Fix The Syntaxerror: Invalid Token In Python

Python is a popular and flexible programming language that provides developers with a strong toolkit for creating a wide range of applications. Even seasoned programmers, though, occasionally run into problems when developing; one such issue is SyntaxError: Invalid Token. The unexpected characters or symbols that the interpreter encountered cause this error, which stops Python scripts from executing.

What is Syntaxerror: Invalid Token In Python?

The “SyntaxError: Invalid Token” occurs when the Python interpreter encounters an unexpected character or token that is not part of the valid Python syntax. This can happen due to various reasons, such as using unsupported characters, incorrect encoding, or issues with the file format.

Syntax :

Error Syntaxerror: Invalid Token In Python

Why does Syntaxerror: Invalid Token In Python Occur?

below, are the reasons for occurring Syntaxerror: Invalid Token In Python.

• Missing Comma
• Mismatched Parentheses
• Incorrect use of Special Characters

Missing Comma

The below code has a syntax error in the tuple assignment. It should be corrected to `coordinates = (3, 4)` by adding a comma between the numerical values for proper tuple initialization.

Python3

coordinates = (3 4)

Output

Hangup (SIGHUP)
  File "Solution.py", line 1
    coordinates = (3 4)
                     ^
SyntaxError: invalid syntax

Mismatched Parentheses

The below code has a syntax error due to the mismatched square brackets.

Python3

print("Welcome to Python World!"]

Output

Hangup (SIGHUP)
  File "Solution.py", line 1
    print("Welcome to Python World!"]
                                    ^
SyntaxError: invalid syntax

Incorrect use of Special Characters

below code has a syntax error due to the extra forward slash.

Python3

print('Hello  World'/)

Output

Hangup (SIGHUP)
  File "Solution.py", line 1
    print('Hello  World'/)
                         ^
SyntaxError: invalid syntax

Approach to Solve Syntaxerror: Invalid Token In Python

below are the approahces to solve Syntaxerror: Invalid Token In Python

• Correct Typo Mistake
• Matched Parentheses
• Correct use of Special Characters

Correct Typo Mistake

In the below example, the solution to the SyntaxError involves adding the Missing Comma in a Tuple:

Python3

coordinates = (3, 4)

Matched Parentheses

In below code is syntactically correct, printing the string “Welcome to Python World!” to the console without any syntax errors.

Python3

print("Welcome to Python World!")

Output

Welcome to Python World!

Correct use of Special Characters

Now Below code is syntactically correct, printing the string “Hello / World” with the backslash used as an escape character to include a forward slash in the output.

Python3

print('Hello \/ World')

Output

Hello \/ World

Conclusion

In conclusion, addressing the “SyntaxError: Invalid Token” in Python is crucial for maintaining error-free code. By carefully identifying and rectifying unexpected characters, ensuring correct encoding, and resolving syntax issues, developers can ensure the smooth execution of their Python scripts. Attention to detail and adherence to Python’s syntax rules are essential for preventing and resolving this common error.