标签：mcu cow LLC python解释器 book xen you join run
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：
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：
点击右键，目标另存为：learning.py
备用下载地址：learning.py
在存放learning.py的目录下运行命令：
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：
┌────────────────────────────────────────────────────────┐
│Command Prompt - □ x │
├────────────────────────────────────────────────────────┤
│Microsoft Windows [Version 10.0.0] │
│(c) 2015 Microsoft Corporation. All rights reserved. │
│ │
│C:\Users\michael\Downloads> python learning.py │
│Ready for Python code on port 39093... │
│Press Ctrl + C to exit... │
│ │
│ │
│ │
│ │
│ │
└────────────────────────────────────────────────────────┘
需要支持HTML5的浏览器：
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：
print(‘Hello, world‘)
#!/usr/bin/env python3 # -*- coding: utf-8 -*- r‘‘‘ learning.py A Python 3 tutorial from https://www.liaoxuefeng.com Usage: python3 learning.py ‘‘‘ # check ####################################################################### import sys from datetime import datetime CERT_EXPIRES = ‘2019-07-07‘ def check_version(): v = sys.version_info if v.major == 3 and v.minor >= 5: return print(‘Your current python is %d.%d. Please use Python 3.6.‘ % (v.major, v.minor)) exit(1) def check_cert(): today = datetime.now().strftime(‘%Y-%m-%d‘) if today >= CERT_EXPIRES: print(‘This learning.py is expired. Please download a newer version.‘) exit(1) check_version() check_cert() # start server ################################################################ import os, io, json, subprocess, tempfile, ssl from urllib import parse from http.server import HTTPServer, BaseHTTPRequestHandler, SimpleHTTPRequestHandler EXEC = sys.executable PORT = 39093 TEMP = tempfile.mkdtemp(suffix=‘_py‘, prefix=‘learn_python_‘) HTML_INDEX = r‘‘‘ <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> ‘‘‘ class LearningHTTPRequestHandler(BaseHTTPRequestHandler): def do_GET(self): self.close_connection = True if self.path != ‘/‘: return self.send_error(404) self._sendHttpHeader(‘text/html‘) self._sendHttpBody(HTML_INDEX) def do_POST(self): self.close_connection = True if self.path != ‘/run‘: return self.send_error(400) print(‘Prepare code...‘) body = self.rfile.read(int(self.headers[‘Content-length‘])) qs = parse.parse_qs(body.decode(‘utf-8‘)) if not ‘code‘ in qs: return self.send_error(400) code = qs[‘code‘][0] r = dict() try: fpath = write_py(get_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.‘) self._sendHttpHeader() self._sendHttpBody(r) def _sendHttpHeader(self, contentType=‘application/json‘): origin = self.headers[‘Origin‘] or ‘https://www.liaoxuefeng.com‘ self.send_response(200) self.send_header(‘Content-Type‘, contentType) self.send_header(‘Access-Control-Allow-Origin‘, origin) self.send_header(‘Access-Control-Allow-Methods‘, ‘GET,POST‘) self.send_header(‘Access-Control-Max-Age‘, ‘86400‘) self.end_headers() def _sendHttpBody(self, data): body = b‘‘ if isinstance(data, bytes): body = data elif isinstance(data, str): body = data.encode(‘utf-8‘, errors=‘ignore‘) else: body = json.dumps(data).encode(‘utf-8‘, errors=‘ignore‘) self.wfile.write(body) def main(): certfile = write_cert() httpd = HTTPServer((‘127.0.0.1‘, PORT), LearningHTTPRequestHandler) httpd.socket = ssl.wrap_socket(httpd.socket, certfile=certfile, server_side=True) print(‘Ready for Python code on port %d...‘ % PORT) print(‘Press Ctrl + C to exit...‘) httpd.serve_forever() # functions ################################################################### INDEX = 0 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‘) # certificate ################################################################# def write_cert(): fpath = os.path.join(TEMP, ‘local.liaoxuefeng.com.pem‘) with open(fpath, ‘w‘, encoding=‘utf-8‘) as f: f.write(CERT_DATA) return fpath CERT_DATA = r‘‘‘ -----BEGIN RSA PRIVATE KEY----- MIIEpAIBAAKCAQEArNs0nkOrt8Bq5latEhaUU9GB6cHwTcuzWaNPtIBEnREJPyp2 S2YqceCH2r6jjdoO+WUH44jteY4G1gz5qnOGrMDum7d5yZxr0XnAMzKNNvmQ5R+z iOvHSYdk9BVBpx0V3zOW/a97zsJCA/1B+qyyQfWSy6LtbWTgoQ3LWYdQJ4AjL4jd KcBmsGhs/K+xM8E9xssV6E4Swn6IoUVfLBQzqgRz10ST9cLxhOR7k/0QJcESeCMu q7NMJgdR6A74/AOys0jzCugDf8RxJns0M+CJ+91krTdn1l0T2Wy4vRjQvAw6Xtdg 0mKEvbpxl8LhgcQQwEl3FkjqNqfW0EM2Eb8lHQIDAQABAoIBAD/e35p7NsA3AUkL TfgZD8XI7FALsVeNpT/B8Hmpy7Cd0uTcM8m4foaFiK1zM8v+fvn4MuoIdncr26rM MJSjC2haAdDYAtBUVCKa8kH4s+VUYg3HoPc+5+xrcwodsJynSqWm0mv6o6zKaso+ klql5Vgp/YvxL/n0BGx+RF1Yem2ddja7flzrbpgaqEbu78OEvBpXQniQRQ3u2ifS Xl+Nyi4HKfxT58CThs8HHHHmuMX/570bA/C44aHZli/tHz5icnSwTHfdy8SlNZIt 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-----BEGIN CERTIFICATE----- MIIFlzCCBH+gAwIBAgIQDnY5H0NC4bAIvIdkO1PbfDANBgkqhkiG9w0BAQsFADBy MQswCQYDVQQGEwJDTjElMCMGA1UEChMcVHJ1c3RBc2lhIFRlY2hub2xvZ2llcywg SW5jLjEdMBsGA1UECxMURG9tYWluIFZhbGlkYXRlZCBTU0wxHTAbBgNVBAMTFFRy dXN0QXNpYSBUTFMgUlNBIENBMB4XDTE4MDcwODAwMDAwMFoXDTE5MDcwODEyMDAw MFowIDEeMBwGA1UEAxMVbG9jYWwubGlhb3h1ZWZlbmcuY29tMIIBIjANBgkqhkiG 9w0BAQEFAAOCAQ8AMIIBCgKCAQEArNs0nkOrt8Bq5latEhaUU9GB6cHwTcuzWaNP tIBEnREJPyp2S2YqceCH2r6jjdoO+WUH44jteY4G1gz5qnOGrMDum7d5yZxr0XnA MzKNNvmQ5R+ziOvHSYdk9BVBpx0V3zOW/a97zsJCA/1B+qyyQfWSy6LtbWTgoQ3L WYdQJ4AjL4jdKcBmsGhs/K+xM8E9xssV6E4Swn6IoUVfLBQzqgRz10ST9cLxhOR7 k/0QJcESeCMuq7NMJgdR6A74/AOys0jzCugDf8RxJns0M+CJ+91krTdn1l0T2Wy4 vRjQvAw6Xtdg0mKEvbpxl8LhgcQQwEl3FkjqNqfW0EM2Eb8lHQIDAQABo4ICeTCC AnUwHwYDVR0jBBgwFoAUf9OZ86BHDjEAVlYijrfMnt3KAYowHQYDVR0OBBYEFD0U bMsvpjwYAld0A+0MK3wA9cynMCAGA1UdEQQZMBeCFWxvY2FsLmxpYW94dWVmZW5n LmNvbTAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUF BwMCMEwGA1UdIARFMEMwNwYJYIZIAYb9bAECMCowKAYIKwYBBQUHAgEWHGh0dHBz Oi8vd3d3LmRpZ2ljZXJ0LmNvbS9DUFMwCAYGZ4EMAQIBMIGBBggrBgEFBQcBAQR1 MHMwJQYIKwYBBQUHMAGGGWh0dHA6Ly9vY3NwMi5kaWdpY2VydC5jb20wSgYIKwYB BQUHMAKGPmh0dHA6Ly9jYWNlcnRzLmRpZ2l0YWxjZXJ0dmFsaWRhdGlvbi5jb20v VHJ1c3RBc2lhVExTUlNBQ0EuY3J0MAkGA1UdEwQCMAAwggEDBgorBgEEAdZ5AgQC BIH0BIHxAO8AdQC72d+8H4pxtZOUI5eqkntHOFeVCqtS6BqQlmQ2jh7RhQAAAWR4 Q3wGAAAEAwBGMEQCICpbOL7rKNzMYP8a+HwjVFhQKROAnlQ3Ig2l5RCJz4zMAiA1 Lgzf7TUfpvEyU/yqsHNDfzuTrtVA56pPJa4xa9/Q6gB2AId1v+dZfPiMQ5lfvfNu /1aNR1Y2/0q1YMG06v9eoIMPAAABZHhDe8YAAAQDAEcwRQIgYuPTsE8JwnVMmN0Q Feq4u5tyO5/nMoGstlouXLwbvbECIQC9zVOzfr+7SmWEES1NMRel++nZhFFQ0pmT LjhCQPBd2jANBgkqhkiG9w0BAQsFAAOCAQEAIkbLq1OsPZlkBmVNvFWQ6lD9SMc2 +tuaqPHF2rECQfL8EprUF9KZLP1ye2dUvZodbbB1JcgBPNcz3NX5yTi3CIiNcf/B qPk5o726hS2Vdyk3rhkNiezNI03UHohHkQ2U4PK4iOSZUgXABjlqyuq6KgoQ00JM LZXvOnpMPjK3jeiZK46TvPP4FlOfnyx5C1gJBUzbIEMGb9f2jwGklRKyrREJ9Dqq 9C/8q7mEL2+q8COLrX6QQb268+FRm5l0YpRwVF+ciq2jsUO3UX3cJf5SRjq3gvcn cRROlQJP6aKj8AWyU44RStiJzqzPkFbVQGhrmZ9dtiupZLeNZQLlWAVYlA== -----END CERTIFICATE----- -----BEGIN CERTIFICATE----- MIIErjCCA5agAwIBAgIQBYAmfwbylVM0jhwYWl7uLjANBgkqhkiG9w0BAQsFADBh MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3 d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBD QTAeFw0xNzEyMDgxMjI4MjZaFw0yNzEyMDgxMjI4MjZaMHIxCzAJBgNVBAYTAkNO MSUwIwYDVQQKExxUcnVzdEFzaWEgVGVjaG5vbG9naWVzLCBJbmMuMR0wGwYDVQQL ExREb21haW4gVmFsaWRhdGVkIFNTTDEdMBsGA1UEAxMUVHJ1c3RBc2lhIFRMUyBS U0EgQ0EwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCgWa9X+ph+wAm8 Yh1Fk1MjKbQ5QwBOOKVaZR/OfCh+F6f93u7vZHGcUU/lvVGgUQnbzJhR1UV2epJa e+m7cxnXIKdD0/VS9btAgwJszGFvwoqXeaCqFoP71wPmXjjUwLT70+qvX4hdyYfO JcjeTz5QKtg8zQwxaK9x4JT9CoOmoVdVhEBAiD3DwR5fFgOHDwwGxdJWVBvktnoA zjdTLXDdbSVC5jZ0u8oq9BiTDv7jAlsB5F8aZgvSZDOQeFrwaOTbKWSEInEhnchK ZTD1dz6aBlk1xGEI5PZWAnVAba/ofH33ktymaTDsE6xRDnW97pDkimCRak6CEbfe 3dXw6OV5AgMBAAGjggFPMIIBSzAdBgNVHQ4EFgQUf9OZ86BHDjEAVlYijrfMnt3K 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标签：mcu cow LLC python解释器 book xen you join run
原文地址：https://www.cnblogs.com/AgainstTheWind/p/9858414.html
