michaelliao / learn-python3 Goto Github PK
View Code? Open in Web Editor NEWLearn Python 3 Sample Code
License: GNU General Public License v2.0
Learn Python 3 Sample Code
License: GNU General Public License v2.0
在登陆 廖雪峰官方网站 https://www.liaoxuefeng.com/auth/signin 时只能使用微博登陆,这比较尴尬。不经常玩微博,也不想注册微博账号,希望可以其它方式登陆,如QQ号码登陆,微信登陆,或者本网站注册账号登陆可否?
queue is imported while Queue is used, when you try get result from queue for 11 times the error will be threw.
进行TCP编程 sever和client简单通信。
运行程序一直:
ConnectionResetError: [WinError 10054] 远程主机强迫关闭了一个现有的连接。
请问怎么解决?
谢谢
ModuleNotFoundError: No module named 'ConfigParser'
Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/jv/wm0988950n9ggzpj52kfkn3c0000gn/T/pycharm-packaging/MySQL-python/
个人爱好,刚刚开始学习编程。。。。
想把汉诺塔每一步前面加上行动序号
def mov(n,a,b,c,count):
if n==2:
print("step %d :%s-->%s" % (count,a,b))
count=count+1
print("step %d :%s-->%s" % (count,a, c))
count = count + 1
print("step %d :%s-->%s" % (count,b, c))
count = count + 1
return count
elif n>2:
count=mov(n-1,a,c,b,count)
print("step %d :%s-->%s" % (count,a,c))
count = count +1
count=mov(n-1,b,a,c,count)
return count
------------------------------------------分割线------------------------------------
from Hannoi import mov
count=1
mov(10,"A","B","C",count)
------------------------------------------分割线------------------------------------
试了一下,貌似可以运行,求大神改进,谢谢赐教!
Py
is it possible to convert language into English
Operation result:b'-Err Syntax error
Cool learning
async_wget2.py的内容竟然跟async_hello2.py 一模一样~
Leaning python
pop3可以正常下载邮件,代码运行正常,但是执行完解析邮件的代码没有任何反应,没有报错,然而也没有任何输出,一脸懵逼,这是神马情况?
Hello , Can use this repository in my own project
Traceback (most recent call last):
File "task_master.py", line 22, in
manager.start()
File "...\multiprocessing\managers.py", line 479, in start
self._process.start()
File "...\multiprocessing\process.py", line 105, in start
self._popen = self._Popen(self)
File "...\multiprocessing\context.py", line 313, in _Popen
return Popen(process_obj)
File "...\multiprocessing\popen_spawn_win32.py", line 66, in init
reduction.dump(process_obj, to_child)
File "...\multiprocessing\reduction.py", line 59, in dump
ForkingPickler(file, protocol).dump(obj)
_pickle.PicklingError: Can't pickle <function at 0x00594CD8>: attribute lookup on main failed
这是怎么回事
return s and s.strip()
这个应该如何理解呢?and在这里的作用是什么呢?为何不能是
return s.strip()
搜索到了原因:
https://stackoverflow.com/questions/45799757/why-does-return-s-and-s-strip-work-when-using-filter
我是小白,不会玩。去哪里入门。
I need to learn Python
运行learning.py有什么用呢?做什么用的?一直没理解,烦请解释一下,初学者。。。
按照recur.py里面的code照搬,运行出来的结果和网页中写的期待结果不一样。
#!/usr/bin/python3
# -*- coding: utf-8 -*-
import copy
def YH_triangles(line):
originList=[] #initial empty list
resultList=[] #initial empty list
for i in range(line):
originList.append(0)
for j in range(i+1):
if j==0 or j==i:
originList[j]=1
else:
originList[j]=resultList[j-1]+resultList[j]
resultList=copy.deepcopy(originList) #deepcopy to resultList
yield resultList
import time
from datetime import datetime as dt
host_temp="D:\python work\blolcker"
hosts_path=r"C:\Windows\System32\drivers\etc\hosts"
redirect="127.0.0.1"
website_list=["www.facebook.com","facebook.com"]
while True:
if dt(dt.now().year,dt.now().month,dt.now().day,8) <dt.now() < dt(dt.now().year,dt.now().month,dt.now().day,12):
print("working hours...")
with open(hosts_path,"r+") as file:
content = file.read()
for website in website_list:
if website in content:
pass
else:
file.write(redirect+" "+website+"\n")
else:
with open(hosts_path,"r+") as file:
content = file.readlines()
file.seek(0)
for line in content:
if not any(website in line for website in website_list):
file.write(line)
file.truncate()
print("you are free")
time.sleep(5)
learn-python3/samples/oop_advance/orm.py
Line 64 in ec95ecf
该实现,一个 User
对象,似乎只能对应生成一条插入。
没必要用 SQL 的问号语法( values (?,?,?,?)
)吧?
to learn
关于用生成器找素数的这个问题, 代码逻辑很清楚 但是电脑怎么跑不出来?求解答
I am using Kali Linux virtual machine to do some pentesting and see if my Windows virtual machine was vulnerable. I am trying to get data using my Kali Linux virtual Machine but I am not receiving any data from the Windows virtual machine. Can someone tell me how I should edit my Python code to get data from my Windows virtual machine? Thank you.
系统:win10,编辑器:pycharm,版本:Python3.7
C:\ProgramData\Anaconda3\python.exe C:/仙女莉/Python学习/start.py
Traceback (most recent call last):
File "C:/仙女莉/Python学习/start.py", line 17, in
server = smtplib.SMTP(smtp_server, 25) # SMTP协议默认端口是25
File "C:\ProgramData\Anaconda3\lib\smtplib.py", line 261, in init
fqdn = socket.getfqdn()
File "C:\ProgramData\Anaconda3\lib\socket.py", line 676, in getfqdn
hostname, aliases, ipaddrs = gethostbyaddr(name)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc0 in position 0: invalid start byte
下面是源码:
from email.mime.text import MIMEText
msg = MIMEText('hello, send by Python...', 'plain', 'utf-8')
from_addr = input('From: ')
password = input('Password: ')
to_addr = input('To: ')
smtp_server = input('SMTP server: ')
import smtplib
server = smtplib.SMTP(smtp_server, 25)
server.set_debuglevel(1)
server.login(from_addr, password)
server.sendmail(from_addr, [to_addr], msg.as_string())
server.quit()
我启动后,访问不了,怎么回事?
I am a beginner in python 3
learn-python3/samples/async/async_wget2.py
与 learn-python3/samples/async/async_hello2.py
I need course pyhon3
第67行代码未定义charset导致有中文值的环境变量无法正常显示。(Chrome 版本 58.0.3029.110 (64-bit))
# diff:
67- start_response('200 OK', [('Content-Type', 'text/html')])
67+ start_response('200 OK', [('Content-Type', 'text/html; charset=utf-8')])
第70行<p>
元素未闭合。
#diff:
70- p = '<p>%s = %s' % (k, str(v))
70+ p = '<p>%s = %s</p>' % (k, str(v))
建议将教材整理到gitbook.
do_logging.py中
logging.info('n==%d' % n) 警告提示
应改为 logging.info('n==%d', n)
按照老师讲的方法,第一步,将notepad++的格式转变为UTF-8 without BOM
第二步,在代码前面加上# -- coding: utf-8 --
在做《字符串和编码》的练习时,中文输出还是二进制
是否我的计算机默认语言设置有问题?
代码如下:
s1=72
s2=85
r=(s2-s1)/s1*100
print ('the percentage: %.1f%%' % r)
在cmd界面调用后:
C:\work>python percent.py
Traceback (most recent call last):
File "percent.py", line 5, in
print ('\u767e\u5206\u6bd4\u4e3a: %.1f%%' % r)#show xx.x%, %%means showing one %
File "C:\Users\paris\AppData\Local\Programs\Python\Python35\lib\encodings\cp437.py", line 19, in encode
return codecs.charmap_encode(input,self.errors,encoding_map)[0]
UnicodeEncodeError: 'charmap' codec can't encode characters in position 0-3: character maps to
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A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
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