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Comments on Tips for golfing in Python

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Tips for golfing in Python

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If you have any tips for golfing in Python, add them as answers to this post.

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If you have a loop or if, you can save two or more characters (depending on the current indentation level and the number of statements in the body) by putting it right after the colon:

For example, assume you have this loop with 33 characters:

for x in a:
 do_something_with(x)

Since you've got just one statement, you can delete the newline character and the following indentation space, in order to get 31 characters:

for x in a:do_something_with(x)

If the body has more than one statement, those can be separated with semicolon. For example

if (condition):
 do_something()
 do_more()

becomes

if condition:do_something();do_more()

Thanks to @Moshi for pointing out that it also works with several statements.

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2 comment threads

You can use this trick with more than one statement by using semicolons (2 comments)
General (2 comments)
General
General Sebast1an‭ wrote about 3 years ago

I don't understand why a semicolon is there. It's unnecessary if you placed the next code in a newline or no code succeeds it.

celtschk‭ wrote about 3 years ago

I'm just too used to write C++ code that requires it, so I tend to write them without even noticing. Thanks for catching that.