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@shaypal5
shaypal5 / confusion_matrix_pretty_print.py
Last active May 13, 2024 13:04
Pretty print a confusion matrix with seaborn
import pandas as pd
import matplotlib.pyplot as plt
import seaborn as sns
def print_confusion_matrix(confusion_matrix, class_names, figsize = (10,7), fontsize=14):
"""Prints a confusion matrix, as returned by sklearn.metrics.confusion_matrix, as a heatmap.
Note that due to returning the created figure object, when this funciton is called in a
notebook the figure willl be printed twice. To prevent this, either append ; to your
function call, or modify the function by commenting out the return expression.
@FauxFaux
FauxFaux / do-release-upgrade.md
Last active May 13, 2023 20:43
What does Ubuntu's do-release-upgrade script actually do?

Ubuntu encourage upgrading between releases by running a command, instead of by manually editing sources and getting on with it. This tool's name is do-release-upgrade, and I believe it should just be doing:

sed -i 's/wily/xenial/g' /etc/apt/sources.list /etc/apt/sources.list.d/*

This command does not explain what it wants to do, or why it is doing anything. It has, in the past:

  • Disabled repos I was using, and hence broken the software in them.
@toast38coza
toast38coza / commands
Last active March 3, 2022 11:30
Simple systemd unit for running a django app
# start / stop / restart / status
systemctl start test
systemctl stop test
systemctl restart test
systemctl status test
# logs use journalctl:
# tail the logs for unit `django`
journalctl -f -u django
@jimjam88
jimjam88 / print-resultset.java
Last active February 16, 2019 15:37
Print an ResultSet to the console (STDOUT)
// Imports required
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
/**
* Print a result set to system out.
*
* @param rs The ResultSet to print
* @throws SQLException If there is a problem reading the ResultSet
@thatalextaylor
thatalextaylor / 1-python-pretty-time-delta.py
Last active November 5, 2023 22:48
Pretty print a time delta in Python in days, hours, minutes and seconds
def pretty_time_delta(seconds):
sign_string = '-' if seconds < 0 else ''
seconds = abs(int(seconds))
days, seconds = divmod(seconds, 86400)
hours, seconds = divmod(seconds, 3600)
minutes, seconds = divmod(seconds, 60)
if days > 0:
return '%s%dd%dh%dm%ds' % (sign_string, days, hours, minutes, seconds)
elif hours > 0:
return '%s%dh%dm%ds' % (sign_string, hours, minutes, seconds)
@bradmontgomery
bradmontgomery / dummy-web-server.py
Last active November 13, 2024 16:11
a minimal http server in python. Responds to GET, HEAD, POST requests, but will fail on anything else.
#!/usr/bin/env python
"""
Very simple HTTP server in python (Updated for Python 3.7)
Usage:
./dummy-web-server.py -h
./dummy-web-server.py -l localhost -p 8000
Send a GET request: