python - clsung is reading

2016-08-25

Update salt from 2015.5.3 to 2016.3.2

When reading salt’s source code, it seems we have a ‘source_hash_update’ option on “archive.extracted”, however when I added so, salt complains:

    Warnings: 'source_hash_update', 'group' and 'user' are invalid keyword
              arguments for 'archive.extracted'. If you were trying to pass
              additional data to be used in a template context, please populate
              'context' with 'key: value' pairs. Your approach will work until
              Salt Carbon is out. Please update your state files.

Warnings: 'source_hash_update', 'group' and 'user' are invalid keyword

arguments for 'archive.extracted'. If you were trying to pass

additional data to be used in a template context, please populate

'context' with 'key: value' pairs. Your approach will work until

Salt Carbon is out. Please update your state files.

2013-10-04

Crop image in golang

In python, for cropping image I use PIL. However the dependencies of PIL is huge, also need to install some lib*-dev packages.

So I choose go to crop images:

Usage:

% go run crop.go large.jpeg thumbna

2013-07-24

Create file with random string in python

#!/usr/bin/env python

import string

import random
out_file = 'text_file.txt'

file_size = 1024 * 1024
rands = lambda x: ''.join(random.choice(string.letters + string.digits) for x in xrange(x))

with open(out_file, 'w') as f:

    f.write(rands(file_size))

2011-06-22

Deploy django project to dotCloud

QuickNote: follow the Official guide may not be enough. Read More