Dec 14, 2010 · When you concatenate strings using the + operator, Python will call the __add__ method on the string on the left side passing the right side string as a parameter. – Addie Commented Dec 5, 2015 at 20:10

The speed can be contrasted with the fastest method for Python 2, which is + concatenation on my computer; and that takes 0.203 µs with 8-bit strings, and 0.259 µs if the strings are all Unicode.

While the two answers are correct (use " ".join()), your problem (besides very ugly python code) is this: Your strings end in "\r", which is a carriage return. Everything is fine, but when you print to the console, "\r" will make printing continue from the start of the same line, hence overwrite what was written on that line so far.

Jan 27, 2017 · Welcome to StackOverflow. Good novice question -- you satisfied all the guidelines: show what you're trying to accomplish, show what you've tried, ask a specific question. +1 BTW, the terminology for "combining" two strings in this manner is "concatenation" (which is derived from Latin for "chain" as in "chain together"). –

Aug 29, 2012 · But on 2.4 it isn't anymore (or at least Python 2.4.7), so the recommendation to use append/join became outdated in 2008, when Python 2.3 stopped being updated, and you should have stopped using it. :-) (Update: Turns out when I did the testing more carefully that using + and += is faster for two strings on

Mar 8, 2011 · For simplicity when speed doesn't matter, you can't beat the ease of c=a+b.If speed does matter (because you're making a large number of successive concatenations, for example), str.join() can be a little more efficient (code at ideone).

Simply just add a space between the two strings: a = "abcd" b = "xyz" c = a + " " + b # note the extra space concatenated with the other two print c this will give you. abcd xyz You can use a function such as .join(), but for something so short, that would seem almost counter-intuitive (and IMO "overkill"). I.e., first create a list with the ...

Jan 23, 2018 · I got the task to alternately combine the letters of two strings with the same length. For example: Inputstring 1: "acegi" Inputstring 2: "bdfhj" Outputstring: "abcdefghij" And I got the following Problem when I run my code. Traceback (most recent call last): File "...", line 14, in <module> x =x+f TypeError: must be str, not int

Jan 13, 2023 · Simply! '{} {}'.format(item1, item2) # the most prefereable or '%s %s' % (item1, item2) or if it is just print ...

You can load both json strings into Python Dictionaries and then combine. This will only work if there are unique keys in each json string. import json a = json.loads(jsonStringA) b = json.loads(jsonStringB) c = dict(a.items() + b.items()) # or c = dict(a, **b)