Python在线编辑器
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from flask import Flask, render_template, request, jsonify
import sys
from io import StringIO
import contextlib
import subprocess
import importlib
import threading
import time
import ast
import re
app = Flask(__name__)
RESTRICTED_PACKAGES = {
'tkinter': '抱歉，在线编译器不支持 tkinter，因为它需要图形界面环境。请在本地运行需要GUI的代码。',
'tk': '抱歉，在线编译器不支持 tk/tkinter，因为它需要图形界面环境。请在本地运行需要GUI的代码。',
'pygame': 'pygame将被转换为Web版本运行' # 不再限制pygame，而是转换它
}
def convert_tkinter_to_web(code):
"""将tkinter代码转换为Web等效实现"""
# 解析Python代码
tree = ast.parse(code)
# 提取窗口属性
window_props = {
'title': 'Python GUI',
'width': '700',
'height': '500',
'buttons': [],
'labels': [],
'entries': [],
'layout': []
}
# 用于存储函数定义
functions = {}
# 首先收集所有函数定义
for node in ast.walk(tree):
if isinstance(node, ast.FunctionDef):
functions[node.name] = ast.unparse(node)
# 分析代码中的tkinter组件
for node in ast.walk(tree):
if isinstance(node, ast.Assign):
if isinstance(node.value, ast.Call):
# 提取窗口标题
if hasattr(node.value.func, 'attr') and node.value.func.attr == 'Tk':
for subnode in ast.walk(tree):
if isinstance(subnode, ast.Call) and hasattr(subnode.func, 'attr'):
if subnode.func.attr == 'title' and len(subnode.args) > 0:
window_props['title'] = ast.literal_eval(subnode.args[0])
elif subnode.func.attr == 'geometry' and len(subnode.args) > 0:
geom = ast.literal_eval(subnode.args[0])
match = re.match(r'(\d+)x(\d+)', geom)
if match:
window_props['width'] = match.group(1)
window_props['height'] = match.group(2)
# 提取按钮
elif hasattr(node.value.func, 'attr') and node.value.func.attr == 'Button':
button = {'text': 'Button', 'command': None}
for kw in node.value.keywords:
if kw.arg == 'text':
button['text'] = ast.literal_eval(kw.value)
elif kw.arg == 'command':
# 处理不同类型的command
if isinstance(kw.value, ast.Name):
# 简单的函数名
button['command'] = kw.value.id
elif isinstance(kw.value, ast.Lambda):
# Lambda表达式
button['command'] = f"lambda_{len(window_props['buttons'])}"
functions[button['command']] = ast.unparse(kw.value)
else:
# 其他情况，尝试转换为字符串
try:
button['command'] = ast.unparse(kw.value)
except:
button['command'] = 'unknown_command'
window_props['buttons'].append(button)
# 提取标签
elif hasattr(node.value.func, 'attr') and node.value.func.attr == 'Label':
label = {'text': ''}
for kw in node.value.keywords:
if kw.arg == 'text':
try:
label['text'] = ast.literal_eval(kw.value)
except:
# 如果不是字面量，尝试直接转换为字符串
label['text'] = ast.unparse(kw.value)
window_props['labels'].append(label)
# 提取输入框
elif hasattr(node.value.func, 'attr') and node.value.func.attr == 'Entry':
try:
entry_id = node.targets[0].id
except:
entry_id = f"entry_{len(window_props['entries'])}"
window_props['entries'].append({'id': entry_id})
# 生成Web等效代码
web_code = f"""
<!DOCTYPE html>
<div class="tk-window" style="width: {window_props['width']}px; height: {window_props['height']}px;">
<div class="tk-title-bar">{window_props['title']}</div>
<div class="tk-content">
"""
# 添加标签
for label in window_props['labels']:
web_code += f' <div class="tk-label">{label["text"]}</div>\n'
# 添加输入框
for entry in window_props['entries']:
web_code += f' <input type="text" class="tk-entry" id="{entry["id"]}">\n'
# 添加按钮
for button in window_props['buttons']:
command = button['command'] if button['command'] else ''
web_code += f' <button class="tk-button" onclick="tkButtonClick(\'{command}\')">{button["text"]}</button>\n'
web_code += """ </div>
</div>
<script>
window.pythonFunctions = {
"""
# 添加Python函数定义
for func_name, func_code in functions.items():
web_code += f" '{func_name}': {func_code},\n"
web_code += """};
</script>
"""
return web_code
def convert_pygame_to_web(code):
"""将pygame代码转换为Web Canvas实现"""
web_code = """
<canvas id="pygame-canvas" style="border: 1px solid #000;"></canvas>
<script>
const canvas = document.getElementById('pygame-canvas');
const ctx = canvas.getContext('2d');
149. // 设置画布大小
canvas.width = 800;
canvas.height = 600;
153. // 模拟 pygame 的基本功能
const pygame = {
display: {
set_mode: (size) => {
canvas.width = size[0];
canvas.height = size[1];
return canvas;
},
update: () => {
// Canvas 自动更新
},
flip: () => {
// Canvas 自动更新
}
},
draw: {
rect: (surface, color, rect) => {
ctx.fillStyle = `rgb(${color[0]},${color[1]},${color[2]})`;
ctx.fillRect(rect[0], rect[1], rect[2], rect[3]);
},
circle: (surface, color, pos, radius) => {
ctx.beginPath();
ctx.fillStyle = `rgb(${color[0]},${color[1]},${color[2]})`;
ctx.arc(pos[0], pos[1], radius, 0, Math.PI * 2);
ctx.fill();
}
},
event: {
get: () => [], // 简化的事件处理
pump: () => {}
},
init: () => {},
quit: () => {},
time: {
Clock: function() {
return {
tick: (fps) => 1000/fps
};
}
}
};
195. // 转换后的Python代码
function runGame() {
try {
// 这里将插入转换后的游戏代码
%PYTHON_CODE%
} catch (error) {
console.error('Game error:', error);
}
}
205. // 启动游戏循环
runGame();
</script>
"""
# 处理 Python 代码
try:
tree = ast.parse(code)
# 转换 Python 代码为 JavaScript
js_code = convert_pygame_code_to_js(tree)
web_code = web_code.replace('%PYTHON_CODE%', js_code)
return web_code
except Exception as e:
return f"<div class='error'>转换错误: {str(e)}</div>"
def convert_pygame_code_to_js(tree):
"""将 Python AST 转换为 JavaScript 代码"""
js_code = []
for node in ast.walk(tree):
if isinstance(node, ast.Import):
continue # 跳过导入语句
elif isinstance(node, ast.Assign):
# 转换赋值语句
if hasattr(node.value, 'func') and isinstance(node.value.func, ast.Attribute):
if node.value.func.attr == 'set_mode':
js_code.append(f"const screen = pygame.display.set_mode([{node.value.args[0].elts[0].n}, {node.value.args[0].elts[1].n}]);")
elif isinstance(node, ast.While):
# 转换游戏主循环
js_code.append("function gameLoop() {")
# ... 处理循环体
js_code.append(" requestAnimationFrame(gameLoop);")
js_code.append("}")
js_code.append("gameLoop();")
return "\n".join(js_code)
def install_package(package):
"""自动安装缺失的包"""
# 检查是否是受限制的包
if package.lower() in RESTRICTED_PACKAGES:
raise ImportError(RESTRICTED_PACKAGES[package.lower()])
try:
importlib.import_module(package)
except ImportError:
try:
# 尝试使用 pip 安装包
subprocess.check_call([sys.executable, "-m", "pip", "install", package])
except subprocess.CalledProcessError as e:
raise Exception(f"安装包 {package} 失败: {str(e)}")
def timeout_handler():
"""强制终止超时的代码执行"""
raise TimeoutError("代码执行超时（最大执行时间：5秒）")
@app.route('/')
def index():
return render_template('index.html')
@app.route('/execute', methods=['POST'])
def execute_code():
code = request.json.get('code', '')
try:
# 检测是否包含pygame代码
if 'pygame' in code:
web_code = convert_pygame_to_web(code)
return jsonify({
'status': 'success',
'output': '',
'gui': web_code
})
# 检测是否包含tkinter代码
elif 'tkinter' in code or 'tk' in code:
web_code = convert_tkinter_to_web(code)
return jsonify({
'status': 'success',
'output': '',
'gui': web_code
})
# 非GUI代码正常执行
output_buffer = StringIO()
with contextlib.redirect_stdout(output_buffer):
exec(code, globals(), {})
output = output_buffer.getvalue()
return jsonify({
'status': 'success',
'output': output if output else '程序执行完成，没有输出'
})
except Exception as e:
return jsonify({
'status': 'error',
'output': f'错误: {str(e)}'
})
if __name__ == '__main__':
app.run(debug=True) 全部评论 (0)
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