Python on Ricky

Python Numbers Every Programmer Should Know

Sun, 04 Jan 2026 07:06:28 +0800

Python Numbers Every Programmer Should Know

Python's many command-line utilities

Sat, 06 Jul 2024 20:39:01 +0800

Python’s many command-line utilities

These are Python’s most helpful general-purpose command-line tools.

Command	Purpose	More
`python -m http.server`	Start a simple web server	Video
`python -m webbrowser`	Launch your web browser	Docs
`python -m json.tool`	Nicely format JSON data	Docs
`python -m calendar`	Show a command-line calendar	Docs

`http.server`

Running the http.server module as a script will start a web server on port 8000 that hosts files from the current directory. I use this all the time to preview Sphinx documentation sites (especially when using Sphinx’s dirhtml option which is all about subdirectories of index.html files).

A python script that allows your terminal to snow.

Sun, 24 Dec 2023 15:40:00 +0800

A python script that allows your terminal to snow.

docker run --rm -ti sontek/snowmachine tree --color rainbow --particle "*" --snow true --lights-color rainbow

Using Python for multimedia: video, audio, and images

Sun, 31 May 2020 17:48:10 +0800

Using Python for multimedia: video, audio, and images

Python install module issues

Wed, 04 Mar 2020 15:43:38 +0800

I can’t install python-ldap

python-ldap

https://www.python-ldap.org/en/latest/installing.html

$ pip install python-ldap
In file included from Modules/LDAPObject.c:9:


Modules/errors.h:8: fatal error: lber.h: No such file or directory

Debian/Ubuntu: sudo apt-get install libsasl2-dev python-dev libldap2-dev libssl-dev
RedHat/CentOS:

sudo yum install python-devel openldap-devel
sudo yum groupinstall "Development tools"

molecule

$ pip install molecule
error: command 'gcc' failed with exit status 1


 ----------------------------------------
Command "/usr/bin/python2 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-I5DGC3/psutil/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-Fy7V4X/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-install-I5DGC3/psutil/

RedHat/CentOS:

yum -y install gcc gcc-c++ kernel-devel
yum -y install python-devel libxslt-devel libffi-devel openssl-devel

ansible

$ pip install ansible
ImportError: No module named pkg_resources

yum install -y python-setuptools

`import pandas`

ModuleNotFoundError: No module named '_bz2'

apt-get install -y libbz2-dev
yum install -y bzip2-devel

`from .cv2 import *`

ImportError: libSM.so.6: cannot open shared object file: No such file or directory
ImportError: libXrender.so.1: cannot open shared object file: No such file or directory
ImportError: libXext.so.6: cannot open shared object file: No such file or directory

Ubuntu:

apt-get install libsm6
apt-get install libxrender1
apt-get install libxext-dev

CentOS:

yum install libSM
yum install libXrender-devel
yum install libXext

What the f*ck Python! 🐍

Fri, 11 Oct 2019 14:32:20 +0800

What the f*ck Python! 🐍

Python Telegram Bot

Thu, 11 Jul 2019 14:03:25 +0800

Sentry Source Code Development Notes

Wed, 03 Jul 2019 11:53:15 +0800