How to Eliminate Whitespaces in Python's sys.argv Output

How to Eliminate Whitespaces in Python's sys.argv Output

Discover the solution to remove unwanted `whitespaces` when printing command-line arguments using Python. --- This video is based on the question https://stackoverflow.com/q/65410231/ asked by the user 'PutBere' ( https://stackoverflow.com/u/12215012/ ) and on the answer https://stackoverflow.com/a/65410349/ provided by the user 'Jarvis' ( https://stackoverflow.com/u/4806357/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: How do I I get rid of the whitespaces before and after sys.argv when printing? Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- How to Eliminate Whitespaces in Python's sys.argv Output When working with command-line arguments in Python, you may encounter an awkward situation where your output contains unwanted whitespaces. In this guide, we will address this common issue encountered by many Python developers and show you how to remove those pesky whitespaces when printing your command-line arguments using the sys.argv module. The Problem: Unwanted Whitespaces Imagine you have a simple Python script named test.py, which is intended to print the second command-line argument provided when running the script. Here’s the original code snippet you've been working with: [[See Video to Reveal this Text or Code Snippet]] When executing this command in your terminal: [[See Video to Reveal this Text or Code Snippet]] You might see an output like this: [[See Video to Reveal this Text or Code Snippet]] Notice the extra whitespaces before and after the string "hello"? This can be frustrating, especially if you want clean and precise outputs. The Cause of the Issue The source of the extra whitespaces in the output stems from the way you are constructing your print statement. When using commas in the print function, Python adds a space between each argument it outputs. Thus, it inadvertently introduces the spaces you're trying to eliminate. The Solution: Modify Your Print Statement To get rid of these unwanted whitespaces, you can modify your print statement to use string concatenation instead of commas to join your text and arguments. Here’s the revised code: [[See Video to Reveal this Text or Code Snippet]] Explanation of the Fix String Concatenation: By using the + operator to concatenate strings, you have more control over the formatting. This method allows you to directly include the values from sys.argv without adding any unintended spaces. Formatted Output: The revised code now produces a clean output without any unwanted spaces: After applying the fix and running the command again, you will see: [[See Video to Reveal this Text or Code Snippet]] Conclusion By simply changing the way you print your command-line arguments in Python, you can effortlessly eliminate unwanted whitespace. This small but effective adjustment ensures that your outputs are clean and free from formatting issues. If you've been facing this same issue, we hope this guide provides clarity and a straightforward solution. Happy coding!