How to fix SyntaxError: invalid syntax due to mixing string prefixes like ur... in Python

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We're excited to share with you our newest video, "How to solve SyntaxError: invalid syntax due to mixing string prefixes like ur'' which is not valid in Python 3.x. Use only u'' or r'' separately. in Python". 🎥 This series is meticulously designed to arm you with knowledge 🧠 and skills 🛠️ to overcome frequent coding challenges.

Today, we will decipher 🔎 and resolve a common error faced by Python coders: the bit hard to solve SyntaxError: invalid syntax due to mixing string prefixes like ur'' which is not valid in Python 3.x. Use only u'' or r'' separately.. Here is a snapshot of the code of the video:

Troubling Scenario: ❗️

print(ur'Hello, world!')

Unwanted Result: 🚫
SyntaxError: invalid syntax due to mixing string prefixes like ur'' which is not valid in Python 3.x. Use only u'' or r'' separately.

Effective Resolution: ✔️

print(r'Hello, world!')

Desired Output: 🏁
Hello, world!

In this detailed walkthrough, we will illuminate 💡 the underlying cause of this error, and offer a comprehensive explanation: Code1 mixes 'u' for Unicode and 'r' for a raw string, which isn't allowed in Python 3. Correct by using them separately, like `print(u'Hello, world!')` for Unicode or `print(r'Hello, world!')` for raw. 🎯

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