How to use this developer tool
- Paste Python code.
- Choose one conversion mode.
- Enter the target Python version.
- Run the conversion and review the safety note.
- Copy or download the converted code.
#132 · Programming Languages Developer Tool
Python Converter
Convert Python formatting conventions and selected syntax patterns directly in the browser. Choose safe whitespace conversions or preview version-sensitive changes such as print statements and f-strings without sending source code to a server.
Developer Input
Source codeversion
Ad space
What this developer tool does
It separates safe formatting conversions from syntax rewrites that may change behavior. Version-sensitive conversions are labeled for manual review.
Detect protected regions → apply selected transform → calculate changed lines → evaluate compatibility → output warnings.
Quote, f-string, and syntax conversions can be semantically unsafe. Preview and test converted code before use.
Example
Input
print "Hello, %s" % name
Output
print(f"Hello, {name}")Tips for better output
- Prefer safe whitespace conversions for bulk files.
- Review escaped quotes after quote conversion.
- Run tests after any syntax conversion.
FAQ
How do I convert Python percent formatting to f-strings?
Choose Percent Formatting to f-string Preview and review each replacement before using it.
How can I convert Python tabs to spaces online?
Choose Tabs to 4 Spaces and run the converter.
How do I change Python code from CRLF to LF?
Choose Line Endings to LF. The content remains unchanged apart from newline characters.
Can I convert Python variable names from camelCase to snake_case?
Yes, the naming conversion scans identifier-like tokens while avoiding quoted strings.
How do I convert Python 2 print statements to Python 3?
Choose Python 2 Print to Python 3 and then test the result under Python 3.
Related developer tools
Conversion safety
| Safe | Tabs and line endings |
|---|---|
| Review | Quotes and identifiers |
| Potentially breaking | Syntax rewrites |
| Output | .py |