Is there something string class like stringbuilder in c#?
Thanks
+5
A:
There is no one-to-one correlation. For a really good article please see Efficient String Concatenation in Python:
Building long strings in the Python progamming language can sometimes result in very slow running code. In this article I investigate the computational performance of various string concatenation methods.
Andrew Hare
2010-03-10 05:11:29
Note that this article was written based on Python 2.2. The tests would likely come out somewhat differently in a modern version of Python (CPython usually successfully optimizes concatenation, but you don't want to depend on this in important code) and a generator expression where he uses a list comprehension would be worthy of consideration.
Mike Graham
2010-03-10 06:35:38
A:
Python has several things that fulfill similar purposes:
- One common way to build large strings from pieces is to grow a list of strings and join it when you are done. This is a frequently-used Python idiom.
- To build strings incorporating data with formatting, you would do the formatting separately.
- For insertion and deletion at a character level, you would keep a list of length-one strings. (To make this from a string, you'd call
list(your_string). You could also use aUserString.MutableStringfor this. (c)StringIO.StringIOis useful for things that would otherwise take a file, but less so for general string building.
Mike Graham
2010-03-10 06:21:54