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Python在线运行代码助手

时间:2021-07-01 10:21:17 帮助过:2369人阅读

Python代码运行助手可以让你在线输入Python代码,然后通过本机运行的一个Python脚本来执行代码。原理如下:

在网页输入代码:

点击Run按钮,代码被发送到本机正在运行的Python代码运行助手;

Python代码运行助手将代码保存为临时文件,然后调用Python解释器执行代码;

网页显示代码执行结果:

下载

点击右键,目标另存为:learning.py

备用下载地址:learning.py

完整代码:

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

r'''
learning.py

A Python 3 tutorial from http://www.liaoxuefeng.com

Usage:

python3 learning.py
'''

import sys

def check_version():
 v = sys.version_info
 if v.major == 3 and v.minor >= 4:
  return True
 print('Your current python is %d.%d. Please use Python 3.4.' % (v.major, v.minor))
 return False

if not check_version():
 exit(1)

import os, io, json, subprocess, tempfile
from urllib import parse
from wsgiref.simple_server import make_server

EXEC = sys.executable
PORT = 39093
HOST = 'local.liaoxuefeng.com:%d' % PORT
TEMP = tempfile.mkdtemp(suffix='_py', prefix='learn_python_')
INDEX = 0

def main():
 httpd = make_server('127.0.0.1', PORT, application)
 print('Ready for Python code on port %d...' % PORT)
 httpd.serve_forever()

def get_name():
 global INDEX
 INDEX = INDEX + 1
 return 'test_%d' % INDEX

def write_py(name, code):
 fpath = os.path.join(TEMP, '%s.py' % name)
 with open(fpath, 'w', encoding='utf-8') as f:
  f.write(code)
 print('Code wrote to: %s' % fpath)
 return fpath

def decode(s):
 try:
  return s.decode('utf-8')
 except UnicodeDecodeError:
  return s.decode('gbk')

def application(environ, start_response):
 host = environ.get('HTTP_HOST')
 method = environ.get('REQUEST_METHOD')
 path = environ.get('PATH_INFO')
 if method == 'GET' and path == '/':
  start_response('200 OK', [('Content-Type', 'text/html')])
  return [b'Learning Python']
 if method == 'GET' and path == '/env':
  start_response('200 OK', [('Content-Type', 'text/html')])
  L = [b'ENV']
  for k, v in environ.items():
   p = '

%s = %s' % (k, str(v)) L.append(p.encode('utf-8')) L.append(b'') return L if host != HOST or method != 'POST' or path != '/run' or not environ.get('CONTENT_TYPE', '').lower().startswith('application/x-www-form-urlencoded'): start_response('400 Bad Request', [('Content-Type', 'application/json')]) return [b'{"error":"bad_request"}'] s = environ['wsgi.input'].read(int(environ['CONTENT_LENGTH'])) qs = parse.parse_qs(s.decode('utf-8')) if not 'code' in qs: start_response('400 Bad Request', [('Content-Type', 'application/json')]) return [b'{"error":"invalid_params"}'] name = qs['name'][0] if 'name' in qs else get_name() code = qs['code'][0] headers = [('Content-Type', 'application/json')] origin = environ.get('HTTP_ORIGIN', '') if origin.find('.liaoxuefeng.com') == -1: start_response('400 Bad Request', [('Content-Type', 'application/json')]) return [b'{"error":"invalid_origin"}'] headers.append(('Access-Control-Allow-Origin', origin)) start_response('200 OK', headers) r = dict() try: fpath = write_py(name, code) print('Execute: %s %s' % (EXEC, fpath)) r['output'] = decode(subprocess.check_output([EXEC, fpath], stderr=subprocess.STDOUT, timeout=5)) except subprocess.CalledProcessError as e: r = dict(error='Exception', output=decode(e.output)) except subprocess.TimeoutExpired as e: r = dict(error='Timeout', output='执行超时') except subprocess.CalledProcessError as e: r = dict(error='Error', output='执行错误') print('Execute done.') return [json.dumps(r).encode('utf-8')] if __name__ == '__main__': main()

运行

在存放learning.py的目录下运行命令:

代码如下:


C:\Users\michael\Downloads> python learning.py

如果看到Ready for Python code on port 39093...表示运行成功,不要关闭命令行窗口,最小化放到后台运行即可:

试试效果

需要支持HTML5的浏览器:

IE >= 9
Firefox
Chrome
Sarafi

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