Python在线运行代码助手_Python

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：

Python在线运行代码助手

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：

Python在线运行代码助手

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：

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									#!/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'<html><head><title>Learning Python</title></head><body><form method="post" action="/run"><textarea name="code" style="width:90%;height: 600px"></textarea><p><button type="submit">Run</button></p></form></body></html>']

									 if method == 'GET' and path == '/env':

									  start_response('200 OK', [('Content-Type', 'text/html')])

									  L = [b'<html><head><title>ENV</title></head><body>']

									  for k, v in environ.items():

									   p = '<p>%s = %s' % (k, str(v))

									   L.append(p.encode('utf-8'))

									  L.append(b'</html>')

									  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()