大约有 40,000 项符合查询结果（耗时：0.0427秒） [XML]
How to install MySQLdb (Python data access library to MySQL) on Mac OS X?
...
Update for those using Python3:
You can simply use conda install mysqlclient to install the libraries required to use MySQLdb as it currently exists. The following SO question was a helpful clue: Python 3 ImportError: No module named 'ConfigParser'...
Why do people say that Ruby is slow? [closed]
... get some numbers at the Computer Language Benchmarks Game:
Ruby 1.9 vs. Python3 within the same order of magnitude
Ruby 1.9 vs. PHP within the same order of magnitude
Ruby 1.9 vs. Java 6 server up to two orders of magnitude slower!
Ruby 1.9 vs. C (gcc) up to two orders of magnitude slower!
...
...
Build the full path filename in Python
...o access arguments passed to the script when executing it:
#!/usr/bin/env python3
# coding: utf-8
# import netCDF4 as nc
import numpy as np
import numpy.ma as ma
import csv as csv
import os.path
import sys
basedir = '/data/reu_data/soil_moisture/'
suffix = 'nc'
def read_fid(filename):
fid ...
Accessing dict keys like an attribute?
...ed and another one in __dict__
Causes a memory leak in Python < 2.7.4 / Python3 < 3.2.3
Pylint goes bananas with E1123(unexpected-keyword-arg) and E1103(maybe-no-member)
For the uninitiated it seems like pure magic.
A short explanation on how this works
All python objects internally store th...
Catch a thread's exception in the caller thread in Python
...
to add an except else around your work thread
Source:
#!/usr/bin/env python3
import concurrent.futures
import time
def func_that_raises(do_raise):
for i in range(3):
print(i)
time.sleep(0.1)
if do_raise:
raise Exception()
for i in range(3):
print(i...
How to save traceback / sys.exc_info() values in a variable?
...
For Python3, exc_tuple[1] (aka value) is the instance of the exception, not the "String passed as parameter". See: docs.python.org/3/library/sys.html#sys.exc_info
– Jinghao Shi
Oct 6 '18 at ...
Is there an equivalent to CTRL+C in IPython Notebook in Firefox to break cells that are running?
...jupyter kernel using the jupyter api. This script was tested on MACOS with python3 and requires jupyter notebook, requests, json and psutil.
Put the script in your home directory and then usage looks like:
python ~/interrupt_bad_kernels.py
Interrupt kernel chews cpu.ipynb; PID: 57588; CPU: 2.3%? (...
MySQL复制的概述、安装、故障、技巧、工具 - 数据库(内核) - 清泛网 - 专注...
...新CHANGE MASTER TO即可，系统会抛弃当前的中继日志，重新下载：
mysql> CHANGE MASTER TO
MASTER_LOG_FILE='<Relay_Master_Log_File>',
MASTER_LOG_POS=<Exec_Master_Log_Pos>;
mysql> START SLAVE;
至于为什么使用的是Relay_Master_Log_File & Exec_Master_Log_Pos...
TCP: can two different sockets share a port?
...
As expected, the output is blank. Now let's start a web server:
sudo python3 -m http.server 500
Now, here is the output of running netstat again:
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:500 0.0.0.0:* ...
Dictionary vs Object - which is more efficient and why?
...
Is this still the case with recent versions of python3, 11 years later?
– matanster
May 22 at 19:41
add a comment
|
...