RandomCode/Brython.html at main · GaMaDeCa/RandomCode · GitHub

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<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>Python Runner (Brython)</title>
  <script src="https://cdn.jsdelivr.net/npm/brython@3.11.0/brython.min.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/brython@3.11.0/brython_stdlib.js"></script>
  <style>
    body {
      margin: 0;
      background-color: #000;
      color: #0f0;
      font-family: monospace;
      display: flex;
      flex-direction: column;
      height: 100vh;
    }

    #example-selector {
      width: 100%;
      padding: 10px;
      background-color: #111;
      color: #0f0;
      border: none;
      font-size: 16px;
    }

    #code-area {
      flex: 0 0 auto;
      padding: 10px;
    }

    #code-input {
      width: 100%;
      height: 200px;
      background-color: #111;
      color: #0f0;
      border: none;
      font-size: 16px;
      resize: vertical;
      padding: 10px;
      box-sizing: border-box;
    }

    #buttons {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      padding: 10px;
      justify-content: center;
    }

    #buttons button {
      background-color: #222;
      color: #0f0;
      border: 1px solid #0f0;
      padding: 10px 20px;
      font-size: 16px;
      cursor: pointer;
      border-radius: 5px;
    }

    #buttons button:hover {
      background-color: #0f0;
      color: #000;
    }

    #output {
      flex: 1 1 auto;
      background-color: #000;
      color: #0f0;
      padding: 10px;
      overflow-y: auto;
      white-space: pre-wrap;
      border-top: 1px solid #0f0;
    }
  </style>
</head>
<body onload="brython()">

  <select id="example-selector">
    <option value="">-- Load example code --</option>
    <option value="hello">Hello World</option>
    <option value="loop">Loop Example</option>
    <option value="function">Function Example</option>
    <option value="error">Error Example</option>
    <option value="input">If Statement</option>
  </select>

  <div id="code-area">
    <textarea id="code-input" placeholder="# Write Python code here..."></textarea>
  </div>

  <div id="buttons">
    <button id="run-btn">Run</button>
    <button id="reset-btn">Reset Environment</button>
  </div>

  <div id="output"></div>

  <script type="text/python">
    from browser import document, window
    import sys
    import io
    import traceback

    code_input = document["code-input"]
    output = document["output"]
    run_button = document["run-btn"]
    reset_button = document["reset-btn"]
    example_selector = document["example-selector"]

    LOCAL_STORAGE_KEY = "brython_user_code"

    # Example code options
    examples = {
        "hello": "print(\"Hello from Brython!\")",
        "loop": "for i in range(5):\n    print(\"i =\", i)",
        "function": "def greet(name):\n    print(\"Hello,\", name)\n\ngreet(\"Python\")",
        "error": "print(unknown_variable)",  # Intentional error
        "input": "x = 10\nif x > 5:\n    print(\"x is greater than 5\")"
    }

    # Shared globals dictionary for execution environment
    global_env = {}

    def append_output(text):
        output.textContent += text + "\n"
        output.scrollTop = output.scrollHeight

    def clear_output():
        output.textContent = ""

    def save_code_to_local_storage():
        window.localStorage.setItem(LOCAL_STORAGE_KEY, code_input.value)

    def load_code_from_local_storage():
        saved = window.localStorage.getItem(LOCAL_STORAGE_KEY)
        if saved is not None:
            code_input.value = saved

    def run_code(event):
        clear_output()
        sys.stdout = io.StringIO()
        sys.stderr = sys.stdout  # Capture errors

        try:
            code = code_input.value
            exec(code, global_env)
        except Exception:
            traceback.print_exc()

        result = sys.stdout.getvalue()
        output.textContent = result

        sys.stdout = sys.__stdout__
        sys.stderr = sys.__stderr__

        save_code_to_local_storage()

    def load_example(ev):
        key = example_selector.value
        if key in examples:
            code_input.value = examples[key]
            save_code_to_local_storage()

    def reset_environment(ev):
        global global_env
        global_env = {}  # Reset the execution environment
        append_output("--- Environment reset ---")

    run_button.bind("click", run_code)
    reset_button.bind("click", reset_environment)
    example_selector.bind("change", load_example)

    load_code_from_local_storage()
  </script>
</body>
</html>