我在Python2.7.10下使用urllib2与https连接时遇到了问题。
有什么想法我错过了吗?
Python 2.7.10 (default, Jun 18 2015, 10:53:24)
[GCC 4.4.5] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import ssl, urllib2
>>> ssl.HAS_SNI
True
>>>
我有一个用C++编写的代码库,它广泛使用了wxWidgets库。我现在正在尝试包装我的库(目前正在使用SWIG),以便可以从wxPython调用它,但我碰到了一堵墙:
------ Build started: Project: MyLibLib, Configuration: Release_SWIG_OutputForBin Win32 ------
Performing Custom Build Step
In order to function correctly, please ensure the following environment variables are correc
我在Windows 10上尝试Streamlit1.13,在那里我遇到了以下错误:
Z:\>streamlit run st1.py
2022-10-04 02:25:28.218 INFO numexpr.utils: NumExpr defaulting to 4 threads.
Welcome to Streamlit!
If you're one of our development partners or you're interested in getting
personal technical support or Streamli
在GHC手册中,有人说
module M where
data R = R { a,b,c :: Int }
module X where
import M( R(a,c) )
f b = R { .. }
R{..}扩展到R{M.a=a}
但我看不出什么是定义。这段代码是如何工作的?
我试图编译X模块,GHC说:“不在范围内:数据构造函数‘R’”。
我正试图通过python从windows机器控制与Raspberry Pi Zero 2w连接的电机和伺服系统。我对RasPi没有多大的解释,但我设法通过远程GPIO获得了一个Led闪烁,稍微修改了代码,所以我的H桥转动了马达:
from gpiozero import LED
from gpiozero.pins.pigpio import PiGPIOFactory
from time import sleep
factory = PiGPIOFactory(host='') #IP is cut out for publishing
led1 = LED(17, pin
我有一个数据库,里面有这样的记录
{
"_id": "eaed1a721cd763c68f7db76862cbf2c1",
"_rev": "4-2f99dc06018a72af40143b47f0825aaa",
"categorisationComments": "null",
"description": "A mobile image-, video-sharing and social network service",
"app