecated-string-functions, only the functions are deprecated. The methods are not.
E.g., if you use:
s = 'test'
string.replace(s, 'est', '')
you should replace it with
s.replace('est', '')
To do this, you can use this code below:
a = "hello".replace("e", "o")
print(a)
And this likely should be the output:
hollo
My "workmates" just told me that the replace method of the string object was deprecated and will be removed in 3.xx.
Is it true? And if so, how can I replace it (with examples)?
The documentation of 3.2 says nothing about that the replace method of the str type should be removed. I also don’t see any reason why someone should do that.
But the replace function in the string module was removed.
An example:
"bla".replace("a", "b")
calls the replace method of the str type.
string.replace("bla", "a", "b")
calls the replace function of the string module.
Maybe this is what your workmates mixed up. Using the string module function is a very, very old way to do this stuff in Python. They are deprecated, beginning with Python 2.0(!). I am not so good in the history of Python, but I guess probably right when they have introduced object-oriented concepts into the language.
As far as I understand those deprecation warnings in http://docs.python.org/library/string.html#deprecated-string-functions, only the functions are deprecated. The methods are not.
E.g., if you use:
s = 'test'
string.replace(s, 'est', '')
you should replace it with
s.replace('est', '')
To do this, you can use this code below:
a = "hello".replace("e", "o")
print(a)
And this likely should be the output:
hollo