我们如何在python中异或十六进制数字,例如.我想xor'ABCD'到'12EF'.答案应该是B922.
我使用下面的代码,但它返回垃圾值
def strxor(a, b): # xor two strings of different lengths
if len(a) > len(b):
return "".join(["%s" % (ord(x) ^ ord(y)) for (x, y) in zip(a[:len(b)], b)])
else:
return "".join(["%s" % (ord(x) ^ ord(y)) for (x, y) in zip(a, b[:len(a)])])
key ='12ef'
m1='abcd'
print strxor(key,m1)
我试图用Python 2.7.3 在Ubuntu 10.04(Lucid Lynx)上安装pycrypto2.6 .
我遇到以下错误:
running build
running build_py
running build_ext
running build_configure
checking for gcc... no
checking for cc... no
checking for cl.exe... no
configure: error: in `/home/pratibha/Desktop/pycrypto-2.6':
configure: error: no acceptable C compiler found in $PATH
See `config.log' for more details
Traceback (most recent call last):
File "setup.py", line 456, in <module>
core.setup(**kw)
File "/usr/local/lib/python2.7/distutils/core.py", line 152, in setup
dist.run_commands()
File "/usr/local/lib/python2.7/distutils/dist.py", line 953, in run_commands
self.run_command(cmd)
File "/usr/local/lib/python2.7/distutils/dist.py", line 972, in run_command
cmd_obj.run() …无法解决是什么错误。
django.db.utils.OperationalError: server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
当我运行以下任何命令时，我一直在获取跟踪
Unhandled exception in thread started by <function wrapper at 0x0000000003DAC4A8>
Traceback (most recent call last): File "C:\Python27\lib\site-packages\django\utils\autoreload.py", line 226, in wrapper fn(*args, **kwargs)
File "C:\Python27\lib\site packages\django\core\management\commands\runserver.py", line 124, in inner_run
self.check_migrations()
File "C:\Python27\lib\site-packages\django\core\management\base.py", line 437, in check_migrations
executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
File "C:\Python27\lib\site-packages\django\db\migrations\executor.py", line 20, in __init__
self.loader = MigrationLoader(self.connection)
File "C:\Python27\lib\site-packages\django\db\migrations\loader.py", line 52, …我正在尝试使用Office365 smtp服务器自动发送电子邮件。我的代码以前适用于 gmail 服务器，但不适用于使用 smtplib 的 Python 中的 Office365 服务器。
我的代码：
import smtplib
server_365 = smtplib.SMTP('smtp.office365.com', '587')
server_365.ehlo()
server_365.starttls()
ehlo() 的响应是：(501, '5.5.4 Invalid domain name [DM5PR13CA0034.namprd13.prod.outlook.com]')
此外，.starttls() 引发了SMTPException: STARTTLS extension not supported by server
知道为什么会发生这种情况吗？
首先，我在某处读到我们不应该使用XMLHttpRequest.
其次，我是 Javascript 的新手。
第三，我创建了一个网页来提交电子邮件和密码。
<form method="POST" onsubmit="return check();">{% csrf_token %}
<p><b>Login</b></p>
<input type="email" name="email" placeholder="Email" required></input>
<input type="password" name="password" placeholder="Password" id='new_password' ></input>
<span id='message'>{{msg}}</span>
<button type="submit" onclick="check()" name="Submit"><b>Submit</b></button>
</form>
我的检查功能是
function check() {
document.getElementById('message').innerHTML = "checking";
const url = "https://<hostname/login";
const data = {
'email' : document.getElementById('email').value,
'password' : document.getElementById('password').value
};
const other_params = {
headers : { "content-type" : "application/json; charset=UTF-8" },
body : data,
method : "POST",
mode : "cors"
};
fetch(url, other_params)
.then(function(response) { …我有一个使用硒进行测试的脚本。现在甚至可以使用打开 Google 页面
driver.get(url) # url = Google homepage url
给我以下错误
driver.get("https://my.gumtree.com/login")
File "C:\Python34\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 245, in get
self.execute(Command.GET, {'url': url})
File "C:\Python34\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 233, in execute
self.error_handler.check_response(response)
File "C:\Python34\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 194, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: unknown error: cannot determine loading status
from unknown error: missing or invalid 'entry.level'
(Session info: chrome=65.0.3315.3)
(Driver info: chromedriver=2.29.461591 (62ebf098771772160f391d75e589dc567915b233),platform=Windows NT 10.0.16299 x86_64)
我有 Google chrome 版本 65、Chromedriver 2.35 和 selenium 2.53.1
我根据其他类似问题中提到的解决方案尝试了不同的版本组合（下表中提到），但没有任何效果。
Selenium Chrome Chromedriver
2.53.0 63 2.33
2.53.1 …python selenium google-chrome selenium-chromedriver selenium-webdriver
我正在尝试使用 pycrypto++ 在 python 中设计 AES CTR 加密/解密程序。但每次我运行下面的代码时：
decryptor = AES.new(key, AES.MODE_CTR, counter=Counter.new(64, prefix=nonce))
我收到以下错误：
Traceback (most recent call last):
File "aes-ctr.py", line 3, in <module>
from collections import Counter
ImportError: cannot import name Counter
nonce 是我给的。请帮帮我。我的python版本是2.7.3
我试图将我的线程代码转换为多处理代码.但它给了我错误
Name Error: global name 'multiprocessing' is not defined
安装了多处理,我将其导入
from multiprocessing import *