我试着遵循本教程:
我被困在这里:当我在lighttpd下运行这个程序时,我得到了这个错误:
<class 'sqlalchemy.exc.OperationalError'>: (OperationalError) unable to open database file u'UPDATE user SET last_seen=? WHERE user.id = ?' ('2014-08-03 14:51:51.681210', 2)
args = ('(OperationalError) unable to
我正在尝试将Cython包装的C++模块部署到PyPI作为轮子。目标是使I2C硬件模块在任何Raspberry上与Python一起工作。到目前为止,我编译了代码,我知道如果我只将编译后的模块从PIP3B运行Buster复制到Pi运行扩展,那么当我从Buster将转盘部署到test.pypi.org并尝试将其安装在module上时,我得到如下结果:
Could not find a version that satisfies the requirement pyiArduinoI2Crelay (from versions: )
No matching distribution found f
我正在使用Selenium和Firefox在Python中进行抓取。
我可以使用以下方法将href转换成一个对象:
HREF = node.find_elements_by_xpath(".//a") # Get the href's under the current node
它返回一堆<a>标记,如下所示:
<a href="http://example.com" class="" title="The Link" data-ipshover="" data-ipshover-tar
我使用sudo apt-get install docker-compose安装了坞-组合
在任何调用(甚至只是使用-v标志获取版本)时,它都会抛出以下内容:
/usr/lib/python2.7/dist-packages/OpenSSL/crypto.py:12: CryptographyDeprecationWarning: Python 2 is no longer supported by the Python core team. Support for it is now deprecated in cryptography, and will be removed in a f
在cryptography包中导入时,尝试运行包含python-binance和OpenSSL模块的Python3代码失败。以下是错误的部分堆栈跟踪: File "/usr/lib/python3/dist-packages/cryptography/x509/base.py", line 15, in <module>
from cryptography.x509.extensions import Extension, ExtensionType
File "/usr/lib/python3/dist-packages/cryptogr
我的系统规格:
C:\Users\Lenovo>conda info
Current conda install:
platform : win-64
conda version : 4.3.8
conda is private : False
conda-env version : 4.3.8
conda-build version : 1.21.3
python version : 3.5.2.final.0
requests version : 2.12.4
root environment : C:\Anacon
我最近开始了我的Rpi项目。
我需要一些帮助或建议来修改我的代码。
我有一个( Pi,+缓速器V4.4,+ nema 17步进电机)
使用BCM布局
我需要一个具有区间@的无限嵌套循环
# Do some steps.
for i in range(200):#800 == full rotation
stepper.step()
我希望我的步进步进200步,然后停止0.1秒,然后再前进200步,等等(无穷大循环)
司机:
#!/usr/bin/python
# -*- coding: utf-8 -*-
import RPi.GPIO as gpio
import time, sys
我使用Python脚本,它使用pdfplumber提取PDF文件的文本内容。
在python中运行pdf管道工时,我遇到了如下错误
CryptographyDeprecationWarning: Python 3.6 is no longer supported by the Python core team.
Therefore, support for it is deprecated in cryptography and will be removed in a future release.
from cryptography.hazmat.backends import defa
我在win7上安装了win7,并安装了notepad++ exec插件。每当我执行正在运行的.py脚本时,都会得到以下错误:
C:/Python27/python.exe ""
Process started >>>
C:\Python27\python.exe: can't find '__main__' module in ''
<<< Process finished.
================ READY ================
我的index.py脚本如下:
text = &