在廖雪峰大神的网站下学习了Python，其中有一个提供互动环境的Python脚本--learning.py，报了个错，看了下源文件的代码，安排了一下。

报错信息：

This learning.py is expired. Please download a newer version.

解决方法：

用任意编辑器打开learnin.py源文件，会发现在文件顶部有以下代码：

CERT_EXPIRES = '2018-07-01'

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)

显然，其中CERT_EXPIRES变量声明了一个日期，而在下文中用当前日期与其做了比较，如果当前日期大于CERT_EXPIRES，则会报错：

print('This learning.py is expired. Please download a newer version.')

所以解决方法就很简单：

将CERT_EXPIRES设置的时间比现在大即可，比如

CERT_EXPIRES = '2018-09-01'

源码

#!/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 = '2018-09-01'

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-----

MIIEpAIBAAKCAQEA5b3zv77bzN8JShoXkVjXFG9NK342wnfgye+NmuSoRfCMPrwL

GToJZiwxokXGyVY8obmQA69WUgonpuotp0AhDK8bOvykKuX+7MyE36sh9TUVOiIw

6D3ODG2E1K5IIEytfGhuPmeJe3OapnL/lJytlLhonu63VEf+jpYh6I/gXD4hZu1N

tx4rOeJLl3qSFgRgX4oBZtO0d4aHop/XW5XcdaeuJxIW5qw7PxXqlch4h9TUs0Og

udko380DrO9pmTuVXr2rtk6Jy96wDAVwsAiSX85FF59Q3QmjDzM+fx8a/vyWkxOw

9dT0DzfZBJ9g/tPk13ir14U1vPpDMO1lIXjKZQIDAQABAoIBAEp+FwT7W8XII/j1

EOM+DS9BD6KkoBjaSfbwR9gLgEx9PNwymN6rJNUOS2G0gkpSPgKqannnZnPfew/y

Kq9qacz1Ej1EIe8O+GPLxOHJWY9qkOFyqK0FLUR2VnWntRdUBYSrT+PIKpnu2BxU

eW60hswMJ1AxUxxu46lUINaJoFQH7ANHzpCxXFiWDiVK8VCCFS3MaJfqz945zLdg

orHMty+gCcaWRX9wanZ5k9RmX2qzqLAAhlnKIfmItpel8HTppOk1taVDopUgPGd+

8IG7IANbRlykkeBvlA5soSk7RNM2+crHcdCz5ehoSjMHsY3e99EPoPjKQmb3Ak0p

zgtjPpkCgYEA8p+eULq0OM2anLQeOqQe2QNxkTuriOI2qyobOnCYAJRFlxCLJ8K8

OIf+srIJUYzJsGmPSqo8iizM5V9bmBRihYnPwePUJS0af8G2vdeJARoAFBo4LZNi

YBN3Gi6hKo8hDgOPQ6D2a25NXYua4z5HlOb8PU6JhX1/6O6yv4ScZh8CgYEA8miG

QxHbx3a7Zfy3/QCQrEwmbp9k49ex/DZvh50N5MqG9h6lb6+ct+qUT7HkvcXUrBxL

6HP7aLVUTTvo9z10sBh1Kt1UQP/57JbKQNMCYKUbMxZH59XdFPzVwkbyDE7Z29tf

8QEMnk9CM6HbvbQDSvOZ04IsfSEstMEPKqVmFvsCgYEAsOSborRdTcTp4zKXj521

N/gAxyjAKe70eNscOwF4cYOpMTjInFaosHbGxjZ0ANcq/coYxRFVTlDXmqxptXm3

UzFlHjIjrG80EM2FlOgeZYU1ZXKwXtpEMVQ/1AEHVGZCbVs/CsnCoBUtpvRwGxp/

ShsW8QPf1EnqBkRyYpwnA3UCgYA5nrLbWnFddlGRKoMpdmrtKaSxAt5ecjTyeJYG

LETTL3jpI9u7MokUBoR+dRCkM1QcHRXGCVunRgLl4Om9azRDb2zaZYXTdYUYwbcN

tZqJEnXmrNMmvmUwyfCdn3OFjXCnm/uwM8mmD7zyvPSYoSNvO3xDFFwy2iHgTUun

nW0o5QKBgQCF/mCu/z1+CsddcHu1RYjnG08uVk0ErjTLB5Qy0YI2NWVE2zdV9fi9

MWn7S+oEcmjaMdXdF0W/MDyB8TLUSdsXGHPl/vRizK3vhDQGxQ+y3ru8GEVq8BjX

YePMDifbgHDXrCeBeb7TypefD/ScxdVJdI9sPSno20AehzDkXcAssQ==

-----END RSA PRIVATE KEY-----

-----BEGIN CERTIFICATE-----

MIIFzTCCBLWgAwIBAgIQB594sjWBo6qup5zlKa2F7zANBgkqhkiG9w0BAQsFADCB

lzELMAkGA1UEBhMCQ04xJTAjBgNVBAoTHFRydXN0QXNpYSBUZWNobm9sb2dpZXMs

IEluYy4xHzAdBgNVBAsTFlN5bWFudGVjIFRydXN0IE5ldHdvcmsxHTAbBgNVBAsT

FERvbWFpbiBWYWxpZGF0ZWQgU1NMMSEwHwYDVQQDExhUcnVzdEFzaWEgRFYgU1NM

IENBIC0gRzUwHhcNMTcwNzA1MDAwMDAwWhcNMTgwNzA1MjM1OTU5WjAgMR4wHAYD

VQQDDBVsb2NhbC5saWFveHVlZmVuZy5jb20wggEiMA0GCSqGSIb3DQEBAQUAA4IB

DwAwggEKAoIBAQDlvfO/vtvM3wlKGheRWNcUb00rfjbCd+DJ742a5KhF8Iw+vAsZ

OglmLDGiRcbJVjyhuZADr1ZSCiem6i2nQCEMrxs6/KQq5f7szITfqyH1NRU6IjDo

Pc4MbYTUrkggTK18aG4+Z4l7c5qmcv+UnK2UuGie7rdUR/6OliHoj+BcPiFm7U23

His54kuXepIWBGBfigFm07R3hoein9dbldx1p64nEhbmrDs/FeqVyHiH1NSzQ6C5

2SjfzQOs72mZO5Vevau2TonL3rAMBXCwCJJfzkUXn1DdCaMPMz5/Hxr+/JaTE7D1

1PQPN9kEn2D+0+TXeKvXhTW8+kMw7WUheMplAgMBAAGjggKJMIIChTAgBgNVHREE

GTAXghVsb2NhbC5saWFveHVlZmVuZy5jb20wCQYDVR0TBAIwADBhBgNVHSAEWjBY

MFYGBmeBDAECATBMMCMGCCsGAQUFBwIBFhdodHRwczovL2Quc3ltY2IuY29tL2Nw

czAlBggrBgEFBQcCAjAZDBdodHRwczovL2Quc3ltY2IuY29tL3JwYTAfBgNVHSME

GDAWgBRtWMd/GufhPy6mjJc1Qrv00zisPzAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0l

BBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMIGbBggrBgEFBQcBAQSBjjCBizA8Bggr

BgEFBQcwAYYwaHR0cDovL3RydXN0YXNpYTItb2NzcC5kaWdpdGFsY2VydHZhbGlk

YXRpb24uY29tMEsGCCsGAQUFBzAChj9odHRwOi8vdHJ1c3Rhc2lhMi1haWEuZGln

aXRhbGNlcnR2YWxpZGF0aW9uLmNvbS90cnVzdGFzaWFnNS5jcnQwggEDBgorBgEE

AdZ5AgQCBIH0BIHxAO8AdQDd6x0reg1PpiCLga2BaHB+Lo6dAdVciI09EcTNtuy+

zAAAAV0QuhtTAAAEAwBGMEQCIERpJLcXX4eFEW02eZMh6EYFW236foQrCsakOgQQ

NW96AiBCE6/7vrUxWKf964i4D9z2NA0TCuXm9giVgQaFju0XXQB2AKS5CZC0GFgU

h7sTosxncAo8NZgE+RvfuON3zQ7IDdwQAAABXRC6G5MAAAQDAEcwRQIhAK4GeiTU

OQcjGFvLAugOMIEKCEuiJsEu0t+f1ql5Edn2AiAUqqLMw87IkjMnJsbEUGsHkng0

KL6MLDC3BaHVcH6HsjANBgkqhkiG9w0BAQsFAAOCAQEAYDU2DSBh/63brAW/VWlQ

PQIZzWhji6209MG5hg/RN3Zo9uoz2GodNWwOSkvcFVUz9oBExLfcfhZAsBz26dgs

abWstAje63oduhXU9MR1LDFfG6GLit0Pou0yiS0hfg3jpxpYCIo97QAe8bkuMdRQ

7V09yKKo44M+iXbkIUivnM1ckYJHU9xQ3y8/q/DQajUmVIEPRzmyz6B3tP4WA11T

X5T89OK6osvLcYSJXvxOeR3J8Ohxdwi+PRX4BCgXgTseOj+biwJuCo9z7uwvCoXG

fdilj1tXNa5eDtSRplqbFB+kPGkP/NZ5b1+huarDqE/aeNpmREqONhxi49KB1/9u

1w==

-----END CERTIFICATE-----

-----BEGIN CERTIFICATE-----

MIIFZTCCBE2gAwIBAgIQOhAOfxCeGsWcxf/2QNXkQjANBgkqhkiG9w0BAQsFADCB

yjELMAkGA1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMR8wHQYDVQQL

ExZWZXJpU2lnbiBUcnVzdCBOZXR3b3JrMTowOAYDVQQLEzEoYykgMjAwNiBWZXJp

U2lnbiwgSW5jLiAtIEZvciBhdXRob3JpemVkIHVzZSBvbmx5MUUwQwYDVQQDEzxW

ZXJpU2lnbiBDbGFzcyAzIFB1YmxpYyBQcmltYXJ5IENlcnRpZmljYXRpb24gQXV0

aG9yaXR5IC0gRzUwHhcNMTYwODExMDAwMDAwWhcNMjYwODEwMjM1OTU5WjCBlzEL

MAkGA1UEBhMCQ04xJTAjBgNVBAoTHFRydXN0QXNpYSBUZWNobm9sb2dpZXMsIElu

Yy4xHzAdBgNVBAsTFlN5bWFudGVjIFRydXN0IE5ldHdvcmsxHTAbBgNVBAsTFERv

bWFpbiBWYWxpZGF0ZWQgU1NMMSEwHwYDVQQDExhUcnVzdEFzaWEgRFYgU1NMIENB

IC0gRzUwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC39aSJZG/97x3a

6Qmuc9+MubagegRAVUmFYHTYTs8IKB2pM7wXN7W8mekdZaEgUjDFxvRBK/DhTb7U

8ONLsKKdT86aOhzbz2noCTn9wPWnGwkg+/4YKg/dPQQdV9tMsSu0cwqInWHxSAkm

AI1hYFC9D7Sf7Hp/5cRcD+dK454YMRzNOGLQnCVI8JEqrz6o9SOvQNTqTcfqt6DC

0UlXG+MPD1eNPjlzf1Vwaab+VSTgySoC+Ikbq2VsdykeOiGXW/OIiASH7+2LcR05

PmQ7GEOlM8yzoVojFpM8sHz+WxI05ZOPri5+vX3HhHHjWr5432G0dVmgohnZvlVZ

oy8XrlbpAgMBAAGjggF2MIIBcjASBgNVHRMBAf8ECDAGAQH/AgEAMC8GA1UdHwQo

MCYwJKAioCCGHmh0dHA6Ly9zLnN5bWNiLmNvbS9wY2EzLWc1LmNybDAOBgNVHQ8B

Af8EBAMCAQYwLgYIKwYBBQUHAQEEIjAgMB4GCCsGAQUFBzABhhJodHRwOi8vcy5z

eW1jZC5jb20wYQYDVR0gBFowWDBWBgZngQwBAgEwTDAjBggrBgEFBQcCARYXaHR0

cHM6Ly9kLnN5bWNiLmNvbS9jcHMwJQYIKwYBBQUHAgIwGRoXaHR0cHM6Ly9kLnN5

bWNiLmNvbS9ycGEwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMCkGA1Ud

EQQiMCCkHjAcMRowGAYDVQQDExFTeW1hbnRlY1BLSS0yLTYwMTAdBgNVHQ4EFgQU

bVjHfxrn4T8upoyXNUK79NM4rD8wHwYDVR0jBBgwFoAUf9Nlp8Ld7LvwMAnzQzn6

Aq8zMTMwDQYJKoZIhvcNAQELBQADggEBABUphhBbeG7scE3EveIN0dOjXPgwgQi8

I2ZAKYm6DawoGz1lEJVdvFmkyMbP973X80b7mKmn0nNbe1kjA4M0O0hHaMM1ZaEv

7e9vHEAoGyysMO6HzPWYMkyNxcCV7Nos2Uv4RvLDpQHh7P4Kt6fUU13ipcynrtQD

1lFUM0yoTzwwFsPu3Pk+94hL58ErqwqJQwxoHMgLIQeMVHeNKcWFy1bddSbIbCWU

Zs6cMxhrra062ZCpDCbxyEaFNGAtYQMqNz55Z/14XgSUONZ/cJTns6QKhpcgTOwB

fnNzRnk+aWreP7osKhXlz4zs+llP7goBDKFOMMtoEXx3YjJCKgpqmBU=

-----END CERTIFICATE-----

'''

# start main at last ##########################################################

if __name__ == '__main__':

    main()

   

   

   

友情链接:

个人网站       技术博客        简书主页

learning.py报错的更多相关文章

  1. create_project.py报错问题,建议用回python2.7

    d:\DevTool\cocos2d-x-2.2.2\cocos2d-x-2.2.2\tools\project-creator\create_project.py 报错 d:\DevTool\coc ...

  2. Web.py报错：OSError: No socket could be created -- (('0.0.0.0', 8080):

    web.py报错 Python代码: import web urls = ( '/(.*)', 'hello' ) app = web.application(urls, globals()) cla ...

  3. Django中修改DATABASES后，执行python manage.py ****报错！UnicodeEncodeError

    Django中修改DATABASES后,执行python manage.py ****报错!UnicodeEncodeError: 'latin-1' codec can't encode chara ...

  4. django调用py报错 django.core.exceptions.ImproperlyConfigured: Requested setting DEFAULT_INDEX_TABLESPACE, but settings are not configured.

    完整报错信息如下 django.core.exceptions.ImproperlyConfigured: Requested setting DEFAULT_INDEX_TABLESPACE, bu ...

  5. 重构drf项目后的manage.py报错的问题

    Python3.6 用Django连接mysql一直报错django.core.exceptions.ImproperlyConfigured: mysqlclient 1.3.3 or newer ...

  6. 运行ride.py报错，闪退

    报错信息如下: F:\Python3.8\Scripts>python ride.py<class 'robotide.preferences.configobj.UnreprError' ...

  7. django中执行py报错Requested setting DEFAULT_INDEX_TABLESPACE, but settings are not configured

    https://blog.csdn.net/heybob/article/details/49684261 django代码下面直接run的时候报错: django.core.exceptions.I ...

  8. 执行join_paired_ends.py报错Cannot find fastq-join

    通过 conda 安装 qiime 1后,在执行join_paired_ends.py时报错: burrito.util.ApplicationNotFoundError: Cannot find f ...

  9. 针对PIL中ImageDraw.py报错的解决方案

    linux mint 13开始就发现这个问题了,一直不知道怎么解决,今天突然发现了解决方案,来分享给大家 下面是修改对比,自己根据修改,这个是系统文件,需要root权限,路径/usr/lib/pyth ...

随机推荐

  1. MyEclipse web jsp 如何调试

    MyEclipse如何调试 | 浏览:882 | 更新:2014-03-13 17:38 1 2 3 4 5 分步阅读 当程序写好之后,如何调试呢? 我们在MyEclipse中jav添加断点,运行de ...

  2. ROS会议 ROSCon 2017

    ----ROSCon2012-2017----来源链接:https://roscon.ros.org           近三年ROSCon(2015-2017)都会将会议视频录像和文档公开~以下为机 ...

  3. C++17中那些值得关注的特性（上）

    C++17标准在2017上半年已经讨论确定,正在形成ISO标准文档,今年晚些时候会正式发布.本文将介绍最新标准中值得开发者关注的新特新和基本用法. 总的来说C++17相比C++11的新特性来说新特性不 ...

  4. leisure time

    终于把论文翻译完了,天哪,现在感觉解脱一般. 这些天看电视,玩游戏,也不止学了写什么,现在调整了下心情,重新确定下目标吧. 最近很想学Python和Qt,哎,技术永远都是学不完了,理解操作系统和组成原 ...

  5. ubuntu 通过ssh上传/下载服务器文件

    1.用ssh登录远程ubuntu主机 (主机ip为:1.2.3.4;用户名:username) ssh username@1.2.3.4 2.从远程ubuntu主机copy文件/文件夹到本地(scp) ...

  6. [UOJ213][UNR #1]争夺圣杯

    uoj description 一个长为\(n\)的序列,给定一个参数\(m\),求所有长度为\(m\)的区间的最大值之和. 对于所有的\(m\in[1,n]\)你都需要分别求出答案然后异或起来. \ ...

  7. bzoj 4570: [Scoi2016]妖怪 凸包

    题目大意: http://www.lydsy.com/JudgeOnline/problem.php?id=4570 题解 我们知道如果一个怪物要取到攻击力的最大值,那么一定是把防御力都转化了 所以我 ...

  8. Python 缓存机制与 functools.lru_cache(zz)

    refer to: http://kuanghy.github.io/2016/04/20/python-cache

  9. idyll 开源生成交互式web的标记语言试用

    说明 Idyll is an open-source markup language and toolkit for producing interactive web pages You give ...

  10. Windows 10 上的 Git 如何清除密码？ Git Credential Manager for Windows

    Windows 10 上的 Git 如何清除密码? 因为一台新的电脑是 Windows 10 在第一次使用 Git 要求输入密码时把密码给输错了. 之前提交都是说 Token 错了,不再出现提示密码. ...