Python: Unexpected Character After Line Continuation Character

What is the “Unexpected Character After Line Continuation Character” Error?

The “Unexpected Character After Line Continuation Character” error occurs when Python encounters a character that is not allowed after a line continuation character. In Python, a line continuation character is used to split a long line of code into multiple lines for better readability. The line continuation character is represented by a backslash (). For example:

long_line = "This is a very long line of code that \
            needs to be split into multiple lines."

In this example, the backslash at the end of the first line indicates that the line continues on the next line. However, if a character that is not allowed after a line continuation character is encountered, Python will raise the “Unexpected Character After Line Continuation Character” error.

Why Does the “Unexpected Character After Line Continuation Character” Error Occur?

The “Unexpected Character After Line Continuation Character” error occurs when a character that is not allowed after a line continuation character is encountered. In Python, there are certain rules regarding what characters can follow a line continuation character. Some examples of characters that are not allowed after a line continuation character include:

  • Another backslash ()
  • A single quote (‘)
  • A double quote (“)
  • A hash symbol (#)

These characters have special meanings in Python and cannot be used immediately after a line continuation character. If any of these characters are encountered, Python will raise the “Unexpected Character After Line Continuation Character” error.

How to Resolve the “Unexpected Character After Line Continuation Character” Error

To resolve the “Unexpected Character After Line Continuation Character” error, you need to ensure that you are not using any characters that are not allowed after a line continuation character. Here are some steps you can take to resolve this error:

1. Check for Illegal Characters

The first step is to check your code for any characters that are not allowed after a line continuation character. Look for backslashes (), single quotes (‘), double quotes (“), or hash symbols (#) immediately after a line continuation character. If you find any, you will need to modify your code to remove or replace these characters.

2. Use Parentheses

If you need to use a character that is not allowed after a line continuation character, you can enclose the entire expression in parentheses. This tells Python that the expression continues on the next line and allows you to use characters that are normally not allowed after a line continuation character. For example:

long_line = ("This is a very long line of code that "
             "needs to be split into multiple lines.")

In this example, the parentheses allow the expression to continue on the next line, even though it contains characters that are not allowed after a line continuation character.

3. Use Triple Quotes

Another way to split a long line of code into multiple lines without encountering the “Unexpected Character After Line Continuation Character” error is to use triple quotes. Triple quotes allow you to define a multiline string in Python. For example:

long_line = """This is a very long line of code that
               needs to be split into multiple lines."""

In this example, the triple quotes allow the string to span multiple lines without the need for a line continuation character.

4. Check for Indentation Errors

Sometimes, the “Unexpected Character After Line Continuation Character” error can be caused by an indentation error. Python relies on proper indentation to determine the structure of the code. If there is an indentation error, it can lead to unexpected characters after line continuation characters. Make sure that your code is properly indented and that there are no stray characters or spaces that could cause this error.

I hope this blog post has helped you understand the “Unexpected Character After Line Continuation Character” error and how to resolve it. Happy coding!