Popular Python recipes tagged "meta:requires=os.path"

Lines Of Code (LOC) (Python)

2016-10-25T17:53:01-07:00

Python recipe 580709 by Jean Brouwers (count, lines, python2, python3, source). Revision 3.

Count the number of lines (code, comment, blank) in one or several Python source files.

Quick-and-dirty Windows drive detector (Python)

2016-09-20T17:46:37-07:00

Python recipe 580699 by Vasudev Ram (drives, sysadmin, system_programming, utility, windows).

This is a quick-and-dirty Python script to detect the currently available drives on your Windows PC.

A binary file split utility in Python (Python)

2016-04-07T18:19:35-07:00

Python recipe 580637 by Vasudev Ram (binary, commandline, linux, python, unix, utility, windows).

This recipe shows how to create a simple binary file split utility in Python.

It takes two command line arguments: 1) the name of the input file to split , 2) the number of bytes per file into which to split the input.

File comparison utility in Python (Python)

2016-03-26T18:31:11-07:00

Python recipe 580631 by Vasudev Ram (commandline, comparison, file, files, linux, python, unix, utilities).

This is a recipe to compare any two files via a Python command-line program. It is like a basic version of the cmp command of Unix or the fc.exe (file compare) command of Windows.

Use PyAudio to play a list of WAV files (Python)

2015-10-22T18:24:08-07:00

Python recipe 579116 by Vasudev Ram (audio, music, python, python2, sound).

This recipe shows how to use PyAudio, a 3rd-party Python audio toolkit, to play a list of WAV files on your computer. This is an enhanced version of a basic WAV code example on the PyAudio site. You can specify either one WAV filename on the command line, like this:

py pyaudio_play_wav.py chimes.wav

or specify a text file containing names of WAV files to play, like this:

py pyaudio_play_wav.py -f wav_fil_list.txt

The only dependency is PyAudio, which you can install with pip.

Roll your own Postscript code from scratch (Python)

2015-12-09T23:30:13-08:00

Python recipe 579136 by Jack Trainor (ghostscript, pdf, postscript, ps).

This recipe provides a mini-framework for creating custom Postscript PS and PDF files from scratch. It includes sample code for a personalized business index card.

Recipe does not use any Python PDF libraries. However, Ghostscript and a PDF viewer are useful for displaying/debugging output.

It's easier than you might think to roll your own Postscript code!

Mandelbrot Set made simple (Python)

2015-12-28T17:56:08-08:00

Python recipe 579143 by Jack Trainor (educational, fractal, graphics, mandelbrot, mathematics). Revision 2.

This is a mini-framework for exploring the Mandelbrot Set.

It outputs to a Tkinter window or to a PNG file (Pillow package required). It includes a disk caching mechanism for saving and later retrieving Mandelbrot calculations to avoid recalculating the Set on each run.

See module documentation for further information. Compatible with Python 2 and 3.

A UNIX-like "which" command for Python (Python)

2015-03-20T19:23:45-07:00

Python recipe 579035 by Vasudev Ram (bash, commandline, commands, linux, shell, unix, utilities, which).

UNIX users are familiar with the which command. Given an argument called name, it checks the system PATH environment variable, to see whether that name exists (as a file) in any of the directories specified in the PATH. (The directories in the PATH are colon-separated on UNIX and semicolon-separated on Windows.)

This recipe shows how to write a minimal which command in Python. It has been tested on Windows.

Monitor Progress of File Descriptors of Another Process (Python)

2014-05-30T01:10:53-07:00

Python recipe 578882 by Alfe (file_descriptor, monitor, prediction, proc, process, progress, watch).

This tool (inspired by azat@stackoverflow, see http://stackoverflow.com/a/16082562/1281485) allows to watch the progress of the file descriptors of another process. This can be used, for example, if you transfer a file to another host and the transferring program does not show any progress indication itself. Instead of waiting blindly until the routine is done, with this tool you can use Linux's proc file system to monitor the progress of the other process while it walks through the file.

The tool continuously monitors the position in and the size of the files the given process's file descriptors point to. For growing (or shrinking, but that's very unusual) files, a time when it was (or will be) empty is computed ("emptyTime"), for moving file descriptors (the typical case), the time when it started at position 0 ("startTime"), the time when it will reach the current size of the file ("reachTime") and when it will meet with the end of a growing (or shrinking) file is computed ("meetTime").

For fixed-size files the meetTime will be the same as the reachTime of course. The meetTime only makes sense in case a file is growing and at the same time read (e. g. when a movie is downloaded to a file by one process and converted by a different process; using this tool can tell you when the converter process might run dry on the input because the download wasn't fast enough, and in this case you maybe can pause the converter to prevent this situation).

The tool is designed as a library; the display of the information is independent from the gathering of the data. Please feel free to create more fancy displays, add percentage output etc.

'Which' for Windows (Python)

2013-08-16T09:14:07-07:00

Python recipe 578642 by Robert Pyron (commandline, python, utility, which, windows). Revision 2.

WHICH.PY scans through all directories specified in the system %PATH% environment variable, looking for the specified COMMAND(s). It tries to follow the sometimes bizarre rules for Windows command lookup.

download the Activestate cook book recipe (Python)

2013-01-29T16:24:22-08:00

Python recipe 578439 by lwz7512 .

Small effort to store the python recipes to our local

similar effort by other people: 543267-i-will-download-all-of-the-recipes-from-the-python 535162-i-download-all-the-python-cookbook-recipes

Python script to create a header for Python scripts (Python)

2011-10-02T15:45:11-07:00

Python recipe 577846 by userend (2, auto, create, emacs, header, linux, python, script, vim). Revision 5.

This will create a header for a Python script. It is a nice way keep a track of what your script does and when it was created, the author of the script, etc..

Update: Now, it will automatically open with one of the two most popular editors, Vim or Emacs! This script has been updated from the second version to replace spaces with underscores in the title, to convert uppercase to lowercase. It also checks to see if there is a script with the same name in the current working directory so it will not overwrite another file. Please leave comments and suggestions.

gprof2dot.py (Python)

2012-05-18T14:34:13-07:00

Python recipe 578138 by Stephen Chappell (profiling, tools, visualization).

This is the gprof2dot.py program converted for use with the latest version of Python (3.2). It generates a dot graph from the output of several profilers. Please observe the original License embedded by the author, Jose Fonseca. His website for this program can be found on Google Code.

CGI Image Viewer (Python)

2012-07-02T22:52:32-07:00

Python recipe 578186 by Stephen Chappell (archive, cgi, images, old).

If you have ever started a program and never finished it, then you may recognize the code below for what it is: an experiment begun but not completed, meant to allow viewing pictures on a server. It is included here as an exercise for the reader to complete and is committed for archival to be run under Python 2.5 or later versions.

download the Activestate cook book recipe (Python)

2012-07-04T12:14:22-07:00

Python recipe 578193 by Sudeep AM . Revision 2.

Small effort to store the python recipes to our local

similar effort by other people: 543267-i-will-download-all-of-the-recipes-from-the-python 535162-i-download-all-the-python-cookbook-recipes

Quickly add all dirs to sys.path if dir has .py file (Python)

2012-04-06T16:06:17-07:00

Python recipe 578097 by Andrew Yurisich (add, os_walk, sys_path). Revision 2.

Add all dirs under folder to sys.path if any .py files are found. Use an abspath if you'd rather do it that way.

Uses the current working directory as the location of using.py. Keep in mind that os.walk goes all the way down the directory tree.

Password Card Generator (Python)

2012-01-26T02:37:30-08:00

Python recipe 578027 by userend (card, create, generator, passwd, password, python, secret).

This project was inspired by the passwordcard.org website. I wanted to see if I could do the same thing using Python. Select a password using this convenient card that you carry with you.

Selective directory walking (Python)

2011-10-20T05:05:39-07:00

Python recipe 577913 by Nick Coghlan (directories, files, globbing). Revision 2.

Python's os.walk() standard library iterator is useful if you want to walk an entire directory tree, but you're on your own when it comes to implementing name filtering and recursive depth limiting on top of it.

This recipe supports these features with an interface that is just as convenient as the underlying os.walk() API, while being significantly more powerful.

Watch directory and do periodic commits to Subversion repository. (Python)

2011-02-10T14:00:13-08:00

Python recipe 577570 by Jiri Zahradil (subversion, watch).

You run this script with directory as parameter (defaults to current directory) and scripts watch this directory for changes in files - creating new file, deleting some file and modification to any file. All these changes are periodically commited to subversion repository using external commands.

Not especially good for coding but great for tracking changes in your text files f.e. during essay writing etc.

Self Extracting Archiver (Python)

2012-06-20T22:32:01-07:00

Python recipe 577485 by Stephen Chappell (archive, python). Revision 6.

This is a command-line tool for making self-extracting file archives in Python.