python代码运行助手用法 python怎样使用代码运行助手

时间:2021-04-22 爱喝马黛茶的安东尼人气:0

python代码运行助手是能在网页上运行python语言的工具。因为python的运行环境在很多教程里都是用dos的，黑乎乎的界面看的有点简陋，所以出了这python代码运行助手，作为ide。

实际上，python代码运行助手界面只能算及格分，如果要找ide，推荐使用jupyter。jupyter被集成到ANACONDA里，只要安装了anacoda就能使用了。

1、要打开这运行助手首先要下载一个learning.py，如果找不到可以复制如下代码另存为“learning.py”,编辑器用sublime、或者notepad++。

#!/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()

2、再用一个记事本写如下的代码：

@echo off
python learning.py
pause

另存为‘运行.bat'

3、把“运行.bat”和“learning.py”放到同一目录下。

4、双击运行“运行.bat"，之后会弹出黑色的dos窗口，这个窗口不要关闭。

5、输入网址对应的网址和端口，整个过程就完成了。

知识点扩展：

Python在线运行代码助手

#!/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()

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