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@myusuf3
myusuf3 / uninstall.sh
Created April 21, 2011 03:06
how to cleanly uninstall python packages installed with python setup.py
# Next time you need to install something with python setup.py -- which should be never but things happen.
python setup.py install --record files.txt
# This will cause all the installed files to be printed to that directory.
# Then when you want to uninstall it simply run; be careful with the 'sudo'
cat files.txt | xargs sudo rm -rf
@scaryguy
scaryguy / change_primary_key.md
Last active May 13, 2024 18:43
How to change PRIMARY KEY of an existing PostgreSQL table?
-- Firstly, remove PRIMARY KEY attribute of former PRIMARY KEY
ALTER TABLE <table_name> DROP CONSTRAINT <table_name>_pkey;
-- Then change column name of  your PRIMARY KEY and PRIMARY KEY candidates properly.
ALTER TABLE <table_name> RENAME COLUMN <primary_key_candidate> TO id;
@blackfalcon
blackfalcon / git-feature-workflow.md
Last active April 13, 2024 07:33
Git basics - a general workflow

Git-workflow vs feature branching

When working with Git, there are two prevailing workflows are Git workflow and feature branches. IMHO, being more of a subscriber to continuous integration, I feel that the feature branch workflow is better suited, and the focus of this article.

If you are new to Git and Git-workflows, I suggest reading the atlassian.com Git Workflow article in addition to this as there is more detail there than presented here.

I admit, using Bash in the command line with the standard configuration leaves a bit to be desired when it comes to awareness of state. A tool that I suggest using follows these instructions on setting up GIT Bash autocompletion. This tool will assist you to better visualize the state of a branc

@StuartGordonReid
StuartGordonReid / DistanceMetrics.py
Created June 15, 2015 14:36
Implementation of various distance metrics in Python
import math
import random
import csv
import cProfile
import numpy as np
import hashlib
memoization = {}
@yrevar
yrevar / imagenet1000_clsidx_to_labels.txt
Last active May 10, 2024 05:27
text: imagenet 1000 class idx to human readable labels (Fox, E., & Guestrin, C. (n.d.). Coursera Machine Learning Specialization.)
{0: 'tench, Tinca tinca',
1: 'goldfish, Carassius auratus',
2: 'great white shark, white shark, man-eater, man-eating shark, Carcharodon carcharias',
3: 'tiger shark, Galeocerdo cuvieri',
4: 'hammerhead, hammerhead shark',
5: 'electric ray, crampfish, numbfish, torpedo',
6: 'stingray',
7: 'cock',
8: 'hen',
9: 'ostrich, Struthio camelus',
@AtulKsol
AtulKsol / psql-error-fix.md
Last active April 10, 2024 07:41
Solution of psql: FATAL: Peer authentication failed for user “postgres” (or any user)

psql: FATAL: Peer authentication failed for user “postgres” (or any user)

The connection failed because by default psql connects over UNIX sockets using peer authentication, that requires the current UNIX user to have the same user name as psql. So you will have to create the UNIX user postgres and then login as postgres or use sudo -u postgres psql database-name for accessing the database (and psql should not ask for a password).

If you cannot or do not want to create the UNIX user, like if you just want to connect to your database for ad hoc queries, forcing a socket connection using psql --host=localhost --dbname=database-name --username=postgres (as pointed out by @meyerson answer) will solve your immediate problem.

But if you intend to force password authentication over Unix sockets instead of the peer method, try changing the following pg_hba.conf* line:

from

import numpy as np
from keras import backend as K
from keras.models import Sequential
from keras.layers.core import Dense, Dropout, Activation, Flatten
from keras.layers.convolutional import Convolution2D, MaxPooling2D
from keras.preprocessing.image import ImageDataGenerator
from sklearn.metrics import classification_report, confusion_matrix
#Start
train_data_path = 'F://data//Train'
@ruxi
ruxi / xgboost_gpu_build.txt
Last active December 5, 2020 08:08
how to build xgboost with gpu support
# install latest nvidia driver
sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt-get update
# then go to device manager and dl newest driver
# nvidia-390 for linux >4.13.32 | there is a bug with <nvidia-390 & >linux 4.13.25
@valferon
valferon / postgres_manager.py
Created March 29, 2018 02:35
Python script to take care of postgres backup and restore of data
#!/usr/bin/python3
import argparse
import logging
import subprocess
import os
import tempfile
from tempfile import mkstemp
import configparser
import gzip