大约有 11,000 项符合查询结果（耗时：0.0279秒） [XML]
Command to get time in milliseconds
...
date command didnt provide milli seconds on OS X, so used an alias from python
millis(){ python -c "import time; print(int(time.time()*1000))"; }
OR
alias millis='python -c "import time; print(int(time.time()*1000))"'
EDIT: following the comment from @CharlesDuffy.
Forking any child process t...
How to install psycopg2 with “pip” on Python?
...hes.
Option 1
Install the psycopg2-binary PyPI package instead, it has Python wheels for Linux and Mac OS.
pip install psycopg2-binary
Option 2
Install the prerequsisites for building the psycopg2 package from source:
Debian/Ubuntu
Python 3
sudo apt install libpq-dev python3-dev
You m...
Is it possible to install another version of Python to Virtualenv?
I have a shared account in a web-hosting that has Python 2.4 installed, but my code is not compatible with 2.4. Is it possible to install Python 2.6 directly to Virtualenv?
...
Check to see if python script is running
I have a python daemon running as a part of my web app/ How can I quickly check (using python) if my daemon is running and, if not, launch it?
...
How can I randomize the lines in a file using standard tools on Red Hat Linux?
...
A one-liner for python:
python -c "import random, sys; lines = open(sys.argv[1]).readlines(); random.shuffle(lines); print ''.join(lines)," myFile
And for printing just a single random line:
python -c "import random, sys; print random.ch...
Automatically import modules when entering the python or ipython interpreter
... myself typing import numpy as np almost every single time I fire up the python interpreter. How do I set up the python or ipython interpreter so that numpy is automatically imported?
...
Redirecting stdout to “nothing” in python
...prints in. You then just use is in a with-statement to silence all output.
Python 2:
import os
import sys
from contextlib import contextmanager
@contextmanager
def silence_stdout():
old_target = sys.stdout
try:
with open(os.devnull, "w") as new_target:
sys.stdout = new_t...
Getting command-line password input in Python
... getpass is a standard library module that's been around since at least Python 2.5
– jocassid
Aug 9 '18 at 19:43
1
...
Make sure only a single instance of a program is running
Is there a Pythonic way to have only one instance of a program running?
20 Answers
20...
pip broke. how to fix DistributionNotFound error?
...e.
I think this is how you should do it nowadays..
$ sudo apt-get install python-pip python-dev build-essential
$ sudo pip install --upgrade pip
$ sudo pip install --upgrade virtualenv
share
|
i...