While many GUI toolkits require you to precisely place widgets in a window, using absolute positioning, GTK+ uses a different approach. Rather than specifying the position and size of each widget in the window, you can arrange your widgets in rows, columns, and/or tables. The size of your window can be determined automatically, based on the sizes of the widgets it contains. And the sizes of the widgets are, in turn, determined by the amount of text they contain, or the minimum and maximum sizes that you specify, and/or how you have requested that the available space should be shared between sets of widgets. You can perfect your layout by specifying padding distance and centering values for each of your widgets. GTK+ then uses all this information to resize and reposition everything sensibly and smoothly when the user manipulates the window.GTK+ arranges widgets hierarchically, using containers. They are invisible to the end user and are inserted into a window, or placed within each other to layout components. There are two flavours of containers: single-child containers, which are all descendants of Gtk.Bin, and multiple-child containers, which are descendants of Gtk.Container. The most commonly used are vertical or horizontal boxes (Gtk.Box) and grids (Gtk.Grid).

Source: 5. Layout Containers — Python GTK+ 3 Tutorial 3.4 documentation

A Gtk.ComboBox allows for the selection of an item from a dropdown menu. They are preferable to having many radio buttons on screen as they take up less room. If appropriate, it can show extra information about each item, such as text, a picture, a checkbox, or a progress bar.Gtk.ComboBox is very similar to Gtk.TreeView, as both use the model-view pattern; the list of valid choices is specified in the form of a tree model, and the display of the choices can be adapted to the data in the model by using cell renderers. If the combo box contains a large number of items, it may be better to display them in a grid rather than a list. This can be done by calling Gtk.ComboBox.set_wrap_width().The Gtk.ComboBox widget usually restricts the user to the available choices, but it can optionally have an Gtk.Entry, allowing the user to enter arbitrary text if none of the available choices are suitable. To do this, use one of the static methods Gtk.ComboBox.new_with_entry() or Gtk.ComboBox.new_with_model_and_entry() to create an Gtk.ComboBox instance.For a simple list of textual choices, the model-view API of Gtk.ComboBox can be a bit overwhelming. In this case, Gtk.ComboBoxText offers a simple alternative. Both Gtk.ComboBox and Gtk.ComboBoxText can contain an entry.

Source: 13. ComboBox — Python GTK+ 3 Tutorial 3.4 documentation

Source: MySQL :: MySQL Connector/Python Developer Guide :: 5.1 Connecting to MySQL Using Connector/Python

Liz: If you use Raspbian, you’ll have noticed that Mathematica and the Wolfram Language come bundled for free with your Raspberry Pi. (A little boast here: we were only the second computer ever on which Mathematica has been included for free use as standard. The first? Steve Jobs’s NeXT, back in 1988.)  Earlier in July, Wolfram Research announced a big update to Mathematica, with the introduction of Mathematica 10. Here’s a guest post announcement from Arnoud Buzing at Wolfram about what the new Mathematic

Source: Mathematica 10 – now available for your Pi! – Raspberry Pi

The Banana Pi is a series of credit card-sized single-board computers based on a low cost concept for inner software and hardware development and school software learning such as Scratch. Its hardware design was influenced by Raspberry Pi in 2013. It is produced by the Chinese company Shenzhen SINOVOIP Co.,Ltd. Banana Pi software is compatible with Raspberry Pi boards. Banana Pi also can run NetBSD, Android, Ubuntu, Debian, Arch Linux, Raspbian operating systems, though the CPU complies with the requiremen

Source: Banana Pi – Wikipedia

I made a simple Tasker scene similar to Cifs Manager to mount my NFS shares. If there are fellow Tasker users among you, I’d like to get some feedback: http://forum.xda-developers.com/show…php?p=50480146 The task basically uses the commands above to do the dirty work.

Source: How can I mount a NFS share? – Page 7

Name

mpc – Program for controlling Music Player Daemon (MPD)

Synopsis

mpc [options] <command> [<arguments>]

Description

mpc is a client for MPD, the Music Player Daemon. mpc connects to a MPD and controls it according to commands and arguments passed to it. If no command is given, the current status is printed (same as ‘mpc status’).

Options

-f,–format

Configure the format of song display for status and the playlist. The metadata delimiters are “%name%”, “%artist%”, “%album%”, “%title%”, “%track%”, “%time%”, and “%file%”. The [] operator is used to group output such that if no metadata delimiters are found or matched between ‘[‘ and ‘]’, then none of the characters between ‘[‘ and ‘]’ are output. ‘&’ and ‘|’ are logical operators for and and or. ‘#’ is used to escape characters. Some useful examples for format are: “%file%” and “[[%artist% – ]%title%]|[%file%]”. This command also takes the following defined escape sequences:
\\ – backslash
\a – alert
\b – backspace
\t – tab
\n – newline
\v – vertical tab
\f – form-feed
\r – carriage return

–wait

Wait for operation to finish (e.g. database update).

-q,–quiet,–no-status

Prevents the current song status from being printed on completion of some of the commands.

-v,–verbose

Verbose output.

-h,–host

The host to connect to; if not given, the value of the environment variable MPD_HOST is checked before defaulting to localhost. This default can be changed at compile-time.To use a password, provide a value of the form “password@host”.

If you specify an absolute path, mpc attempts a connection via Unix Domain Socket.

-p,–port

The port to connect to; if not given, the value of the environment variable MPD_PORT is checked before defaulting to 6600. This default can be changed at compile-time.

Commands

add <file>

Adds a song from the music database to the playlist. Can also read input from pipes. Use “mpc ls | mpc add” to add all files to the playlist.

clear

Empties playlist.

crop

Remove all songs except for the currently playing song.

current

Show the currently playing song

crossfade [<seconds>]

Gets and sets the current amount of crossfading between songs (0 disables crossfading).

del <songpos>

Removes a playlist number from the playlist. Can also read input from pipes (0 deletes the current playing song).

disable <output #>

Disables the output, number is required.

enable <output #>

Enables the output, number is required.

idle [events]

Waits until an event occurs. Prints a list of event names, one per line. See the MPD protocol documentation for further information.If you specify a list of events, only these events are considered.

idleloop [events]

Similar to “idle”, but re-enters “idle” state after events have been printed.If you specify a list of events, only these events are considered.

listall [<file>]

Lists <file> from playlist. If no <file> is specified, lists all songs.

load <file>

Loads <file> as playlist.

ls [<directory>]

Lists all files/folders in <directory>. If no <directory> is specified, lists all files in music directory.

lsplaylists

Lists available playlists.

move <from> <to>

Moves song at position <from> to the position <to> in the playlist.

next

Starts playing next song on playlist.

outputs

Lists all available outputs

pause

Pauses playing.

play <position>

Starts playing the song-number specified. If none is specified, plays number 1.

playlist

Prints entire playlist.

prev

Starts playing previous song.

random <on|off>

Toggle random mode if state (“on” or “off”) is not specified.

repeat <on|off>

Toggle repeat mode if state (“on” or “off”) is not specified.

replaygain [<off|track|album>]

Sets the replay gain mode. Without arguments, it prints the replay gain mode.

single <on|off>

Toggle single mode if state (“on” or “off”) is not specified.

consume <on|off>

Toggle consume mode if state (“on” or “off”) is not specified.

rm <file>

Deletes a specific playlist.

save <file>

Saves playlist as <file>.

search <type> <query> [<type> <query>]…

Searches for songs where all of the given tag <type>s match the given <query>s. Any number of tag type and query combinations can be specified. Possible tag types are: artist, album, title, track, name, genre, date, composer, performer, comment, disc, filename, or any (to match any tag).

find <type> <query> [<type> <query>]…

Same as search, but match <query>s exactly.

findadd <type> <query> [<type> <query>]…

Same as find, but add the result to the current playlist instead of printing them.

list <type> [<type> <query>]…

Return a list of all tags of given tag <type>. Optional search <type>s/<query>s limit results in a way similar to search.

seek [+-][<HH:MM:SS>] or <[+-]<0-100>%>

Seeks by hour, minute or seconds, hours or minutes can be omitted. If seeking by percentage, seeks within the current song in the specified manner. If a “+” or “-” is used, the seek is done relative to the current song position. Absolute seeking by default.

shuffle

Shuffles all songs on the playlist.

stats

Displays statistics about MPD.

stop

Stops playing.

toggle

Toggles between play and pause. If stopped starts playing. Does not support start playing at song number (use play).

update [–wait] [<path>]

Scans music directory for updates if no <path> is specified. If one or more <path>’s are specified, scans only those path’s for updates. Can take input from a pipe.With –wait, mpc waits until MPD has finished the update.

version

Reports the version of MPD.

volume [+-]<num>

Sets the volume to <num> (0-100). If “+” or “-” is used, then it adjusts the volume relative to the current volume.

Examples

For useful examples of mpc use in playlist parsing, see mpd-m3u-playlist.sh and mpd-pls-playlist.sh.

Bugs

Report bugs on http://www.musicpd.org/mantis/

Note

Since MPD uses UTF-8, mpc needs to convert characters to the charset used by the local system. If you get character conversion errors when you’re running mpc you probably need to set up your locale. This is done by setting any of the LC_CTYPE, LANG or LC_ALL environment variables (LC_CTYPE only affects character handling).

See Also

mpd(1)

Author

See http://git.musicpd.org/cgit/master/mpc.git/plain/AUTHORS

Referenced By

mpd.conf(5), mpdscribble(1)

Source: mpc(1) – Linux man page

The raspi-config tool helps you to configure your Raspberry Pi; several settings can be changed with this tool without having to know the correct commands to use. It is written as a bash script, run in a terminal window, and uses whiptail (whiptail is a “dialog” replacement using newt instead of ncurses, see “man whiptail”) to create the windows, menus and messages. Some changes require “administrator” permissions, so the tool must be run in a terminal with:sudo raspi-configThis can be run from the command line or from a terminal window if using the GUI. Older versions of Raspbian would boot to the command line and the raspi-config tool would run on first boot after installation. Newer versions boot to the GUI and do not run raspi-config. There is a similar GUI configuration tool that can be run from the menus.Although it is already installed on Raspbian, and there is an update option within the menus, it is installed or updated from package raspi-config.

Source: RPi raspi-config – eLinux.org

Next up we install the software onto the Pi that will act as the ‘hostap’ (host access point) You need internet access for this step so make sure that Ethernet connection is up! sudo apt-get update sudo apt-get install hostapd isc-dhcp-server (You may need to sudo apt-get update if the Pi can’t seem to get to the apt-get repositories)

Source: Install software | Setting up a Raspberry Pi as a WiFi access point | Adafruit Learning System

Source: Hotspot – WiFi Access Point | Raspberry-at-home.com – Your ultimate source of Raspberry Pi tutorials (WiFi, 3G, XBMC, Subtitles, VoD, TVN Player, IPLA, TVP, Squeezeslave, Logitech Media Server, Sickbeard, Webcam, Torrent, DLNA)