This is a collection of short Python scripts I use in Linux. Portions of this README are automatically generated with generate-readme.py to insert the script-level comments as descriptions below.

I have these added to my PATH variable to run from anywhere. Clone the repo and add the following to your bashrc or zshrc, replacing <python-scripts> with the location of the cloned repository. See my dotfiles repo for my complete Mac and Linux system configurations.

# Add additional directories to the path.
pathadd() {
  [ -d "$1" ] && [[ ":$PATH:" != *":$1:"* ]] && PATH="${PATH:+"$PATH:"}$1"
}

pathadd <python-scripts>/python2.7
pathadd <python-scripts>/python3

These scripts are written in Python 3 except when external libraries don't support Python 3. Dependencies for Python 2 and 3 for all scripts are included in requirements-{2,3}.txt and can be installed using pip with pip3 install -r requirements-3.txt.

Continuous integration is provided by Travis CI here. .travis.yml calls .travis-script-2.sh and .travis-script-3.sh to ensure requirements-{2,3}.txt have all of the Python 2 and Python 3 scripts and that there are no careless errors that cause the scripts to not execute the help message. pep8 will fail the build if pep8 styling conventions aren't met.

The subheadings link to the script contents on GitHub.

• Authors: Brandon Amos
• Created: 2015.03.27

Generates the README for bamos/python-scripts so that the README and scripts contain synchronized documentation. Script descriptions are obtained by parsing the docstrings and inserted directly into the README as markdown.

• Authors: Brandon Amos
• Created: 2014.04.19

This script (music-organizer.py) organizes my music collection for iTunes and mpv using tag information. The directory structure is <artist>/<track>, where <artist> and <track> are lower case strings separated by dashes.

See my blog post Using Python to organize a music directory for a more detailed overview of this script.

• Authors: Brandon Amos
• Created: 2014.11.30

This script implements the simple multitail example to tail multiple files and append the filename to the beginning of the output.

• Authors: Brandon Amos
• Created: 2015.08.10

This script computes the mean of a directory of images for Caffe.

• Authors: Brandon Amos
• Created: 2015.12.30

This script (fix-music-tags.py) mass-removes unwanted music tags.

• Authors: Brandon Amos
• Created: 2014.11.02

Produces a Markdown table concisely summarizing a list of GitHub repositories.

• Authors: Brandon Amos
• Created: 2014.02.06

Script to be run by crontab to report broken links.

Builds upon linkchecker (Ubuntu: sudo apt-get install linkchecker) to hide warnings and to send a concise email if bad links are found.

• Authors: Brandon Amos
• Created: 2014.02.14

Obtain the NATO phonetic alphabet representation from short phrases.

$ phonetic.py github
g - golf
i - india
t - tango
h - hotel
u - uniform
b - bravo

• Authors: Brandon Amos
• Created: 2014.02.14

rank-writing.py ranks the writing quality of my blog's Markdown posts and my project's Markdown README files.

The following programs should be on your PATH:

• aspell
• write-good
• diction

$ rank-writing.py *.md

=== 2013-05-03-scraping-tables-python.md ===
Total: 53
├── aspell: 34
├── diction: 0
└── write-good: 19

...

=== 2013-04-16-pdf-from-plaintext.md ===
Total: 0
├── aspell: 0
├── diction: 0
└── write-good: 0

• Authors: Brandon Amos
• Created: 2015.03.25

This is a Python script that outputs the path of the current OSX wallpaper. This is helpful when the desktop wallpaper is randomized across a large collection of pictures and you want to delete the current wallpaper.

• This approach doesn't work with multiple monitors or virtual desktops.

• OSX Yosemite 10.10.2 with a single desktop on a MBP.

Ensure db_path and wallpaper_dir are correctly set below.

Assuming get-osx-wallpaper.py is on your path, check the output with the following

$ get-osx-wallpaper.py
/Users/bamos/Pictures/wallpaper/nature/496.jpg

Please ensure this is correct before trying to remove it!

This can be paired with other commands such as open or rm. Run killall Dock to refresh the changes after removing the file. Note that the dock will be restarted and all windows will be unminimized.

$ open $(get-osx-wallpaper.py)
$ rm $(get-osx-wallpaper.py) && killall Dock

Example alias definitions for bash and zsh are available in https://github.com/bamos/dotfiles/blob/master/.funcs:

alias open-wallpaper='open $(get-osx-wallpaper.py)'
alias rm-wallpaper='rm $(get-osx-wallpaper.py) && killall Dock'

• Authors: Brandon Amos
• Created: 2014.10.17

The printers in my office print a cover page before every job, and I don't like printing many cover pages if I want to submit multiple papers separately so that the papers don't overlap. This script will merge PDF documents and insert blank pages so that the printed pages won't overlap documents. The modulo option is helpful to print 2 PDF pages per physical page side.

The script uses PyPDF2 to merge the documents and to extract the number of pages in the input documents and ghostscript to create a blank PDF page.

$ merge-pdfs-printable.py a.pdf b.pdf c.pdf --modulo 4
a.pdf
  + Pages: 6
  + Added 2 blank pages.
b.pdf
  + Pages: 13
  + Added 3 blank pages.
c.pdf
  + Pages: 13
  + Added 3 blank pages.
Merged output is in '/tmp/tmpm2n5g0mh-merge.pdf'.

Note: Some of my decrypted PDF documents have resulted in PyPDF2.utils.PdfReadError: file has not been decrypted. My current workaround solution is to run pdf2ps on the PDF and then ps2pdf on the PS file.

• Authors: Brandon Amos
• Created: 2015.06.06

Detect and remove duplicate images using average hashing.

http://www.hackerfactor.com/blog/index.php?/archives/432-Looks-Like-It.html

• Authors: Brandon Amos
• Created: 2014.11.7

Count work frequencies within a file.

$ word-counter.py shakespeare.md --numWords 4 --maxTuples 3

=== Sliding Window: 1 ===
    3473: 'shall'
    2238: 'would'
    2153: 'which'
    2074: 'their'

=== Sliding Window: 2 ===
    248: 'exeunt scene'
    117: 'second lord.'
    105: 'first lord.'
    102: 'queen elizabeth.'

=== Sliding Window: 3 ===
    36: 'william shakespeare dramatis'
    34: 'shakespeare dramatis personae'
    18: 'comes here? enter'
    14: 'duke's palace enter'

• Authors: J. Sebastian, Brandon Amos
• Created: 2013.08.01

A module to evaluate a mathematical expression using Python's AST.

• Original by: J. Sebastian at http://stackoverflow.com/questions/2371436.
• Modifications by: Brandon Amos.

If you want a command-line expression evaluator, use Russell91/pythonpy.

$ eval-expr.py '(((4+6)*10)<<2)'
(((4+6)*10)<<2) = 400

• Authors: Brandon Amos
• Created: 2014.01.08

Merges two mutt contact files.

There are many potpourri Python script repositories on GitHub. The following list shows a short sampling of projects, and I'm happy to merge pull requests of other projects.