python如何使用代碼運(yùn)行助手
python代碼運(yùn)行助手是能在網(wǎng)頁(yè)上運(yùn)行python語(yǔ)言的工具。因?yàn)閜ython的運(yùn)行環(huán)境在很多教程里都是用dos的，黑乎乎的界面看的有點(diǎn)簡(jiǎn)陋，所以出了這python代碼運(yùn)行助手，作為ide。
實(shí)際上，python代碼運(yùn)行助手界面只能算及格分，如果要找ide，推薦使用jupyter。jupyter被集成到ANACONDA里，只要安裝了anacoda就能使用了。
1、要打開(kāi)這運(yùn)行助手首先要下載一個(gè)learning.py，如果找不到可以復(fù)制如下代碼另存為“l(fā)earning.py”,編輯器用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, tempfilefrom urllib import parsefrom wsgiref.simple_server import make_server EXEC = sys.executablePORT = 39093HOST = ’local.liaoxuefeng.com:%d’ % PORTTEMP = 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=’執(zhí)行超時(shí)’) except subprocess.CalledProcessError as e:r = dict(error=’Error’, output=’執(zhí)行錯(cuò)誤’) print(’Execute done.’) return [json.dumps(r).encode(’utf-8’)] if __name__ == ’__main__’: main()
2、再用一個(gè)記事本寫(xiě)如下的代碼：
@echo offpython learning.pypause
另存為‘運(yùn)行.bat’
3、把“運(yùn)行.bat”和“l(fā)earning.py”放到同一目錄下。
4、雙擊運(yùn)行“運(yùn)行.bat'，之后會(huì)彈出黑色的dos窗口，這個(gè)窗口不要關(guān)閉。
5、輸入網(wǎng)址對(duì)應(yīng)的網(wǎng)址和端口，整個(gè)過(guò)程就完成了。
知識(shí)點(diǎn)擴(kuò)展：
Python在線運(yùn)行代碼助手
#!/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,tempfilefrom urllib import parsefrom wsgiref.simple_server import make_server EXEC = sys.executablePORT = 39093HOST = ’local.liaoxuefeng.com:%d’ % PORTTEMP = 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=’執(zhí)行超時(shí)’) except subprocess.CalledProcessError as e: r = dict(error=’Error’,output=’執(zhí)行錯(cuò)誤’) print(’Execute done.’) return [json.dumps(r).encode(’utf-8’)] if __name__ == ’__main__’: main()
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