{"id":4861,"date":"2024-03-23T06:22:24","date_gmt":"2024-03-23T06:22:24","guid":{"rendered":"https:\/\/sparksupport.com\/blog\/?p=4861"},"modified":"2024-06-12T05:04:43","modified_gmt":"2024-06-12T05:04:43","slug":"ship-with-confidence-protect-your-python-code-with-cython","status":"publish","type":"post","link":"https:\/\/beta.sparksupport.com\/blog\/ship-with-confidence-protect-your-python-code-with-cython\/","title":{"rendered":"Ship with Confidence: Protect Your Python Code with Cython"},"content":{"rendered":"

Distributing Your Python Code as an Executable with Cython<\/b><\/h2>\n

Ever wondered how to keep your Python code private when distributing software?<\/b><\/p>\n

While obfuscation tools like Pyarmor add some protection, they can’t fully prevent someone from deciphering your code. Here’s where Cython comes in.<\/span><\/p>\n

Cython is a compiler that lets you convert Python code into a compiled extension, like a <\/span>.so<\/span> file. This compiled extension can be included with your software and protects your original Python source code.<\/span><\/p>\n

Here’s how to use Cython to create a distributable executable:<\/b><\/p>\n

1. Install Cython:<\/b><\/h3>\n
Bash\r\n\r\npip install cython<\/pre>\n
 2. Convert your Python script:<\/b><\/h3>\n
This file tells Cython which Python files to convert. Create a new file named setup.py with the following content, replacing cube.pyx with your file name:<\/p>\n
Python\r\nfrom setuptools import setup\r\nfrom Cython.Build import cythonize\r\n\r\nsetup(\r\n    ext_modules = cythonize(\"cube.pyx\")\r\n)\r\n<\/pre>\n
4. Build the Cython extension:<\/b><\/b><\/h3>\n
Run the following command in your terminal:<\/p>\n
Bash\r\npython setup.py build_ext --inplace\r\n<\/pre>\n
This command will generate two new files:<\/p>\n
    \n
  • A .c file containing the compiled C code.<\/li>\n
  • A .so file (or .pyd on Windows) containing the compiled extension.<\/li>\n<\/ul>\n
    Compiling the .c file (optional):<\/h4>\n
    If you want a standalone executable, you can compile the generated .c file using a C compiler like GCC. This will create an executable file containing your Python code.<\/p>\n
    Using the compiled extension:<\/h4>\n
    To use the compiled extension in another Python script, simply import it like a regular module. For example:<\/p>\n
    Python\r\nfrom cube import cube\r\nprint(\"9 cubed =\", cube(9))\r\n<\/pre>\n
    Remember:<\/h4>\n
      \n
    • Place the .so file in the same directory as your Python script that uses it.<\/li>\n<\/ul>\n
      By following these steps, you can distribute your Python code as a compiled extension, protecting your source code while still providing a functional program to your clients.<\/p>\n","protected":false},"excerpt":{"rendered":"
      Distributing Your Python Code as an Executable with Cython Ever wondered how to keep your Python code private when distributing software? While obfuscation tools like<\/p>\n","protected":false},"author":1,"featured_media":4978,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4861","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"yoast_head":"\nShip with Confidence: Protect Your Python Code with Cython -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/beta.sparksupport.com\/blog\/ship-with-confidence-protect-your-python-code-with-cython\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ship with Confidence: Protect Your Python Code with Cython -\" \/>\n<meta property=\"og:description\" content=\"Distributing Your Python Code as an Executable with Cython Ever wondered how to keep your Python code private when distributing software? 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