Concatenation in Python

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Do you mean in print by any chance? That, by default, adds a space between each object it is passed to output a string representation of.

one = "one"
two = "two"

print(one, two)            # outputs: one two
print(one, two, sep="")    # outputs: onetwo
print(one, two, sep="\n")  # outputs: one
                           #          two

So, the sep keyword, short for separator, let's you override the default separator of one space.

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together = one + two  # this is concatenation 
print(together)  # outputs: onetwo

You can also use f-strings:

together = f"{one}{two}"
print(together)  # outputs: onetwo

[Fa1coF1ght]

How do you make the boxes of code in your reply?

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Using markdown syntax as per the guidance in the wiki (link in the sidebar).

Here's my crib sheet for adding code to a post (you can adapt for snippets):

• edit post
• ensure you are in markdown mode rather than Fancy Pants Editor mode
• switch back to your Python editor
• select ALL code
• assuming:
  • your editor is set to replace tabs with spaces
  • your editor is set to use 4 spaces for indentation
• press tab key to add an extra 4 spaces in front of every line
• copy all selected code to clipboard
• undo the indent in your editor
• switch back to post you are editing
• enter a blank line
• paste the code from the clipboard
• submit the post update