Do I need to pass multiple variable in string concatenation

Question

Can you please explain if I need to pass the variable multiple times for the string concatenation.

For eg.

String1 = "Hello"
String = "Good Morning"    
String2 = String + "%s, %s" % (String1, String1)

My question is, how do I pass String1 just once?

Is there a better way to do it?

If your intended output is "HelloHelloHello" then yes

Sterling Archer
– Sterling Archer

2014-12-17 19:13:02 +00:00
Commented Dec 17, 2014 at 19:13 — Sterling Archer
– Sterling Archer, Commented Dec 17, 2014 at 19:13
Where is the variable String defined?

Kevin
– Kevin

2014-12-17 19:13:07 +00:00
Commented Dec 17, 2014 at 19:13 — Kevin
– Kevin, Commented Dec 17, 2014 at 19:13
@Kevin - Sorry I missed that.

paddu
– paddu

2014-12-17 19:15:52 +00:00
Commented Dec 17, 2014 at 19:15 — paddu
– paddu, Commented Dec 17, 2014 at 19:15

user2555451 · Accepted Answer · 2014-12-17 19:12:49Z

6

If you use the newer str.format method, you can do:

String2 = String + "{0}, {0}".format(String1)

In fact, you should always prefer str.format over % formatting in modern Python. The latter approach is pseudo-deprecated and will most likely be removed from a future version of the language.

answered Dec 17, 2014 at 19:12

user2555451

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2 Comments

Matthias Over a year ago

The best solution would be: String2 = "{0}{1}, {1}".format(String, String1)

paddu Over a year ago

I was trying earlier to accept your answer but for some reasons, SO was not letting me. Now I could do it.

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