Python在线运行代码助手
发布时间：2020-12-16 20:29:57 所属栏目：Python 来源：网络整理
导读：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
|
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'<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','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','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','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','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： 复制代码 代码如下: C:UsersmichaelDownloads> 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 （编辑：李大同） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
