How do I split the definition of a long string over multiple lines?

You can split a string over multiple lines by using triple quotes, either ''' or """ .

For example:

Split a string over multiple lines by using triple single-quotations

string = '''This is a long string
that spans multiple lines'''

Or:

Split a string over multiple lines by using triple double-quotations

string = """This is a long string
that spans multiple lines"""

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You can also use the backslash character ( \ ) at the end of each line to achieve a similar effect:

Split a string over multiple lines using the backslash character

string = "This is a long string \
that spans multiple lines"

Note that when using the backslash, there should not be any whitespace or characters after it on the same line.